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compare cool intercooler during high speed vs hot intercooler during low speed WOT operation

As has been their requirement since including aftermarket demos years ago, AmSnow requires aftermarket participants to be display advertisers. The minimum is 1/6th page in the February issue, on the stands in January. Closing for add space commitment is 11/25. Plus...

12/1 Rob Schooping dyno tuning Skidoo triple 1200 stroker lakeracer this one was a hermaphrodite, but not as powerful as the typical HTG1200 triple12/2 private session all day, cameras off12/4 Mike Martin MPI SC Nytro one more time with bigger fuel pump. Mike did a...

    Kawasaki's KR250 road race two-stroke most certainly developed more power after some break-in time, but the energy argument disposes of the idea that it could be a large amount. If much power was going into making metal particles you'd see the...

perhaps some sort of anomaly, excellent stock HP without the aid of a PCIII or Boondocker…..

Xtreme Performance Dyno has been simply removing the Tstats from last year's RMK800 and this years Dragon 800s. This allows unrestricted coolant flow in parallel through front and rear heat exchangers. Bill Davis reports that this drops coolant temp to max of 100-110...

I have a batch of Power Commander PCIIIs w/ factory-style plug-in ECU connectors for Dragon 800s coming in on 10/17. Currently I have maps that we created here for max pump gas HP for stock pipe (drops fuel flow from 110 to 95 lb/hr and adds 10 HP), BMP stock pipe...

There's a good post on HCS Polaris IQ forums by an educated guy requesting correction factors used by OEM and aftermarket companies, and independent dyno testers like me regarding HP results on the new 09 Dragon 800.When I borrowed $50,000 22 years ago to acquire this...

This December, the Adirondack Shootout in Woodgate, NY, will once again be hosted/ covered this year by American Snowmobiler Magazine and the AmSnow website.When our pal Jerry Bassett sold American Snowmobiler a few years back, the new owners opted to skip covering...

stock baseline, plus many iterations of pipes/ mod pipes/ mufflers/ etc (more will be forthcoming)

10/1 AM Casey Mulkin production 09 dragon 800, pipe mods, SLP single, etc my brain is shot after 12 hours of testing changing swapping stuff. This is a hugely powerful engine, but it has been detonating easily, and when it does the ECM seems to overcompensate. Casey's...

11/1-2 Private session, DynoCams off 11/3 Allan Ulmer, Turbo Nytro, Nytro w/ replacement header and other bolt-ons with excellent PCIII tuning, made over 200 boosted HP on 87 octane w/ no signs of knock on deto-phones, the NA sled tweaked to 150hp with intake/ exhaust...

Carl McQuillen Racing Engines in LeRoy, NY has remanufactured two circa 1906 Curtiss OXX6 V8 airplane engines which lifted off Keuka Lake in Hammondsport, N.Y. in a replicated Curtiss America 1913 seaplane. www.seaplanehomecoming.org is where you can see this amazing...

9/2/08 Honda VTX1800 with straight pipes, Edelbrock N2O and Power Commander street/ drag bike w/ 2.5 lb bottle bolted to sissy bar, 90 DJHP on motor, 148 with n2o, but recommended fuel/ n2o jet stagger is for carbs, not EFI...with n2o injection airflow through the...

8/9 Sat Dan Schuler PS800 cancelled, ignition not working8/9 Last year Sean Ray replaced the Aerocharger on NASCAR sort-of-retired Buddy Parrott's HD Softail turbo S&S 113 with a GT25 Garrett for more HP and better longevity. Now Greedy BP wants more so Sean is...

One sign of detonation in a sled engine is spark plug(s) loosening during operation. When I was involved with sled turbo kits, we had a 700 Wildcat turbo that would loosen plugs every time we tried to ride it on pump gas. We even tried red loctite to no avail. Running...

Custom race turbo system, larger turbo, lots of boost and six injectors worth of high octane fuel

7/1 Carl McQuillen's GS1100, nice red 81 classic [on the Cycledyn now] bought with stock engine and noisy header. Tested baseline with loud header, then trying to switch to a stock 4-2 exhaust I snapped off a grade 8 bolt in the aluminum head. Off came the head, over...

 6/7 9AM Sat Scott Brownlee & Nelson Cadieux [Carlson Sports from North Bay Ontario Canada] (1) F7 grass dragracer owned by Terry Waite I'm thinking that all "500 foot" F7 drag boxes may not be created equally--- I've seen too many that with correct fuel...

I will be posting latest Dragon 800 results on 5/1 or 5/2. I used airflow meter this time to compare aiflow with stock, BMP mod and SLP pipe. 5/1 Thursday all day private session, cameras off cancelled and that gave me some time to finish up on the Dragon 800 test...