TommyMAn

hi, i have a Accord CD7 with H22a swap done to it.

now its time to boost it...
im goin for 400hp in the motor.

the question is, do i have to sleeve it?

or is it enough with new pistons n valves ect. ?

thanks

TommyMAn

no one?
How much hp does h22 handle with stock cylinder walls?

NonovUrbizniz

https://honda-tech.com/search.php?searchid=5145409

https://honda-tech.com/forums/showth...&highlight=h22

https://honda-tech.com/forums/showth...&highlight=h22

https://honda-tech.com/forums/showth...&highlight=h22

Search dude there are 2000 threads on this

atec

We have done 362whp on bonestock h22 engine, that is stock sleeves, and stock pistons etc.
And 321whp on a high comp JDM H22 engine.. both held fine..

If you can get semi forged pistons that will work with the FRM sleeves the h22 has, do that and get a decent tune.

The worst thing that can happend is really a valve drop. it will totally ruin your engine, while a cracked sleeve is just about replacing pistonrings and the block itself.

Turbo-LS

iTrader: (4)

400-500whp on stock sleeves is fine with a good tuner, any more than that your pushing the envelope.

TommyMAn

ok, i am goin to install new forged pistons and valves, springs. and i have Hondata S300.

so i am on the "safe" side with good tuning..

but i`ve read that if i change to forged pistons, i also have to change Sleeves too...


btw, i have searched.. so im no noob at that..
have been member on hondasociety since 2006..
my car

Turbo-LS

iTrader: (4)

you do not have to change sleeves just have to overbore the cylinders 0.5mm over stock size basically buy a pistons that is .5mm larger than stock and bring the block to a reputable machine shop and have the cylinders bored/honed to matc the piston with at least a .0030 ptw

0Sales@Bisimoto.com

sent you a pm with some info on pistons for you if you choose not to sleeve the block

NonovUrbizniz

I really wouldn't worry about touching the valves or springs... it's just not required for the power you want.. I mean if you have money to burn then definately but if you're trying to be cost effective then I wouldn't bother...

Also as mentioned above you can get VERY close if not to your goal on a BONE STOCK block... maybe it would be better to wade in and just turbo the motor as is and see if you really want to up the boost/power from there... then you can decide if you want to rebuild the bottom end.

I spent a summer in Stavanger on the west coast of Norway (my mother is from Oslo) Beautiful coastline and AMAZING girls!

Good Luck.

CerealKiller

Ain't the tolerances of forged pistons and the FRM sleeves different?

0Golden Eagle

you should never run a forged piston in a frm block they need to be sleeved to run forged pistons. mahle does make pistons for frm blocks thats what you should use if your not going to sleeve it. if you decide to use the forged pistons and not sleeve it good luck because it will not last

LudeLooker

Golden Eagle speaks the truth, I would not even consider trying for 400whp on stock block, it's not the sleeves that are the problem on H22's it's the ringlands, and I wouldn't expect to make more than 300whp on one stock, above that I would expect the ringlands to crack in no time, and if your going to boost it you will eventually want more power so honestly I would just sleeve it and do it right, otherwise you might have fun for a while with the stock block but eventually it will fail

DA TeG 90

after 500whp is when I would start to think about sleeving. Golden Eagle, Benson, Dartion are what most use on here. I chose to go with Benson sleeves, but what ever you want really.