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Hey guys, sorry if this thread already exists, I couldn't find one on here. If there is one, some direction to it would be appreciated. Anyway, I am considering doing cheap supercharger project on my kart, using most likely an old smog pump. I don't have one yet, I'm still in the early stages...

What's the best low rpm cam for a predator? I'm looking for a relatively cheap can that will give good torque below about 4200 rpm. I plan on upgrading to a billet rod and heavier springs, and hardened pushrods if necessary, but the stock governor is still in place, with the screw backed all...

I've heard some rumors that running a predator on E85 will help it run slightly cooler, or even pick up more power. But if that's the case, I can't help but wonder why that big warning sticker comes on the engine saying no E85. Will running E85 on the engine with no mods have any effect, good or...

Sorry if this thread already exists, I'm still pretty new here and haven't looked around all that much. Anyways, I recently bought a predator 212 for 120 bucks new from H.F., and I'm looking to hop it up a little, as it's still a little slow. I'm not looking to spend too much money, like <$30...

I recently bought a new predator 212 6.5 horse for a little single seat go kart of mine after dropping a valve and shattering a piston head on an old tecumseh. After break in and installation, it was noticeably quicker on acceleration, with a similar top speed. (Single gear driven, similar rpm...