accordh22a

i am fixing to build an h22 for boost. i have been searching to see if anyone has had good luck with mahle or cp pistons on stock h22 frm sleeves. so far i have found only a small handful but none of them have many miles on the motors. does anyone know more about these sleeves?

BarelyBoosted

There is like a 11 page thread on honda-tech,(http://honda-tech.com/zerothread?id=1406865) about the mahles, It seems at first there was some isssues regarding the fitment of aftermacket rods but there fixed that and so far there haven't been any other issues.

Don't know much about the cp's execpt that people have had problems getting in touch with them.

drunkinmaster1

i think that theres been a few boosted h22s in here but the one that comes to my mind is jeffs built h22 ek
heres the link to the thread. https://www.homemadeturbo.com/forum/...?topic=26234.0

accordh22a

ya ive seen this post...but noone has any real miles on their set up. so i was hoping someone on here might. thanks for those links guys...very much appreciated

HMT-Admin

The actual size of the h22 sleeves are not so impressive, I'd say wait until you get your tax return and just sleeve it. I'd hate to throw rods and pistons in a block and 10k miles later the pistons are not sealing.

accordh22a

i will agree that the sleeves are not impressive. i want to get 300-350whp. thats it. i know you can do that with stock internals but i dont want to risk breaking a rod bolt cause those are one of the weak links including the ring lands. if i ever intend to get more boost i will sleeve it but for that much horsepower i really dont want to spend that much money if im running conservative boost at 8-9lbs. but i do want this to be reliable and long lasting so id like to get rid of the week links by installing pistons (better ringlands) and rods (replace rodbolts). plus make the bottom end much stronger

HMT-Admin

300-350whp on a stock motor isnt to far fetched, you kinda made me wonder about the H22 rod bolts so I ran out in the garage and took a closer look at them.



D16a/B18a B16/H22



As you can see the H22 shares the same style/thickness rod bolt as the B16a which are definatly larger than B18a rod bolts. I've ran a couple B18's around 300whp with no rod bolt problems, and we've also had a B16a running over 350whp on stock rods, so I honestly dont think the Rod bolts would be a problem. The actual size of the rod isnt to bad either, its not enourmous, however its fairly large and I dont see any reason why it would have any problems running 350whp. ITR rods are actually smaller than h22 and B18a/b's and I've seen a few people over 350 with them as well.

As far as ringlands, well.. theres no secret here, cast honda pistons are just not that great. It's all in tuning, I'll give you an example, our Global mod and NW tuner leed has a GSR completely stock bottom end and has been running 15psi on a SC61 (dynoed at 350whp) and has been running for almost a year like this, day after day punishing the ---- out of his car and they hold up just fine. It's just all in tuning.



It took dave a few years to fine the sweet spot of tuning though lol

If I was you, I'd turbo it stock and get someone who really knows how to tune and you will probably be pretty happy.

92H22acivic

i been running mahle 9.1 c/p pistons in my h22 for over 6 months put around 10,000km on it and it still runs fine had it at the track a few times to

accordh22a

wow guys thanks for all of this info. its very much appreciated.

about the rod bolts...i got that info from my tuner. he has tuned and built hondas for 8 years now. and that is where i got that lil bit of info from. he said that he has seen h22s go and it was either the rod bolts or the ring lands. so im just going to be safe and take care of both of those just for my own sake.

keep this good stuff coming.

to 92h22acivic

what is your set up?

accordh22a

anyone else?