Ok so I have been planning my h22a1 turbo build, I was a day or two away from ordering Mahle FRM friendly pistons, then I did more reading I read they have a 50/50 chance of making it to 10k that made me weary.

So my question is will dry sleves be ok for 400WHP (at very most)? I see the darton MID’s are more expensive and my local machine shop (who will do free engine work for me) cant do MID’s but they can do dry sleeves.

So who has had luck or seen somone run dry sleaves in a h22a1 and been successful?

 

yes they will work just fine, you have to understand that the only reason for the mid sleeves is if you had a open deck design like the h22a4 motor. then it would give the support it needs for the top of the cylinder. for the closed deck h22a1 the design of the block is very capable of handling high hp. it just needs the dry sleeve installed to allow the use of pistons that can handle the power that the block is capable of.

so to answer your question if it is a reputable machine shop installing them you will have no problems. i have personal experience of la sleeves, and darton dry sleeves.

 

Thank you very much for the to the point answer it is much appreciated, this is perfect.

On http://www.importperformanceparts.net/ they have the sleeves nice and cheap different wall sizes, I was wondering would it be better to have the thicker sleeve or more re enforcing material in block? I’m thinking the 3/32” are proper.

 

yes i know this thread is old.
ive been searching and there is not a ton of info on dry sleeve setups.
anyone have anything to add?
strength?
longevity?
whp capable?

 

ttt

 

what is there to add? if you have ductile iron sleeves, it'll handle whatever abuse you want to throw at it.

strength: plenty of it, I wouldn't worry about the sleeves exploding at 600+whp. definitely not the Achilles' heel.
longevity: if there's nothing wrong with the motor it won't fail.
WHP capable: depends on the tune/setup. people have made insane numbers on stock FRM sleeved blocks.

 

thanks for the info dagle