Home

  Subscriber Pages

  Table of Contents

  About DynoTech

  Links

  Forums

  Subscribe

 

 Independent Dyno Testing - Sleds - Bikes ... Articles ... Test Results ... Subscribe Now!

Welcome
to the DynoTech Research sample page.

Below is a list of Articles available to our subscribers.
Click here to view a Sample

ARTICLES
(use your browser's 'find' command to search this index - Ctrl F in Explorer)

AmSnow/DTR Shootout XXV  details of the dyno certification
compare 120, 150, turbo class dyno results--compare 2015 to 2014 when HP is lower or higher
12/15/2014

2015 Polaris 800HO engine  2015 Polaris Axys with the new engine
77 dyno tests, test both original and an ECU with breakin mode removed, tested in 30 degree dry air
10/7/2014

Yamaha Viper  Excell exhaust and intake improvements
compare bone stock to lower backpressure muffler, and tuned airbox with outside air intake
9/8/2014

Etec 800 D&D trail port  Compare stock reeds vs Boyesen Rad Valves
also airflow/ HP improvements with preproduction Boyesen Viton sealed/ dampened/ insulated Rage Cages!
5/8/2014

Polaris ProR 800  new style rubber-dampened VForce3 reeds
compare airflow, horsepower, and fuel tuning with 2012, 2013, and 2014 ECU calibration
2/24/2014

SkiDoo 600RS  modifying for maximum horsepower!
Various pipes, port configuration, compression ratios, target 170HP
2/19/2014

DETONATION  a technical explanation by Kevin Cameron
Causes, effects, avoidance... understanding the chemistry = better tuning!
1/31/2014

2014 Yamaha Viper  MC-Xpress "190" turbo system
dyno tested with 91.4 octane fuel, compare HP curve to 2014 stocker
1/17/2014

Supercharged Yamaha Apex  Truro Recreation Centrifugal Supercharger
Installed by Bender Racing Canada, tuned with no clicks of detonation with 91.1 octane R+M/2!!!!
1/9/2014

AmSnow Shootout XXIV  Dyno certification of the 2014 stockers
Cat XF6000, 7000, 8000, Etec 600 & 800, Viper vs XF7000!, Polaris Indy 600 & 800
12/19/2013

2014 ZR8000  Muffler comparison, Phase 2
SLP, MBRP, Speedwerx, BMP and D&D Riot Kit with Stock, D&D, and Jaws exhaust
12/19/2013

2014 Polaris Indy 800  Boyesen Rad Valve test
Compare drastic difference in fuel curve from 2013-2014, compare stock reeds to Boyesen Rad Valves
12/18/2013

ZR8000 stocker  compare aftermarket mufflers & Jaws single
horspower, dB, airflow, backpressure, and appearance
12/3/2013

Etec 800 pump gas mods  CrankShop Essex Junction VT TrailPort
testing higher airflow engine with timing, fuel flow, Y pipes and single pipes on 92.7 octane
4/11/2013

SkiDoo 600RS race engine  FPP engine mods, Jaws high RPM pipes
Jake Lehnen's quest for SkiDoo 600 HP to match the Hentges /racing Polaris 600 mods
3/4/2013

SkiDoo ETEC 800 turbo  dealer-installed FPP pump gas trail sled
Full Power Performance system tested on Maine pump gas by Kevin Freeman
2/13/2013

Two-Stroke Turbo Update  Gus Bohne Turbo Tuning, Phase II
Turbo Mach Z twin, now with twin pipes, Turbo HTG 1080 triple, now with dialed in carburetion
1/25/2013

Yamaha Nytro 2014?  new stuff is coming--could this be it?
improvements in driveline technology could be the new frontier!
12/31/2012

SkiDoo ETEC 800 Ypipe  Petschke Motorsports custom Y pipe
compare stock Y pipe airflow CFM and HP vs Petschke Y pipe
12/20/2012

2012 dyno certification  AmSnow/ DTR NY shootout
Stock 120, 150, and Unlimited sled class comparisons include SC Nytro, & turning up the boost
12/9/2012

2013 Polaris 600 IQR  new mod rules call for revised port timing!
compare 2012 Cat, SkiDoo, and Polaris 600 snocrossers to this powerful new 2013 stocker
11/12/2012

AC ProCross 800 big bore  Bikeman 900cc pump gas trail big bore
Dyno tune session with all the BMP big bore options, perfect cold weather PCV tune
10/31/2012

2012 Etec 800  production Rad Valves, PCV fuel tuning!
rad Valves vs Stock reeds, Maxing out fuel flow with new PCV, adding more HP with pipe swap
10/31/2012

Closed Loop EFI tuning  Pinnacle Performance piggy-back controller
assess response time to achieve commanded A/F ratio, and assess accuracy
9/5/2012

Coolant flow testing  SkiDoo 600 with and without CPC couplers
those harmless looking quick couplers can sap your performance if installed improperly!
7/30/2012

Polaris 600 SnoX Engines  the evolution of the Hentges Racing 600 mods
documented HP improvements each year from 2006-2012
5/16/2012

SkiDoo ETEC 800  Boyesen Rad Valve test
compare stock reeds airflow CFM and HP to Boyesen Rad Valve reed cages
5/10/2012

2012 SkiDoo Etec 800  compare HP with various ECU tuning
breakin vs nonbreakin, vs 2013 reflash, vs tweaking timing for max HP, cold engine vs hot engine
4/29/2012

2012 F1100T UPGRADES  JD Powersports ECU reflash and exhaust
test JDP 4 switch selection tunes with stock muffler, quiet trail muffler, and 3" ID lakerace exhaust
1/29/2012

Yamaha Apex/ Yamacharger  stock Apex with inexpensive light boost tune
compare stock Apex to Yamacharged Apex with stock, MBRP, and Bender mufflers plus PCV added fuel
1/20/2012

Etec 800 turbo  Full Power Performance trail turbo system
big power increases shown with 3, 5, 7, and 8 psi boost. More left on the table!
1/19/2012

Trail Mod ProCross 800  This is the sled D&D ran at the '11 Shootout
D&D trailport hotrod package and quiet exhaust, tuned to max power on pump gas!
1/2/2012

two stroke Turbo Trilogy  Gus Bohne turbo systems on three engines
DNE 1700 quad, Mach Z 1000 twin, HTG 1080 triple--record HP is made on this day!
12/30/2011

Z1/ F1100T tuning  turbo Dynamics ECU reflash/ 4 switch tuner
maximum pump gas HP with pump gas/ water methanol injection to suppress detonation
12/14/2011

Yam Apex HP improvements  D&D Powersports inexpensive mods
increase airflow and HP with exhaust and intake mods plus excellent PCV fuel tuning
12/13/2011

2011 Adirondack Shootout  stock 2012 model dyno certification
compare all 120hp class & 150hp class sleds torque and hp with fuel tuning information
12/12/2011

2012 SkiDoo 600RS  stock snocross 100 octane race engine
compare 2012/early engines, comments by CrankShop engine modifier Will Doe
11/20/2011

2012 Arctic Cat 800/925  RK Tek 925cc big bore on pump gas
incredible HP-- compare RK Tek big bore with perfect tuning, stock vs D&D single pipe
10/29/2011

Yamaha Nytro Turbo  Full Power Performance trail turbo system
all stock engine-- create incredible HP by matching octane to boost, with accurate fuel tuning
10/28/2011

XF1100T Outlaw Drag Sled  the DTR Horsepower record is eclipsed again!
we learn what it takes to increase the stock engine's 180HP to over 600HP!
10/13/2011

2012 Cat ProCross 800  stock evaluation & asphalt dyno tune
compare 2011 vs 2012, fuel tweaks, timing tweaks, backpressure tweaks, Boyesen Rad Valves
8/27/2011

