H22 rod strength...? - Honda Prelude Forum

Turboextacy · 11-26-2009, 11:48 PM

too what hp are stock, non-treated h22 rods good for? if it matters its for an obd1 jdm h22a.

Artifex · 11-28-2009, 08:52 PM

I don't think anyone knows. Rods aren't really the weak point anyways.

CA121 · 12-02-2009, 12:43 PM

what is the week point of the std engine

Artifex · 12-02-2009, 12:55 PM

Quote:

Originally Posted by CA121

what is the week point of the std engine

"STD" engine? Not sure what you are referring to.

The pistons are the weakest point.

akprelude · 12-02-2009, 08:56 PM

Ringlands to be exact.

Mike95lude · 12-03-2009, 11:47 AM

Quote:

Originally Posted by Artifex

I don't think anyone knows. Rods aren't really the weak point anyways.

Exactly. Plus you have to define what "good for" really means. How much they are "good for" would largely depend on the kind of usage (track vs. street), how many miles before problems arise, etc.

Turboextacy · 12-04-2009, 11:45 AM

ok. unless its turbo'd, s/c, or on a big shot, they rods will hold up too most bolt ons correct?

CA121 · 12-04-2009, 02:27 PM

sorry, std is short for standard or stock

willybv · 12-08-2009, 12:37 AM

Correct. As our Prelude guru stated, the piston ring lands are the weak point in the motor, but they will hold up to any reasonable NA build. Detonation kills H22 ring lands so if you can avoid that, you're good up to maybe 300 hp for a track/strip motor, and maybe 260 for a street motor. As they say, bad tuning causes engine failure, not hp levels. As far as bolt ons go, get a good IHE combo, then look at porting/polishing, cams, valves, etc. Just be sure that you know where you want to end up with the motor and you'll be good.

IAPrelude · 12-19-2009, 05:12 PM

I remember reading an article in SCC several years ago that spoke about the strength of different import engines. The author was very technical in his analysis, which suggested he knew what he was writing about. Anyway, he called the H,K & F Honda engines bulletproof and more than capable of handing sizable increases in power with stock internals- assuming proper tuning. By contrast, he called the D series engines weak by comparison and in need if internal work before big increases in power could be considered. He also raved about Nissan's SR-20s.

harmonichonda · 01-04-2010, 08:20 AM

all depends on age of the car imo

Stock blocks have been used to 9k rpm though, not on a daily basis.
But IA is right in saying the H block is pretty tough, but still not as tough as it could be with 2, maybe 3 + thousand dollars invested in it.