Go Big Or Go Home
After extensive testing with turbo charging snow bikes our conclusion is that the only way to create a linear power curve is by changing the cams in the motor. The cams in the 450 dirt bike engines have a large overlap which works great for n/a motors, but is the exact opposite for what you want in a turbo motor. We could get the bikes to act decent at lower altitudes, but the second we got them up top all the weak links would amplify exposing themselves. We didn’t feel that customers would want to have to change out their cam shafts between summer and winter seasons nor lose their stock or aftermarket exhaust systems. So 100s of hours later with about 7 different custom turbo sizes that didn’t work at elevation, we hit control alt delete to our snow bike turbo system and scratched the entire idea. But we have a reputation for being pretty relentless here at Raze Motorsports, so we went back to the drawing board and created the very first Altitude Boost Compensating Snow Bike Supercharger Kit.
So Forward Thinking, Everything Else Is Backwards
This kit includes the Raze Performance ECU with a powercurve already tuned for track load (not dirt bike tires!) and automatically compensates for changes in altitude. Also includes everything from the stage 1 kit with the following stacked on: billet flywheel cover, billet supercharger bracket, front mounted Pro Charger, electronic boost control, Bosch Fuel Injector, ½” set back foot pegs & shift lever, duel map switch and a cover to keep the snow and water out of the supercharger pulley system.
Billet flywheel cover- We include a new billet flywheel cover that has a support bearing and seal for the driveshaft that attaches to the end of the crank shaft that drives the supercharger.
Billet supercharger bracket- Our billet bracket bolts to the snout of the flywheel cover, holds the pro charger, and mounts solid to the stock engine mounts.
Pro Charger- A name brand with a reputation of nothing, but quality and performance. The reason we chose this as our key component. The supplied pulleys are pushing this thing at 17lbs that makes a sound at full throttle that will make your spine tingle.
Electronic Boost Control- This is a two piece system. We use a dual acting air actuator commanded by our ECU that directs air pressure to a push/pull style air recirculation valve similar to what you would see on a supercar. Depending on air density, altitude, temperature etc. the engine can’t always handle 17lbs of boost in all environments. So the ECU is monitoring all conditions targeting that perfect 90-100 HP mark at all times. Riding one of our King Kong kit on a cold dry day in Minnesota the ECU might only command 3-4 lbs. A warm day at the top of Cooke City Montana the ECU might be commanding full boost as long as the IAT isn’t hot. Understand that the ECU has full capabilities of commanding 0 boost such as in an overheat situation and 17lbs if needed to get it done. Electronic supercharger boost control based off a super car control strategy…….activation mind blown sequence engaged.
Bosch Fuel Injector- Larger Bosch injector supplied. Not a Chinese look alike either that the aftermarket performance world is so used to seeing. This is the real deal authentic Bosch part.
½” Set back foot pegs & shift lever- The supercharger pulley encroaches on the shift lever. Moving the foot pegs and shifter back ½” is a must.
Cover- a cover to keep the snow and water out of the supercharger pulley system.
Dual Map Switch- Switch toggles between race/cruise mode.
Run any exhaust system- You can run any exhaust system you want. You will just have to weld in the supplied 02 bung so the ECU can auto adjust for your system.
Extremely fast and easy install- This kit uses basic tools and is very easy to install.
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