TURBULENCE NEEDED!  Kevin Cameron: turbulent vs laminar flow
modern thinking on maximizing HP by optimizing squish clearance and engine cooling system design
7/31/2011

Z1 turbo dragracer  D&D "Magic" engine and turbo system
Eight HP per cubic inch is doable with proper parts and tuning!
7/3/2011

Snowmobile Emissions  EPA rules and test procedures
explaine by Ryan Hayes, Arctic Cat Inc. Engine Development/ Calibration Engineer
6/30/2011

Critical dyno test data  peak HP RPM vs average pipe gas temp
using test data to create best acceleration with no guessing!
3/27/2011

DNE 1700 radar run sled  upgraded to turbo boost
new DTR torque record, more to come when we rev it over 6500 next time
3/23/2011

SkiDoo XP800R trail mod  Boyesen Rad Valve test
compare stock reeds to Boyesen rad valve cages
3/16/2011

2011 Polaris ProR 800  Pipe Shootout, and cheap engine mods
Compare stock to Aaen, BMP, DynoPort, SLP then raise cylinders with a shim kit and hang on!
3/14/2011

2010-11 Crossfire 800  compare stock reeds vs Boyesen Rad Valves
airflow % increase = horsepower % increase
2/19/2011

SkiDoo ETEC 800  losing HP after some period at WOT?
analysis of previous dyno test data may explain the phenomenon
2/18/2011

AC Crossfire/ M1000  Y pipe and single pipe shootout!
compare stock to BMP, D&D, SLP, and Speedwerx
2/9/2011

Crankshop 1500 triple  The most powerful triple two stroke at DTR
Compare early "10" pipes to more powerful "22" pipes
2/3/2011

2010 Adirondack Shootout  AmSnow/ DTR shootout sled dyno certification
compare torque and HP of all the 600/ 800 class sleds at this year's shootout at Woodgate, NY
12/22/2010

Crossfire 800 turbo  Boondocker turbo system on D&D 901
Glenn Hall dyno tunes this big bore crossfire to max HP for hillgragracing, lakeracing
12/5/2010

Modern dyno technology  recording data 100x per second
reading between the lines of a typical dyno test on our Crossfire 800 pipe shootout
12/5/2010

2011 new, stock 800s  eastern sled dealers' "real world shootout"
Arctic Adventures, Livingston Arctic Cat, Victory Motorsports with zero mile 800cc sleds
12/3/2010

Polaris ProR800 "tuneup"  shimming cylinders to match the D8
compare airflow SCFM stock vs cylinders raised to make ProR800 port timing = Dragon 800
12/3/2010

Arctic Cat Crossfire/M800  single pipe Shootout, session 2
SLP Crossfire/ M800 pipe tested, new BMP Y pipe compared to stock and D&D single
11/28/2010

2010 Polaris Dragon 800  final April flash fuel flow vs prior flashes
also compare stock vs. CPI twin pipes
11/27/2010

Arctic Cat Crossfire/M800  single pipe Shootout
compare Ypipes, single pipes to see who has best torque, best HP on pump gas
11/16/2010

2011 Polaris Pro R 800  production sled stock evaluation
compare ECU with and without breakin mode, lean out fuel flow for max power
11/8/2010

Arctic Cat Z1 turbo  Turbo Dynamics ECU tuning/ upgrades
Max power on pump gas with large intercooler, high flow exhaust, and ECU reprogramming
9/28/2010

2011 Yamaha Apex  preproduction sled w/ EXUP
detailed HP/TQ comparison w/ 2010, and Kevin Cameron explains EXUP
9/11/2010

Z1 Turbo Lakeracer  D&D Powersports's latest HP upgrade
bigger turbo, intercooler, extra injectors, cnc porting, turbo cams, etc etc
7/23/2010

2011 Polaris Rush 800  preproduction stocker compare to Dragon 800
different HP curves, influenced greatly with Power Commander V tuning
4/15/2010

SkiDoo 4tec header update  testing the new Hindle Exhaust System
Use the PCV to tune Hindle vs MBRP vs DynoPort quiet muffler for maximum horsepower
3/26/2010

Yamaha Nytro Exhaust  Hindle tuned header and muffler system
compare bone stock Nytro vs stock header & Hindle muffler, Hindle header & stock muffler, Hindle header & Hindle muffler
2/27/2010

2010 Dragon 800  annoyingly lean midrange, and goofily fat WOT
DynoTechJim's theory of causes of the infamous stumble, and possible ways to rectify
2/21/2010

2010 1/2 SkiDoo Etec800  Great power with low emissions!
test data stock, BMP Y pipe, DynoPort single pipe, more power to come when we can manage fuel flow....
2/20/2010

Polaris FST turbo  performance improvements on pump gas
stock 07 vs 08, then ELA muffler, Racecraft intercooler, Martin Filfe ECU reprogramming
12/27/2009

AmSnow/ DTR Shootout XX  certification dyno test data and comparison
Rush, Etec, F6, Vector EFI, D8, XP800, F8, Apex, XF1000, Z1, Nytro, Cat SnoPro500
12/15/2009

another DTR HP record  Justin Durand's Vmax4 custom turbo system
spring steel reed petals, no more signs of fiber reed breaking/ burning
12/13/2009

SkiDoo 4tec 1200  header and muffler upgrades
compare stock w/ Straightline, MBRP, Crankshop-DynoPort headers, various mufflers, fuel tuning with Power Commander V
12/4/2009

2010 AC F8 vs X Fire 800  compare stock HP, and with D&D exhaust
F8 stock vs Crossfire stock, then both with D&D Y pipe and D&D single pipes, stock factory muffler
11/30/2009

2010 Arctic Cat F8  our first production sled on day two
tested stock, with PCV leaned mixture, D&D Ypipe, and D&D single pipe
11/26/2009

Crankshop SkiDoo XP800R  trail mod, ported and with CS exhaust
dyno test data optimizing fuel flow with our own pump gas for max HP, compare to DynoPort XP800 trailmod
11/17/2009

2010 Arctic Cat 800  first production sled
baseline testing from 100 degree coolant temp, through 130+ degree coolant temp
11/6/2009

SkiDoo 4 Tek  2010 Full Power Stage II on pump gas
lower compression forged turbo pistons allow greater power and durability
10/31/2009

Polaris Dragon 800  used 09 upgraded to 2010 specs, final recall
stock, compared to BMP, SLP, and DynoPort pipes plus tuning fuel with new Power Commander V
10/15/2009

Vmax 4 w/ Garrett Turbo  our fourth 500+ HP dyno tune
Justin Durand tunes his radar run sled up to 30 psi boost, more to come
9/21/2009

N.A.N.O. Nitrous Oxide  DynoPort XP800 single pipe mod engine
adding 50 HP per hole is sort of easy with constant 900 psi N2O pressure from full bottle to empty
7/23/2009

D&D 901 big bore twin  installed on 2010 Xfire 800
compare stock 2010 F/M/Xfire 800 with added 100cc bigger bore D&D kit on pump gas.
5/20/2009

One Stop Performance Apex  the third member of the DTR 500 HP club
world record ET/ MPH dragracer requires world record HP. we help OSP tune for even more.
5/5/2009

D&D's Z1 Turbo Upgrades  new DTR pump gas HP record
larger turbo/ intercooler, supplemental fuel, water/ methanol injection to create ultimate pump gas performance
5/3/2009

09 Arctic Cat SnoPro 600  compare to SkiDoo and Polaris SnoX 600's
dyno test data optimizing fuel flow and timing for max HP
4/28/2009

09 Dragon 800 "Reflash"  Casey Mulkins' stocker with reflash
Stock, SLP, BMP, DynoPort ex, PCIII mapping, reduced compression ratio, BMP ported cylinder
4/5/2009

Power Commander 3 Map  Stock Dragon 800 w/ 1/31/09 reflash
maximum HP on pump gas w/ SLP exhaust (160 plus)
3/17/2009

