Bore size

[electricguitarlover21]

Well so I finally got my parts ordered in to rebuild my top end finally and get some power back. i bought a wiseco piston, and tomorrow i'm having my cylinder bored to fit the piston, i am going .04 over, if i'm correct this brings it to a 240? i dunno, well anyway, i wanted to go bigger, but i was informed that if you go too big then it won't make much of a difference. is this true? what are your thoughts on putting in bigger sized pistons?

 

[tjsdaname]

that will only bring it to like 200cc's

 

[zero9912]

^^ lol

 

[blasterfreek30]

i think it will make it like a 196cc mabe, dosent give anymore power, u should go the smallest over bore as possible for future rebuilds, there is other ways to get noticble power gains, u should know this with the port and polish thats in your sig

 

[89custom]

DO NOT go bigger than whats needed, adds very little power, but wastes cylinder life. i belive the max overbore is .090.

 

[bkg479]

inorder to go to a 240cc you would have to go to 72mm, and the only way to do that is to get a different cylinder. A stock cylinder can only go to 68.25,like 89 said you are going to waste you cylinder life if you bore it more over than necessary.

 

[pportera]

If its your first rebuild you should just hone it an go back .STD bore.

***a 240 big bore head,vitos,phantom7 etc... is diffrent then just "wholloing" out your stock cylinder***


The Cylinder is like a cat, kinda....you only got 9 lifes to live, so why jump from first to six!!

 

[wrench man]

At .040" (1.0mm) over your Blaster will be a WHOPP'N!!! 201cc's!!!!!, the 72mm 240 kit bring them to 232 cc's