What engine to put in my go kart.

[CMsoccer21]

well for me, its not fun if its not fast. i mean i have like 3 snowmobiles, a dirtbike, 3 other go karts one of which is a twin engine, atvs and all that kidna stuff and most of those things go over 50 or 60 so i wanna make this thing fun, not a drag compared to my other toys.

and by the way wats wrong with 32 lb springs

 

[Kenny_McCormic]

They suggest you want to turn very high RPMs.

 

[modelengineer]

Bah, I'd take acceleration and handling over speed any day!
POWERSLIDES are where the fun is at!

... having said that, powerslides are more fun at higher speed.

 

[CMsoccer21]

well im not gonna over rev it... some of the stuff im getting is just incase. i dont wanna blow something. im not gonna run the rpm's THAT high.

 

[jr dragster T]

Well the only springs I have seen that go into a 390 are 32 pound springs. Remember heavy springs suck up HP and they put ALOT of stress around the lifter area.

 

[CMsoccer21]

ya i havent seen any other springs in a 390 either. i guess i could try 26 but i dont really wanna get valve float....

 

[spude33]

In my opinion go with a 2 stroke dirt bike engine. A 125 or a 250 would really get you moving, plus they have alot of bottom end for good drifts. But if you go with this choice you will most likely have to mix fuel for it and it sometimes gets expensive. that is my opinion, and i love sliding around turns and going fast so ya....think bout it.

 

[Russ2251]

if you go with this choice you will most likely have to mix fuel for it and it sometimes gets expensive. that is my opinion

Opinion noted, however, the math reveals some facts.
Pro-Honda high performance synthetic 2 cycle racing oil is $6.99 for 16 ounces.
This translates to 4 gallons of mix from 1 bottle or less than $1.75 additional per gallon.
I swear by this stuff and highly recommend it.