2010 Arctic Cat F8  preproduction sled stock evaluation
technical info plus compare HP curve w/ all 2008 800 twins
3/6/2009

SkiDoo XP800R  trail/ lake race mod engines
compare 09 XP800 stocker to DynoPort trail port 800 and Bikeman Performance 880 big bore
2/28/2009

Arctic Cat Z1 turbo  D&D HiJacker boost/ fuel controller
we take the Z1 to the limit of 91 octane pump gas, then go to the max of the turbo with race gas
2/8/2009

09 Crossfire 800 tuneup  D&D shim kit/ Y pipe/ Single pipe
compare stock vs shimmed cyls, stock vs D&D y pipe, stock pipe vs D&D single pipe
1/18/2009

08 Polaris Dragon 700  latest reflash December 2008
compare stock vs SLP and DynoPort Pipe, then lean out with PCIII to significant HP, 10 pages
1/2/2009

09 AC Crossfire 1000  stock evaluation and bolt-on mods
compare box stock vs BMP Ypipe, BMP single pipe, Boyesen Rad valves, big air intake
12/19/2008

09 SkiDoo 4Tek  stock production sled from CJ Mororsports
compare to preproduction, also with Full Power Perf tuned header and higher flowing mufler
12/16/2008

09 Production Z1 turbo  bone stock evaluation
compare cool intercooler during high speed vs hot intercooler during low speed WOT operation
12/7/2008

Boosted Yamaha Nytro  turbocharging vs supercharging
compare Ulmer/ Turbo Conncetion turbo system vs. Mountain Performance supercharger
11/23/2008

Yamaha Nytro upgrades  Ulmer Racing N.A. performance improvements
airbox mods, filters, Excell three-one header, glasspack muffler
11/12/2008

09 Dragon 800 Switchback  unusually lean and powerful Dragon 800
perhaps some sort of anomaly, excellent stock HP without the aid of a PCIII or Boondocker.....
11/1/2008

09 Pol Dragon 800 prod.  fuel tuning w/ new Power Commander PCIII
stock baseline, plus many iterations of pipes/ mod pipes/ mufflers/ etc (more will be forthcoming)
10/5/2008

SkiDoo 4Tec 1200  exhaust system upgrades
Full Power Performance tuned header with stock muffler/ FP muffler,
9/7/2008

SkiDoo 4TEK Trail Turbo  Full Power Stage II turbo system
six HP printouts, boost adjusted for 87 octane and up to 108 octane, and steps in between
7/28/2008

NEW DTR HP/TQ RECORD  D&D/ Boondocker F1200 turbo dragracer
Custom race turbo system, larger turbo, lots of boost and six injectors worth of high octane fuel
7/25/2008

2009 Arctic Cat Z1 Turbo  preproduction stock evaluation
pump gas stock & w/ high flow muffler & added boost w/ D&D control, plus 100 octane tune, 110 octane tune
7/14/2008

SkiDoo 4Tek trail turbo  Full Power Performance turbo 87 octane tuneup
compare lowest boost pump gas setting to higher boost setting
6/26/2008

Turbo SkiDoo 4Tek  custom lake race turbocharger system
bone stock engine tuned with race gas and boost pressure
6/18/2008

Factory stock SnoX racers  Polaris 600IQ and SkiDoo 600RS
compare HP/TQ curves when tuned to max power, compare BSFC
6/10/2008

Arctic Cat 2008-9 F8  stock engine evaluation
compare F8 to SkiDoo XP800 and Polaris Dragon 800, all bone stock as delivered
6/8/2008

Polaris Dragon 800  tested with final 09 calibration ECU
compare 08.5 cal to 09 cal, compare stock exhaust to BMP mod stock single and SLP single/ Y/ Can muffler
5/1/2008

SkiDoo 4Tech 1200  2008 SkiDoo demo sled
part throttle fuel consumption, full throttle HP, compare HP/ TQ to Yamaha Nytro,
4/8/2008

08.5 Polaris Dragon 800  stock evaluation with aftermarket pipes
compare stock vs SLP single vs BMP modified stock pipe
3/31/2008

ETEC vs SDI 07 & 08  meaningful airflow and HP comparisons
thanks to Kevin Cameron, Sean Ray, Jim Cooper and Billy Howard for trying to solve this mystery
3/28/2008

Yamaha SRX/ SXR triples  Bender big bore 835/ 800
modernizing the 2000 era Yamah triples to modern HP and performance, low total buck, big output
3/27/2008

one more09 SkiDoo 600ETEC  Billy Howard's "broke in" demo sled
my new $600 airflow meter might help answer the question--"where's the HP?"
3/23/2008

2007 Adirondack Shootout  SnowGoer/ SnowWeek/ DTR Shootout
actual test data obtained during the 18th annual Shootout dyno certification
3/9/2008

New DTR all motor record  HTG XCR1640 four cylinder lake racer
textbook tuneup, added 99 HP in three hour tuneup
3/8/2008

XP800R pipe shootout  08 SkiDoo XP800R stock engine
tested bone stock with tuning, then Aaen, CPI, and DynoPort single pipes, plus DynoPort and BMP Y pipes
2/25/2008

2009 SKIDOO 600 ETEC  STOCK DYNO TEST RESULTS
after six hours of run time, HP, fuel flow, BSFC (record low at part throttle) A/F ratio (record low reading)
2/17/2008

NEW DTR HP/TQ RECORD  DNE 1725 Quad, now with N2O injection
Tommy McConkey's radar run engine, dyno tested NA and with DNE's semi-direct N2O injection
1/26/2008

Pipe Center Section Temp  critical for exact clutch tuning
stock 800HO w/ BMP single, Cudney head, V Force reeds tested with cool, warm, hot pipe temperature
1/21/2008

SkiDoo XP800R stage tune  stock 800 with aftermarket bolt-ons
Bondi airbox, Bikeman Ypipe, Bikeman billet head, Boyesen Rad Valves, Boyesen X wings, timing, jetting
1/20/2008

SnowWeek/ DTR Shootout  600 class and open class stockers
Graphs only, showing representative HP curves of all stockers at 18th annual SW/DTR Shootout
1/1/2008

08 Yamaha Nytro  Excell exhaust system horsepower improvements
compare stock header with and without muffler, to Excell header/ mufflers/ fuel tweaks/ timing tweaks
12/31/2007

Yamaha Apex CPR turbo  stock Apex with Simons front mount turbo
compare lowest boost pump gas setting to higher boost setting
12/13/2007

SnowWeek/DTRshootout  trail and lake mod entries
MPH and ETs of trail mods 1000ft and lake mods 660 ft
12/7/2007

F1000 pipe comparison  aftermarket Y pipes/ single pipes/ cans
compare stock exhaust with Speedwerx, D&D, and Bikeman exhaust components
11/28/2007

ZR900 trail modifications  Tom Mango
pump gas tuning with mods/ parts cherry picked from five different companies
11/9/2007

Stock Polaris Dragon 700  BMP modified stock pipe evaluation
compare stock exhaust with Bikeman Performance modified stock single pipe, BMP lightweight muffler
10/31/2007

SkiDoo Rev 800 trail mod  CJ Motorports 860 pump gas big bore
pump gas modifications including head, porting, pipe mod, airbox, timing
10/31/2007

Mach Z reed dyno test  trail ported w/ Crankshop twin pipes
compare stock reeds/ cages with Boyeson Rage Valve reeds/ cages
10/27/2007

08 Yamaha Nytro  stock evaluation
compare stock vs reduced exhaust backpressure
10/2/2007

Yamaha APEX drag engine  MPI supercharged w/ methanol fuel
big bore, stroker w/ Autronics fuel/ spark management built by Woody
9/24/2007

