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    Dual engine for 2 speed action?

    I've had this idea for awhile now but never knew if it would work or not. I love the idea of having a general gear (for 0-30mph) and then having an overdrive gear to pull you to 45mph. Would it be possible to mount two engines side by side and have both of them connected to the axle with...
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    Confusion about increasing engine size and it's effects on acceleration and top speed

    So, I'm purchasing a kart (off-road two seater torque converter) very soon and have some go kart knowledge under my belt. I know that when engines are governed, they run at 3600rpm. Top speed and acceleration is determined on the gear ratio. A small gear ratio will accelerate quickly but have...
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    Predator 212cc hopped up, or stock Predator 346cc with warranty?

    I've got some plans in the works to get a off-road kart with lots of power (10-15hp) and I have became stumped by a recent realization. I have seen that many people go with Honda clone Predator engines from Harbor Freight. Having bought a clone 7 years back for an older project (when they were...
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    Butterfly valve for switching to straight exhaust.

    Those butterfly valves in cars where you flip a switch and the valve directs exhaust flow away from muffler and into a straight pipe. Has anybody done this?
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    6.5hp Kohler performance parts, or new Predator engine?

    I am returning to the beautiful world of Go Karts with much newfound cash, but obviously wanting bang for buck. The kart comes with a 6.5hp Kohler engine. For the longest time I had my mind set on a brand new Honda GX390 (http://fayar.craigslist.org/for/3811329971.html if you're interested) for...
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