i was wondering have any one here did a 500-600 whp h22a turbo wtih stock head but wtih just forged rods and pistons and big turbo?

 

I highly doubt it. With the amount of boost required for that kind of horsepower, the stock valve springs wouldn't be nearly strong enough to close the valves. You'd have overlap like a ************.

 

I know a couple of guys running that sort of power on stock heads and built blocks.


Modified by Nakajima at 3:58 PM 12/10/2005

 

Stock as in bone stock or stock as in non ported but upgraded valve train?

 

there was a 548whp stock h22 motor tuned on neptune.

john d puts out 400whp and 300wtq with a built block, stock head, stock ignition, equal length mani, neptune, pt61 turbo, 10psi

 

The Joubert Brothers are big in the drag racing scene here in South Africa.
They mostly use H22 motors with heads that are "totally stock in every way" - that's quoting them.
The blocks are fully built though.

Charl Joubert's mid engined rwd CRX with H22 motor recently made 766whp and 772nm.
He consistently runs 9 sec flat 1/4 miles. Traction remains a problem with that car though.

I've also been for a ride in a 500hp 5gen Prelude that has a completely stock head.

 

i dont see why not..ive seen a bunch of ppl make that power witha stock head ..what kinda turbo?

 

with valve train absolutly,,,,,,,,,,,,,,, without valve train i cant see 600 maybe 500

 

well, i believe it is possible, but the valves and springs will take a beating.. those are the numbers i am going for, a fully built block, and stock head.. ill see in the summer

 

Whatever happened to doing right the first time?

If you know you're going to kill the head eventually, why dont you take precautionary steps to prevent it?

Bleh...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hank the retard &raquo;</TD></TR><TR><TD CLASS="quote">Whatever happened to doing right the first time?

If you know you're going to kill the head eventually, why dont you take precautionary steps to prevent it?

Bleh...</TD></TR></TABLE>

agreed ,i got a set of supertech valves brand new in box never opened that i will give ya a good price on to prevent head aches later ,,i wish i had acouple thousand dollars to throw away.when that valve goes your motor is a wrap!!!

 

The turbos they use are kind of secret but I've been told it's a modified T66 running very high boost.

 

here is john d's setup on a h22
http://neptune.evans-tuning.com/viewtopic.php?t=84
here's another
http://neptune.evans-tuning.co...t=153

i like neptune and what it is doing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nakajima &raquo;</TD></TR><TR><TD CLASS="quote">I know a couple of guys running that sort of power on stock heads and built blocks. </TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JSPECunit &raquo;</TD></TR><TR><TD CLASS="quote">i dont see why not..ive seen a bunch of ppl make that power witha stock head</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by flight50 &raquo;</TD></TR><TR><TD CLASS="quote">here is john d's setup on a h22
http://neptune.evans-tuning.com/viewtopic.php?t=84i like neptune and what it is doing.</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nakajima &raquo;</TD></TR><TR><TD CLASS="quote">The Joubert Brothers are big in the drag racing scene here in South Africa.
They mostly use H22 motors with heads that are "totally stock in every way" - that's quoting them.</TD></TR></TABLE>


nice posts about "I know a guy" or "I've read about this guy"...


but none of you have done it yourself. Is it possible? Sure, but it's incredibly cheap and stupid to do. It won't run nearly as well as it could with a little bit of oh, I don't know, some PROPER ENGINE BUILDING.


And when it breaks, and it will break, I will laugh at you for spending the money to build a block, but being a cheap-*** when it comes to building the head.

Still, some people will only learn the stove is hot by burning their hands...

 

WOW! my friend had a h22 turbo hatch with a 92-95 head and a 97 block with a t4 turbo on race gas with aem and he put 515 wheel down. but its not gonna be a daily driver i tell you that much.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cntcdis &raquo;</TD></TR><TR><TD CLASS="quote">WOW! my friend had a h22 turbo hatch with a 92-95 head and a 97 block with a t4 turbo on race gas with aem and he put 515 wheel down. but its not gonna be a daily driver i tell you that much.</TD></TR></TABLE>

OMG!!!

 

here's over 600 stock head
https://honda-tech.com/zerothread?id=1249801&page=1

 

Yes it can be done to answer your question as easy as possible. But if you want this to last its a simple matter of putting in stainless valves. This is incase of detonation or going lean while tuning and not burning a stock valve which is very easy especially @ high horsepower #'s. I would also recommend that you upgrade you springs and retainers also to hold the power and also incase of a miss shift or just over reving the engine which I have seen over and over. 500 whp @ one time is going to blow the wheels of especially your first time driving it and you will be banging the rev limiter before you know it. Just my 2cents but what do I know

 

Yes you can get that much power on a stock head but would add titanium retainers. We made 590 whp with this set up. Ran 788 whp with this set up and skunk 2 exhaust valves. Now is this smart? Well you run with what you have some times untill you can afford to upgrade. Our stock springs crapped on us at the NHRA St. Louis event. Now we are running Super Tech valves, retainers and springs with no problems - highly recomend super tech. Good luck.

Steve Sr.

 

thanks steve and what you think about earl benson doin the sleeving and buildin my bottom end?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by superjunprelude &raquo;</TD></TR><TR><TD CLASS="quote">thanks steve and what you think about earl benson doin the sleeving and buildin my bottom end?</TD></TR></TABLE>

Best in the business.