D&D F12 Boondocker turbo  New DTR two-cycle record once more
dyno test results of Glenn Hall/ Jason Stoviac's Firecat with this supremely powerful F1200 boosted engine
6/13/2007

D&D F1200 N2O engine  new DTR two cylinder HP record
Jason Stoviak and Glenn Hall using D&D & Boondocker N2O to eclipse the DTR two cylinder record
4/16/2007

2008 SkiDoo MXZ 800R X  stock dyno and weight evaluation
test data of preproduction unit compared to rev800 DPM early model, plus our own digital scale numbers
4/11/2007

Dead 1 Dave's F1000  HTG lake race porting w/ D&D pipes
compare D&D Y and D&D single pipe with new D&D twin pipes, all lake race Boondocker tuning
3/21/2007

new boosted DTR record  Full Power Performance Stage IV RX1 turbo
details of engine mods, incredible HP for 61 cubic inches, FPP 716-699-6299
3/21/2007

F1000 pump gas big bore  D&D F1200 big bore kit
tested on pump gas with D&D single pipe and D&D twin pipes
2/19/2007

Mach Z Boondocker N2O  Boondocker N2O system with 91 octane gasoline
regulated Nitrous Oxide delivery pressure for constant HP added regardless of cylinder head pressure
2/13/2007

Trail mod dyno tuning  Mike Gray800HO, BigJohn840, Jason Owen F8
three trail mods in the same trailer, before and after dyno tuning on one day in January.
2/4/2007

SkiDoo 600SDI  single pipe comparison, head modification
compare stock pipe to Bikeman modstock, DynoPort, Straightline plus more HP with less compression
1/24/2007

07 Polaris Dragon 700  stock evaluation and trail mod
stock with SLP and HTG singles, HTG trailport with stock pipe, SLP single and HTG single
1/11/2007

Mach Z ECU comparison...  compare 06 to 07 fuel flow and HP at WOT
06 sea level compared to 07 sea level, 07 medium altitude, and 07 high altitude calibrations (= high HP)
1/5/2007

06 SnowWeek/DTR Shootout  stock sleds dyno certified here
stock sleds uncrated and dynotested to ensure stockness, compare cool pipe to hot pipe
12/26/2006

MPI SC Apex session two  Art Andre's sled with fuel upgrades
larger capacity fuel pump, Boondocker boost and RPM referenced EFI controller
12/22/2006

new NA DTR HP record  DNE 1725cc four cyl two stroke race engine
Tommy McConkey
12/20/2006

Yamaha Apex w/ N2O  Boondocker EFI nitrous system evaluation
stock engine vs two three hole nozzles vs two five hole nozzles, all pump gas safe for short blasts so far...
12/14/2006

06 SW/DTR SHOOTOUT  some trail/ lake mod entrants' dyno numbers
HTG IQ600, C&J HO860, BMP F1000, HTG pump gas 1200 edge, HTG race gas 1200 edge
12/11/2006

07 Cat F8 Trail Mod  D&D ported F8 on pump gas
tested with stock Ypipe stock pipe, D&D Ypipe stock pipe, and D&D Ypipe D&D single pipe stock muffler
11/29/2006

Yamaha Apex Supercharged  MPI supercharger kit on stock Apex
12 psi boost on stock engine with 100 octane gas, Excell stainless muffler
11/28/2006

Trail mod Firecats  one F7, one F8 best stock muffler performance
Bikeman F7 trailport with Bikeman mod stock pipe, Best Perf F8 trailport stock cyls with BM Fatazz pipe
11/15/2006

RK Tek SkiDoo 827 twin  Fred's pump gas trail mod
tested with four single pipes, Bondi airbox, max HP for 20 seconds at WOT on pump gas
11/14/2006

07 F1000 trail mod  D&D trailport F1000 on pump gas
compare D&D ported engine, stock pipe stock muffler, D&D pipe stock muffler, D&D pipe D&D muffler
11/10/2006

07 Yamaha Phazer  stock evaluation with some air intake mods
tweaking the new four stroke twin to optimize A/F ratio and HP.
9/12/2006

07 IQ 600 EFI pipes  compare single pipes
stock pipe/ vs DynoPort pipe/ vs Bikeman modded stock single pipe
9/2/2006

07 Polaris EFI IQ600  stock evaluation
compare cool ipe graph vs hot pipe graph; this will help your clutch tuning
9/1/2006

Mach Z twin 1250 big bore  Bikeman kit with oversize cast cylinders
Billy Howard's dyno test results, variuos Boondocker tuning, and full blast of Boondocker N2O
8/24/2006

2007 Arctic Cat F1000  2007 Arctic Cat F1000 stock evaluation
tested bone stock and with D&D Bullseye modded airbox inlet plus D&D stamped Y pipe
8/23/2006

2007 Arctic Cat F1000  jpeg graph of t data included in text article
bone stock vs mod air intake vs D&D Y pipe
8/22/2006

Big Bore Fusion 600/660  Sean Ray's 660 tested with single pipes/ cans
stock pipe/ stock muffler vs aftermarket singles/ cans also Bikeman modified stock Fusion 600 pipe
8/6/2006

Big Bore Fusion 600/660  Graph of stock exhaust vs other pipes/ cans
experiment, trying to figure out how to get jpeg files into DTR articles
8/5/2006

06 Polaris Fusion 600  low buck HP improvements, Aftermarket singles
reeds, airbox mods, aftemarket single pipes, Bikeman stock pipe mod, head cut, all on pump gas
6/6/2006

06 Yamaha Apex Turbo  Boondocker GT28RS upgrade turbo kit
sidemount location, dyno tested with 9-1 forged pistons, 12.5 to 27 psi boost dyno results
5/22/2006

06 SkiDoo Rev800  single pipe comparison, trail port with Bikem
test stock/ stock pipe vs stock/ Bikeman pipe vs Bikeman trail port with BMP single pipe, all with stock quiet muffler
5/8/2006

2007 Arctic Cat Jaguar Z1  all-new 1100 four-stroke twin
JD Powersports' new stocker, pre-breakin, pre-turbo
4/22/2006

Turbo Polaris Twin  700 w/ HTG cast cyls, HTG turbo porting
model 66 Aerodyne turbo tuned on dyno for max HP on 990 twin for 660 feet dragracing, new 2 cyl DTR record
3/16/2006

05 Mach Z trail mod  stock reeds vs VForce3 reeds
compare airflow CFM and HP of reeds on HTG trail ported MachZ, Crankshop twin pipes
3/6/2006

05 Mach Z trail mod  HTG ported pump gas engine w/ CS twins
tested with Vforce reeds, stock reeds, then a blast of Compucar N2O--check out the airflow CFM
3/6/2006

Arctic Cat 660 turbo  tuning for much greater pump gas HP
JD Powersports' dynotech research tuning session
3/5/2006

boondocker carbed N2O  assessing fuel flow/ time/ HP
float bowl pressure rise is slow, compromises in tuning are necessary for engine survival
2/19/2006

boondocker carbed N2O  boondocker's carbed N2O fuel flow analysis
steady state dyno, NA vs button pushed, check time seconds vs fuel flow rise/ HP rise and drop
2/19/2006

SkiDoo800/830 big bore  update info on Randy Haulman's 830 twin
porting/ compression tweeks, back to stock 800 pipe, Boss Noss N20 stock and with modified N2O delivery
2/18/2006

800 SkiDoo 830 big bore  Tweener SkiDoo 830 big bore revised dyno data
last test baseline w/600 pipe/ vs revised specs w 800 pipe/vs Boss noss N2O stock and modified
2/18/2006

04 F8 EFI tuning session  Bikeman F8 w/ Bikeman mod stock single pipe
four Boondocker maps, four dyno results safe for 87 octane to 93 octane, long or short runs
2/17/2006

HTG XCR1200  HTG's Shootout Sled, Edge/ XCR1200 stroker
this is the current DTR pump gas king, just what it takes to go 0-117 in 8.6 seconds in a full bodied trail sled
1/26/2006

