how much boost?

[chicago]

but now that weve covered the whole sleeving thing; whats all this crap about crankwalk i keep hearin about? isnt there a way to safegaurd against this?

I have only heard things about crankwalk on 1st and 2nd gen eclipse,s
thats just my 2 pennies-haha.

[chicago]

just a side note:

if given a choice to build on i would DEFINITLY pick the F22 over the H22 (dollar/hp). for reasons i have argued time and time again on this board and every other

I totally agree.
I will help this quote:when u blow your h22 good luck trying to find,rebuild,and afford another one. but with are f22's we can go to grocery store and get one,and there so much more easier to tune.
enough said about that.

[cincy90h22]

but now that weve covered the whole sleeving thing; whats all this crap about crankwalk i keep hearin about? isnt there a way to safegaurd against this?

[cincy90h22]

yea i think i would agree w/most when said, "if you wanna make boosting an h22 worth it you should sleeve the block" and 10 psi unsleeved would be a safe level "but for how long is the real question"as d112crzy says, in which there isnt an answer untill your motor takes a shit. i think ill wait untill i can afford new pistons and sleeves along with a good p&p.

[92ex]

I dunno, I'm not a fan of turbo'd stock h22s, theres a couple of them running around here, but I don't trust the reliability/longevity of the motor. To each his own.

WOOT WOOT 1000 posts

[turboh22aakkord]

OH, and about the Mahle stuff... get out your reading glasses! but this is all you need to know about the "non sleeving" pistons...

http://honda-tech.com/zerothread?id=1406865

[Accord R33]

just a side note:

if given a choice to build on i would DEFINITLY pick the F22 over the H22 (dollar/hp). for reasons i have argued time and time again on this board and every other

[d112crzy]

Well, everyone can go on and on and argue about how much each engine has. But in the end, its not about how much it can hold, its about how long it can hold it. an h22 CAN hold moer than 10psi, shit, even 15. But again, its a matter of how long it can hold it, which all depends on how safe the tune is, how bad you rip on it and the initial condition of your engine.

[turboh22aakkord]

6psi would be kake for an h22.. 10 would be a good number to make some good HP ... but you better have it tuned really well with a standalone...(aka.. no FMU bullshit ) TUNNING IS YOUR FRIEND!

[Accord R33]

we have no idea how much the f22 can handle stock...

A valid point...

i still say at least 10psi for the h22 stock bottom end though

[92ex]

we have no idea how much the f22 can handle stock...

[Accord R33]

wouldn't the bad reputation come from people who have had problems with the sleeves under boost? I don't think I'm seeing it your way(I also just woke up)

keep in mind that people who are boosting H22s are usually not looking for 8-10 psi. Just like any other motor, they get boost happy, and keep turning the knob until trouble starts.

The original question was how much the STOCK h22 bottom end can handle, and in my opinion it can handle just as much as an F22 until it needs new pistons, in which case it wouldnt be a stock bottom end anymore and its a whole 'nother thread

[92ex]

wouldn't the bad reputation come from people who have had problems with the sleeves under boost? I don't think I'm seeing it your way(I also just woke up)

[Accord R33]

Kinda seems like your contradicting yourself... You say there stonger, but there thin that's why there bad... So overall, there not top choice for boost.

I never said they were bad. i said they have a bad repuation. In my opinion the whole "H22s are no good for boost" is just a myth. The only downside is that you have to resleeve to get new pistons. Until that point..you should be safe (assuming good tuning as always)

[92ex]

There not just aluminum..they are fiber-reinforced metal (FRM). Its probably stronger than iron (and definitly a lot less friction). The only drawback is that they are super thin, which is why they have a bad rep

Kinda seems like your contradicting yourself... You say there stonger, but there thin that's why there bad... So overall, there not top choice for boost.