Woud this work??
 

I'm looking to maybe buy some Mahle pistons for my H22. Now I know that the bore is 87mm, but would it work if I bought some 87.25mm pistons just to be safe in case my cylinder walls are bored out a litttle. Would the .25mm make a huge difference if the bore was still 87mm. I'm guessing yes it would make a difference and that maybe I should get them measured just to be sure, but if anyone has any other advice??

Re: Woud this work??
 

I've always heard that if you put forged pistons in an H22, you have to sleeve it. Somebody will confirm this or just say I'm a dumbshit.

Re: Woud this work??
 

you cany use .10 over pistons in a stock bore, it would need to be .10 over, but since you cant bore stock frm sleeves, you are fucked out of luck.

mahle pistons are ---- anyways

Re: Woud this work??
 

have fun sleeving that ----.

Re: Woud this work??
 

Why do you say there ----? Any evidence or just word of mouth?

Re: Woud this work??
 

Actually Mahle pistons can be put into the FRM sleeves, if you read up on them you will see that they won't mess up the sleeves, that's why I'm posting a thread about them, because I know that FRM sleeves and forged pistons are a bad combination, but Mahle has a good rep or this. Do you know of any other pistons with a 9.1 compression that would work without having to re-sleeve?

Re: Woud this work??
 

no ---- mahle pistons are for frm sleeves.

do you not read up on h-t? none of the mahle pistons ft correctly they are junk,

and no, you can not bore frm sleeves.

honestly, a stock block h22a is useless, boost it as is, and hope it holds together

Re: Woud this work??
 

I know that you can't bore frm sleeves, I never said that I could, and I don't know why that ever came up. Anyway yeah I did read up on h-t thread and if you read all the posts there was a common agreement that Mahle pistons would work, for how long?? I don't know, but others have used other pistons without any problems. So no I won't boost it as is, but thanks for the advice I guess, very non-productive, but the effort was there.

Re: Woud this work??
 

I dunno silly thought, but it may have come from this...

Re: Woud this work??
 

id like to just throw in from a machinest perspective the sleeves are borable but honostly youd be best off finding a small machine shop and just haveing them sleeve the block any compatent shop will be able to do it also good time to bore those sleeves and have the block resurfaced and acid bathed just a thought

boring frm sleeves .25mm is very doable wether you say no or not its do able at a compatent shop but be carful at such an incrament can be fucked up very easily