Fusion 600/660 big bore  Rex Ray's Fusion 600 fitted with 700 pistons
Sean Ray's project sled tested with stock pipe and muffler, tuned to max pump gas HP
1/23/2006

Fusion 900/ HTG 975  Fusion 900 w/ overbored stock cylinders
HTG 975 tested with HTG single pipe, Boondocker nitrous oxide tested separately
1/18/2006

Polaris Fusion 900  Fusion 900 single pipe comparison
stock pipe vs SLP single vs Dynoport single, stock muffler vs SLP muffler vs Dynoport muffler, Dynoport Y
1/17/2006

DynoTech certification  05 SnowWeek/DTR Adirondack Shootout
compare all 600 class engines, compare all unlimited class engines, compare SkiDoo supplied hot ECUs
1/12/2006

05 F7 EFI bone stock  non-Boondocker single pipe options
text & dyno data, stock pipe vs Speedwerx pipe vs Bikeman modstock pipe, SW Can vs stock Muffler
12/31/2005

05 F7 EFI bone stock  non-Boondocker single pipe options
GRAPH stock pipe vs SW pipe SW can vs SW pipe stock muffler vs Bikeman mod stock pipe stock muffler
12/30/2005

05 Cat F7 carbureted  Text & Data on F7 (overlay graph below 12/17)
stock vs D&D F7 monster single vs Bikeman modified stock pipe, torque & HP
12/18/2005

05 Cat F7 carbureted  single pipe options with quiet stock muffler
Stock pipe vs two runs D&D Monster F7 vs two runs Bikeman modded stock pipe, all w/ quiet muffler
12/17/2005

Polaris Dragon 800 2009  stock evaluation w/ aftermarket tuning
compare box stock with proper tuning, various pipe combos.
12/5/2005

SkiDoo MXZ800 twin  RK Tek 827 (830cc) big bore TEXT & DATA
tested with quiet stock pipe, compare stock vs bored carbs, all pump gas
11/21/2005

SkiDoo MXZ 800  Stock MXZ800 vs. RK Tek 827 Big Bore
stock pipe/ stock muffler on both engines, graph only, tesxt to follow
11/20/2005

04 F6 Carbed Firecat  stock EV opening RPM is way too late
graph of stock curve vs stock EV locked open vs normal EV operation and D&D Monster F6/7 single pipe
11/10/2005

04 carbed F6 Arctic Cat  dyno tuned to max, pipe comparison
test data stock tuned to max, lock EX Valves open, then new D&D monster F6/F7 single with stock muffler
11/10/2005

05 Mach Z Trail Mod  Chuckaroo Motorsports trail mod mach Z
Extensive trail porting, 12.5/1 compression, Dobeck EFI controller, Crankshop quiet twin pipes
11/2/2005

05 Mach Z trail mod GRAPH  Chuckaroo Motorsports 203-943-3344 text 11/2
CMS trail porting, 12.5/1 lake race domes, Crankshop Twin pipes, Mark Dobek
10/31/2005

D&D F9ss/ Monster Single  quiet stock muffler, boondocker tuned
graph on lower right is fuel flow lb/hr, note difference in RPM HP peak with different fuel flow
10/26/2005

DDF9ss vs Glenn's F7  Monster Singles and Boondockers on both
you must observe the overall HP curve and fuel floow (lower right part of graph)
10/26/2005

DD F9ss w/ monster single  tuning with boondocker for trail/ lake race
also Glenn Hall's very evil F7 single pipe lake racer, tested with Monster Single, 110 octane, Boondocker
10/25/2005

"hot" 04 F7 EFI stocker  graph only of various exhaust configurations
stock exhaust, D&D ypipe with stock tuned pipe, D&D ypipe with Bikeman mod stock pipe, test on 10/23
10/24/2005

F7 EFI "hot" stocker  stock baseline vs quiet pipe mods
D&D Ypipe, Bikeman modified stock single, then a set of Bikeman trail ported pump gas cylinders!!
10/23/2005

Graphic Comparison  stock header vs Excell Motorsports header
Graphic comparison of airflow CFM vs HP
10/20/2005

05 Vector stock tuneup  stock header vs Excell Motorports 3-1 header
check out airflow CFM as it relates to drastically altered HP curve, all with zero sound increase
10/19/2005

Graph of RX1 vs APEX  horspower curve graphic comparison
RX1 is average of Bender's fisrst 10 runs, Apex is our first 2 runs, note HP shift at 7750
10/18/2005

2006 Yamaha Apex  2006 Yamaha Apex stock dyno evaluation
tested stock and also with Excell Motorsports New Generation center outlet muffler
10/16/2005

F7 tested with 03-06 ecus  scott norine's wife's 04 as a guinea pig
03,04,05,06 ecu plus D&D Ypipe, Monster single, added timing
9/30/2005

2006 Fusion 600 Stage II  adding airflow CFM and adding HP
ported carb boots, larger bore carbs, higher compression pump gas head......
9/18/2005

'06 Polaris Fusion 600  Sean Ray's dad's brand new sled here today
break in, the dial carbs in to perfection, then adding even more CFM & HP with Sean's airbox mods
9/17/2005

F7 Carb SFD tuneup files  free Windyne software wwww.superflow.com
use windyne software to do graphic comparisons of these tests, same as we use here
9/1/2005

F7 carb further tuneup  nipped head, Bikeman stock pipe, D&D Ypipe
this is an 11 test tuneup, highlights show various combos that can add up to 150+ HP
8/31/2005

Rx1 Turbo Drag Sled  Bender Stage 3, 1000cc discplacement
low compression pistons, forged rods, gonzo ball bearing turbo w/ gonzo boost on race gas
8/18/2005

FIRECAT F9  
Bikeman Performance Big Bore Stock Stroke tested with single pipe, SLP twins, D&D twins
8/12/2005

Tom Pechler's XCR600/800  dyno tuned today by Tom's wife Kim
Tom's stationed in Iraq, watched the dyno session live on internet, with this he can get the SFD files and see results
4/27/2005

Firecat F9 evaluations  D&D Powersports F9 and F9ss
F9 tested with twin pipes, F9ss tested with new Monster single pipe and importantly quiet stock muffler
4/12/2005

dyno testing oil  BLUE MARBLE vs. POLARIS INJECTOR OIL
stock XLT600 triple, baseline tested with Polaris oil, then treat and switch to Blue Marble, then back to Polaris oil again
4/4/2005

SkiDoo800 twin tuneup  DynoPort pipe, Bender can, HTG port, ign tmng
Cooper Sales & Service SkiDoo 440rev/ 800x transplant, tuning from 142 to 157 HP
4/1/2005

05 Mach Z trail ported  DNE Performance Mach Z tuneup
also some very violent DNE radar run engines--1234cc quad and a quadzilla 1563 all-engine record breaker at DTR
3/7/2005

05 Firecat F7 EFI  D&D twin pipes fitted to stock OEM muffler
compare torque, HP, airflow CFM between stock single pipe and new Twins
2/17/2005

'05 Polaris IQ 440  a broad powerband, nearly 4 hp/ cu. in.
2/14/2005

HTG Polaris XCR1080  Tom Tyson's wicked pump gas trail sled
upgraded with new HTG High Volume quiet trail pipes
2/11/2005

BikeMan EV Spacer kit  Carbed F7 tested before and after....
excellent midrange Airflow CFM and HP improvements
2/4/2005

04 SnowWeek/ DTR Shootout  dyno test rsults of Shootout sleds
here are the actual numbers of stock sleds prior to woodgate field shootout, thank you SnowWeek
1/30/2005

SkiDoo trailmod twins  600/734 bigbore, 800 Bondi, 800/830 bigbore
pump gas skidoo twins, this time with correct 830 data with corrected ignition timing
12/28/2004

