The momentum of the crank pulley is little to nothing when compared to the momentum of the whole tranny, drive terrain, and wheels. The accessories don't dog the motor down that badly.

The underdrive pulley is 4 ounces less than the 3sx one you're looking at. Very minimal difference. Either rate, both pulleys weigh less than the stock one and definately make a noticable difference.

I'm telling you buddy, Nitrous is what you want if you want cheep & easy power. Plus, you don't need to run it all the time, and it's there when you need it.

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06 Blue EVO 9

Thanks everybody. What would be the ideal Nitrous Oxide System then? I am still just wondering I will do a compression test also before (If my dad even lets me) add nitrous.

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She's my baby!

~Woody...