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16 Posts
Hey guys, i need to replace my cylinder and piston so im going to be getting a cylinder works big bore kit 727cc. I was wondering what compression ratio i can get away with without running into problems? Some people have told me 11.0 is the highest to go on pump fuel. However i've read in dirt wheela magazines that they've went up to 12.5.
Any feedback would be nice. I need some real answers here, not just speculation, im looking to buy in the next day or two..
Any feedback would be nice. I need some real answers here, not just speculation, im looking to buy in the next day or two..