05 F7 tuneup data  one carbed 05 w/ n2o, one "blueprinted" EFI
broken printer, no 3.5" discs, this is the easiest way to get these guys their data, plus it is interesting...
12/25/2004

SFD files PX800 and ZR900  pump gas dyno results, ProX800 and ZR900
SLP trail mod single pipe, SLP stock engine twin pipe ZR900 Cat
12/23/2004

Arctic Cat Potpourri  meaningful Cat dyno test results
D&D F8 stock single pipe, new D&D twins, D&D 1010, 05 F7-- stock, added timing, reduced fuel psi, Stumpy's 04 F7 w/ key, dropped fuel psi, Thing can
12/8/2004

05 SkiDoo MachZ  first dyno test, after breakin hours
this is the test we did during our inaugural LSV session
12/5/2004

05 SkiDoo MachZ SFD file  cool engine, hot pipe
more details coming this PM
12/5/2004

2005 Polaris Fusion  SuperFlowData (SFD) files
dyno test data stock, various airbox mods
11/28/2004

2005 Polaris Fusion  STOCK DYNO EVALUATION
fine tuning airbox for maximum stock HP rewards us with added HP
11/28/2004

'05 F7 EFI dyno test  bone stock with 2 degree key--an anomoly?
10% lower fuel flow than normal, then tested with Speedwerx pipe and then PAC reduced fuel flow.........
11/14/2004

05 Firecat EFI F7  SFD files SuperflowDataFiles
bone stock, Speedwerx single pipe, reduced top end fuel pressure w/ D&D pac valve
11/12/2004

1999 Polaris XCR800  pump gas performance improvements!
proper jetting, DynoPort triple pipes, Dynoport muffler, VForce reeds, timing = incredible HP pump gas bang for the buck
11/9/2004

XCR800 Tuneup....  SuperFlowData Files (SFD) for examination
to view these, you must click on www.superflow.com (link is on our homepage), download free Windyne software
11/8/2004

04 SkiDoo SDI 600  stage tuning the EFI 600 twin SkiDoo
comparing pitted poor leakdown stock rings to fresh aftermarket top end, compression bump, DynoPort pipe/ can, aftermarket reeds, etc...
11/1/2004

04 600 SkiDoo SDI  seven SFD (SuperFlowData) files from 7/24/04
use your free SuperFlow Windyne software to compare/ overlay graph this and other test data SFD files
11/1/2004

Polaris XC600  SLP twin pipes added to John T's dyno mule
airbox mods, jetting tweaks, timing bumps, tuning for max pump gas HP on the Sean Ray XC600 low buck "tuneup".
10/31/2004

XC600 twin pipe upgrade  SuperFlowData (SFD) files
raw data form our dyno, you can mix and match and see all variables and correction factors during our test session
10/31/2004

another Firecat F8  Bikeman stock cyl F8 with modified stock pipe
Mike Zigmont's most powerful stock F7 bumped up to 800cc Sorry non-Cat guys this is very significant. SkiDoo and Pol stuff coming next.
10/27/2004

Ziggy's F8 Bikeman engine  SuperFlow data files
click on SuperFlow on our home page, download free Windyne software, compare these runs with othe SFD's on site
10/27/2004

2005 F7 EFI SFD FILES  03/04/05 comparisons
use your free SuperFlow Windyne software to graphically observe. compare, etc
9/20/2004

2005 F7 EFI EVALUATION  well broken in sleds with 03/04 and 05 ECU's
injector flow rates may have huge impact on tuning, Fuel pressure drop/ timing advance to add 10 HP once again.
9/20/2004

05 REDLINE REVOLT 800  early production unit
800 two-stroke case reed twin, stock evaluation with fuel/ airflow tweeks for max HP
5/9/2004

05 REDLINE REVOLT 800  SuperFlowData files for your perusal
5/8/2004

2005 Yamaha Vector  complete dyno evaluation
compare to RX1, Cat 660 turbo, etc
4/28/2004

2005 Yamaha Vector SFD  SuperFlowData files
compare graphs on your own Superflow free Windyne download
4/27/2004

Arctic Cat F7/F8 big bore  another one, this time by Bikeman Performance
LT Bill DeFranco, max power w/ stock single pipe, SLP twin pipes for pump gas and a separate 100 octane dragrace tuneup
4/26/2004

LT/ Bikeman F7/F8  SFD (SuperFlowData)
use the freee SuperFlow Windyne software to graph/ compare/ analyze these dyno tests
4/26/2004

04 F7 carbureted  final test session (for now)
dyno test with timing backed off, compare dyno numbers with hood closed and air filter membrane attached
4/15/2004

04 F7 Carbureted  SFD (SuperFlowData) of F7 Carb dyno session
download SuperFlow free software (click link), move these tests to disc, do your own graphs, see all other data from each test
4/15/2004

04 F7 Carbureted vs EFI  we figured this thing out, carb HP can = EFI
check this out with 9 degrees added ignition timing (!!) and exhaust valves cranked WFO, EFI owners read'em & weep
4/14/2004

F7 EFI ECU COMPARISON  Chris Heaven's trail mod Iantomassi F7 EFI
test B is with stock F7 EFI ECU, test C is with F6 ECU--note huge difference in EG valve opening and fuel flow lb/hr
4/13/2004

04 F7 CARBURETED  compare HP curve with EFI version
we found the missing airflow CFM, still looking for a few missing HP...
4/11/2004

Stock 04 ProX 700  STAGE TUNING FOR MAX TRAIL PERFORMANCE
jetting, airbox mods, reeds, reeds, carb boot mods, timing tweeks, compression increase, aftermarket pipe...
3/31/2004

2004 F6 Carbureted  EFI vs Carb
modify ignition timing, fuel flow, carb venting, compare early vs late muffler
3/14/2004

F7 EFI performance tuneup  D&D F8 big bore cylinders
assess performace with stock single pipe and muffler, also with D&D twin pipes and can, all on pump gas
2/28/2004

04 ProX800 Tuneup  cheaply bumping HP from 128 to 151 HP
carb tuning, airbox mods, ignition timing, reed testing (read this before you buy reeds for your ProX800), SLP pipe and can...
2/24/2004

'04 Cat F7 EFI TOONUP  Bill DeFranco's next dyno session...
stock bore 700, leaned out fuel flow, advanced timing, Arctic Cat race boxes (1000' and 500')
2/18/2004

04 Firecat F6 EFI tuneup  plus interesting comparison w/ 04 F6 carbed
EFI water temp, fuel mods, timing changes, all on 92 octane pump gas
2/15/2004

2004 Arctic Cat 660 turbo  world's highest boost production gas engine?
2/11/2004

F7 Firecat EFI Big Bore  APC 800cc F8 kit, dyno tested
dyno airflow CFM is directly proportional to HP increase--fuel and timing adjustment are required
2/9/2004

2004 F7 EFI Firecat  tweaking stock ECU fuel curve for MORE HP
direct comparison of 2003 vs 2004 ECU programming, dropping the BSFC to .70 on top end w/o leaning midrange
1/25/2004

'04 Arctic Cat F7 EFI  fuel flow/ HP w/ factory "drag pack" ECU's
Bill "looneytune" DiFranco working his way up to gonzo HP first with factory 1000' and 500' dragrace ECU programming
1/18/2004

SkiDoo Rev 800HO  stage tuning by Kevin Freeman
jetting, timing, DNE ported cylinders, DynoPort pipe, Bender silencer, tuning done by Sled Shop, Presque Isle, ME
12/31/2003

AMSNOW SHOOTOUT '03  dyno certification dyno test data/ info
including lost F6 EFI dyno test, all dyno data, comments, RX1 breakin session
12/12/2003

FEEDBACK--BACKFEED  rethinking Brake Specific Fuel Consumption
upcoming tests: Cat F7 800 big bore, SkiDoo and Pol 800 twins, New DTR High Altitude dyno, AMSNOW certification testing
12/1/2003

2004 Yamaha RX1  Bender Stage III Engine & Turbo System
DynoTech's most powerful snowmobile ever tested here!
11/19/2003

Polaris 680 Ultra  final chapter: upgrade to 1080cc
HTG Big Bore cylinder kit, quiet pipes, Megatron carbs
10/20/2003

dyno "stage" tuning  2004 SkiDoo Rev 600 dyno session text & data!
jetting, ignition timing, airbox mods, Vforce reeds, Bender muffler, DynoPort single pipe
9/30/2003

dyno "stage" tuning  Polaris XC600 SuperFlow dyno test text & data
jetting, ignition timing, Vforce reeds, boost bottle, thicker basegaskets, higher compression, airbox mods (thanks Patty Denicola)
9/18/2003

tuneUP article  Arctic Cat F7 Firecat EXTREME TUNEUP!!!!!
airbox mods, Vforce3 reeds, aftermarket pipe, radical fuel flow adjustments, shocking HP improvements
2/28/2003

tuneup article  ZR800 low buck tuneup continued....
dyno data from test number 006, aftermarket Ypipe with stock tuned pipe, which I forgot to include in the previous article.
2/25/2003

tuneup article  ZR800 low-buck tuneup
jetting, airbox mods, Ypipe mod on Carl McQuillen's semi-stocker
2/22/2003

Kevin Cameron  ROLE OF RPM
RPM, torque, BMEP, IntakeAirVelocity, 2cycleVS4cycle, portTimingVSvalves&camTiming, BoreVSstroke,
2/11/2003

article on RX1 H.P.  the RX1 HP disparity from day 1 to day 2??
we discovered the cause of the missing RX1 HP!! ??
2/11/2003

article online Friday:  RX1 sudden power gain mystery solved??
it happened again on a turbo RX1 while on the dyno-- lost airflow and HP, but we figured it out and got it back!!
2/5/2003

'02 AmSnow Shootout  "A view from the controls"
the 700's and Big Bores, dyno tested and piloted at the Shootout by DynoTech performance maven Sean Ray.
1/15/2003

02 AmSnow Shootout  A View from the Controls
observations of American Snow Shootout dyno & field testing, small bore class by Sean Ray
12/30/2002

Pipe Shootout Update  2002 Polaris XC800 Twin Pipe Shootout
Twin Pipes from Aaen,CPI,HTG,PSI and SLP ....... Which would you buy???
12/22/2002

Now Here  American Snowmobiler Shootout
dyno certification 12/2, 12/3 results posted now!
12/9/2002

2003 Polaris ProX 440  incredible single pipe HP!
the "mystery pushbutton" is the finest creation that Sean and Jim have invented yet! details inside!
11/18/2002

2003 YAMAHA RX1  TURBOCHARGED 2003 YAMAHA RX1
pumping air into the four-cycle engine to make more HP.
11/8/2002

Yamaha RX1 update...  same sled, new day, more airflow and HP!?
you will be as surprised as we were!
11/1/2002

2003 Yamaha RX1  Stock Evaluation
Comments on the dyno performance of our first production RX1. SuperFlow 901 engine dyno, connected directly to RX1 engine output shaft
10/2/2002

Single Pipe Shootout  2002 Polaris XC800
Contributing editor Jim Czekala
6/29/2002

High Altitude  High Altitude Observations
Contributing Editor Bill Davis-High Altitude Observations
2/1/2002

Old Forge Shoot-Out 2001  Old Forge Shoot-Out XII
Contributing Editor Sean Ray - Battle of Old Forge Shoot-Out XII December 2001 with Dyno Test Results
1/1/2002

Volume 7 Number 1  97 ZRT,Mach I,RMK,96 MXZ,680 SPX,Ultra
97zrt600PipeShootout,700Mach I & Race Imp,700 RMK,96 MXZ 670 Perf Imp,680 SPX/600BigBoreSPS,600ZRT,KCameronDetonation
3/1/1997

Volume 6 Number 6  Old Forge VI,600
Battle of Old Forge VI,600/800 Field Shootout/Dealer Prep,96 680 XCR SP,96 ZRT 600 Pipe Update,K Cameron-Detonation
4/1/1996

Volume 6 Number 5  96 Ultra,800 Storm,95 Mach I,96 MXZ 580
96 Ultra Pipe Update,95-96 800 Storm Comp,Turbocharged MXZ 670,V-Max 750 Twin,680 Ultra,95 Mach I Perf,96 SkiDoo MXZ 580,Formula III,KCameron-Airboxes
1/1/1996

Volume 6 Number 4  96 Ultra,95 XCR 600,Formula SLS,ZRT 600
96 Ultra Perf & Two Stroke,95 XCR 600 Pipe Shootout,96 SkiDoo Formula SLS,96 ZRT 600,Turbo V-Max 800 & XCR 600,KCameron-Oxygenated Fuels
5/1/1995

Volume 6 Number 3  Old Forge V,V-Max 600,580 ZR,Mach I & MXZ
Old Forge V,Gyt Kit - V-Max 600,Arctic Cat 580 ZR Shootout,95 SkiDoo Mach I & MXZ,V-Force Reeds - ZRT800,Mod Carb & Vaporation,KCameron-Suspensions
2/1/1995

Volume 6 Number 2  800 ZRT,Formula Z,440 XCR,SkiDoo MX/Mxz,V-max
95 Arctic Cat 800ZRT,94 SkiDoo Formula Z,95 Polaris 440 XCR,SkiDoo MX to MXZ,Decibels,Turbo V-Max 600,KCameron- Combustion
11/1/1994

Volume 6 Number1  V-Max 800,Thundercat,XCR 600,Storm,Mach Z
95 Yamaha V-Max 800,94 Thundercat Pipe Shootout,800 Storm & Mach Z Modifications,94 Polaris XCR 600 Stock Evaluation,KCameron-Suspensions
4/1/1994

Volume 5 Number 6  Old Forge IV,Indy XCR,Mach Z,V-Max 600
Old Forge IV,94 Indy XLT w/Triple Pipes,94 Mach Z w/Jawes Pipes,94 Yamaha V-Max 600,KCameron-Emissions Control & Two Stroke Engines
1/1/1994

Volume 5 Number 5  700 ZR,Indy XLT,Thundercat,580ZR,Formula Z
94 Arctic Cat 700ZR,94 Indy XLT-SLP Pipes & Trail Chambers,1000cc T-Cat,94 Arctic Cat 580ZR,94 Formula Z,Turbo Formula Z,KCameron-Torque & Horsepower
11/1/1993

Volume 5 Number 4  V-max 500 & 600,650 RXL & Mach I 670,94Storm
94 V-Max 500 & 600,Turbocharged 650 RXL & Mach I 670,200+ HP V-Max 4,Mach I 670 Perf Impro,94 Indy 800 Storm,KCameron-Clutching & Pipe Temperature
9/1/1993

Volume 5 Number 3  93 Exciter SX,Indy XLT,Turbo Wildcat 700
93 Exciter SX Pipe Shootout,Indy XLT Pipe Update,Turbo Wildcat 700,KCameron-Octane,Engine Cooling,Turbocharging & Fuel "Puddling"
5/1/1993

Volume 5 Number 2  93 Storm,V-Max 4,Phazer SX,A/C 550 EFi
93 Polaris Storm Perf Improvements,93 V-Max 4 Pipe Shootout,89 Yamaha Phazer SX Pipe Shootout,93 Arctic Cat 550 EFI,Dynometer Testing
3/1/1993

Volume 5 Number 1  Old Forge III,Shootout 580,650 & 750
Old Forge III,Dyno/Field Shootout 580,650 & 750,Arctic Cat T-Cat,92 AWS Wildcat Porting&PSI Pipes,KCameron-Transfer Port Design Turbo Indy 580 XLT
1/1/1993

Volume 4 Number 6  93 XLT,V-Max 4,Formula MX,550 EXT Spec,Mach I
93 XLT 580 Perf,93 V-Max4,SkiDoo Formula MX Perf,EXT Special 550 Pipe Update,Torsion Vib,Mach I 617 Turbo,Exciter II Turbo,KCameron-Carburetors
11/1/1992

Volume 4 Number 5  92 EXT,92 Formula Plus,Turbo V-Max
92 EXT Special Performance Improvements & Pipe Shoot-Out,92 Formula Plus X,ZR 500 Top End Kit,Turbocharged V-Max 4,KCameron-Heresy and Revolution
9/1/1992

Volume 4 Number 4  92 EXT,92 Formula Plus X,RZ 500,Turbo V-Max4
92 EXT Special Perf Improvements,EXT Stock & Mod Pipe Shootout,92 Formula Plus X, RZ 500 Top End Kit,Turbo V-Max 4,KCameron-Port Areas
7/1/1992

Volume 4 Number 3  93 Indy 583,Exciter II,V-Max 4,90Prowler 440
93 Polaris Indy 583XLT,91Exciter II Pipe Shootout,V-Max 4 Pressure & Carb,90 Prowler 440 Perf. Stock & Modified Shootout,KCameron-Combustion Mixtures
5/1/1992

Volume 4 Number 2  Old Forge II,Musclesled,Mach I,V-Max4,Indy
Battle of Old Forge II,Musclesled Shootout,92 Mach I-Perf,V-Max 4 Tuneup,Indy 500 EFI Pipe & Head Cut,700 Wildcat 91&92,V-Max 4 Carb Problems
3/1/1992

Volume 4 Number 1  92 Wildcat,Phazer,Mach IX,Carb Weights
92 Wildcat 700,Modified Yamaha Phazer,92 Mach IX,Stock 700 Wildcat Pipe Shootout,Carb Weights 87-90 Exciter,KCameron-Two Stroke Cooling Systems
1/1/1992

Volume 3 Number 6  91 V-Max,EXT,Mach I,92 Indy
91 V-Max 4,91 EXT Special,92 Polaris Indy 500EFI,Turbocharged Indy 500,91 Mach I, Mod 700 Wildcat,91 Indy 650 Pipe Update,KCameron-Combustion Chambers
11/1/1991

Volume 3 Number 5  91 Mach I,Yamaha&Indy,90 Arctic Cat,Exciter
Nitrous Inj 91 Mach I,91 Yamaha SRV Shootout,90 Arctic Cat Cougar,91 Indy 650 Pipe Update,PSI 650 Exciter Twin & 750 Polaris Triple,KCameron-Oil
9/1/1991

Volume 3 Number 4  Tech Issue,Air Density & Engine Performance
Tech Issue, Air Density & Eng. Performance,EFI & Pipe Temp,Engine Boring & Stroking,Machining a Stroked Two-Cycle Motor
7/1/1991

Volume 3 Number 3  91 Indy,I-500 Snowmobiles,V-Max 4,91 Mach IX
Mod 91 Indy 650,I-500 Cert-Polaris 400XC,Arctic Cat Prowler, Ski Doo MX-X,Yamaha SRV,91 Mach IX Shootout,V-Max 4,KCameron-Fuel Vaporixation & Per
5/1/1991

Volume 3 Number 2  Old Forge,90 Wildcat 650,86 V-Max,91 Indy
Battle of Old Forge,SLP Reeds & Trail Porting 650 Wildcat,86 Formula III V-Max,91 Indy 650 Carb,KCameron-Fuel Volatility & Performance
3/1/1991

Volume 3 Number 1  91 Exciter ,91 Mach I,91 EXT ,91 Indy,BMEP
91 Exciter II,Brake Mean Effective Pressure,91 Mach I,91 EXT Special,91 Indy 500 Stock & Pipe Update,KCameron-New V-Max 4
1/1/1991

Volume 2 Number 6  91 Wildcat,91 Indy,86 V-Max,Indy 500
91 Wildcat Carbureted 700,91 Indy 650 Carbureted,86 Ported V-Max updated,Excellent Engines,89 Mod Indy 500-SLP Pipes,KCameron-Tuning & Temp
11/1/1990

Volume 2 Number 5  91 Mach I,87 Yamaha V-Max,84 El Tigre,91 Indy
91 Mach I Prototype,87 Yamaha V-Max,84 El Tigre 6000,91 Indy 400,KCameron-Crankshafts
9/1/1990

Volume 2 Number 4  90 Middleweights,89 Wildcat,Turbo Indy 650
90 Middleweights-Indy 500 SP,Arctic Cat EXT Special,Formula Plus 500,89 Wildcat 650,Turbo Indy 650,KCameron-91 Yamaha 4 cyl
5/1/1990

Volume 2 Number 3  88 Wildcat,89 Indy 500,90 Polaris RXL,Exhaust
Stock 88 Wildcat Shootout, Modified 89 Indy 500 Shootout, Stock 90 Polaris RXL,KCameron-Making Two-Stroke Exhaust Systems
3/1/1990

Volume 2 Number 2  Phazer,Mach I,90 Arctic Cat Prowler,Nitrous
Modified Phazer Shootout,90 Arctic Cat Prowler,FIII Mach I Shootout,Nitrous Oxide,EFI Update,KCameron-Crankshaft Vibrations
1/1/1990

Volume 2 Number 1  89/90 Indy 650,89/90 Mach I,Indy 500,2-Stroke
89/90 Indy 650 Comparison,89/90 Mach I Comparison,89 Stock Indy 500,Thermal Coating,Compression Ratios,KCameron/Two-Stroke Engines
11/1/1989

Volume 1 Number 6  89 Mach I,89 El Tigre,Fuel Systems
89 Mach I Pipe Shootout & Tune Up,89 El Tigre 6000 Stock & Modified,Thermal Coating,Dyno Terms Refresher,KCameron-Fuel Systems & EFI
8/1/1989

Volume 1 Number 5  89 Mach I,Slick 50,Klotz Nitro,Indy 400
89 Mach I Modifications & Pipe Shootout,Dial-A-Jet,Slick 50 Treatment,Klotz Nitro Additive,Big Bore Indy 400/440,KCameron-Reading Pistons
4/1/1989

Volume 1 Number 4  89 Exciter, Formula Plus, Wildcat, Detonation
Ported Exciter,Bad Vibrations,Airbox Modification,89 Formula Plus,89 Wildcat Formula III,Wildcat Carbs,KCameron-Detonation
2/1/1989

Volume 1 Number 3  89 Wildcat 650, 89 Indy 650, 89 ArcticCat EXT
Stock & Modified 89 Wildcat 650, 89 Indy 650 Pipe Shootout, 89 Arctic Cat EXT,Brake Specific Fuel Consumption,KCameron-Variable Exhaust Timing
10/1/1988

Volume 1 Number 2  88 Phazer, 89 Mach I, 88 Formula Plus,89 Indy
88 Phazer pipe shootout, 89 Mach I, Modified 88 Formula Plus, Airflow, Stock 89 Indy 400 & 500,KCameron-Two Stroke Engines
5/1/1988

Volume 1 Number 1  88 Exciter, Formula Plus, Wildcat, 74 Mercury
Dyno Terms, 88 Exciter pipe shootout & PSI needles, Stock 88 Forluma Plus,Cold Air vs Hot Air-RAD, Stock 88 Wildcat 650, 74 Mercury 400 Snowtwister
1/1/1988


 

 

 

© 2001 Design and Hosting by Marchese Computer Products
Content © 2001 Dynotech Research



DynoTech
8 Apollo Drive
Batavia
NY 14020

phone
585-993-2777

fax
(585)815-0341

email