As the title says, which one flows better? Thanking about just rebuilding my F22 (popped timing belt, drinks oil, eta) and was wondering if a H22 head swap would be worth it, or should I just get another F22 head. I’m going for a high-rev N/A build with N20 if that helps.
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Originally posted by EXkidd91 -
The F22A head flows better, technically. The ports of the H22 head aren't as free flowing, and the valve angle isn't quite as good, but the design still works well.
A headswap isn't a great idea though, unless you plan on building the bottom end completely.
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f22.build.....last much longer..h22 head words harder to keep up[COLOR=DarkRed][B]I LIVE ACCORDINGLY * 93 CB7
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this is probably some of the worst information ever handed out on this siteOriginally posted by 203CB7TUNER View PostComment
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Absolutely. The H22 head in stock form has no trouble "keeping up".Originally posted by 92jdm View Post
The issues with a headswap are usually due to installer error. Plus, the H22 head on the F22 block would result in a lower compression "h22"... which would achieve minimal gains at best over the stock F22A head. A properly modified F22A head will make more power than a stock H22A head on the F22A block, and there is far less chance of installer error, since the F22A head is made for the F22A block. No oil and coolant passages need to be blocked or modified.
The H22A's valve angle isn't as ideal as the F22A's, and the port design is a bit more restrictive due to the design of the VTEC system. The H22A head flows very well, but the F22A head offers plenty of potential.
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plus the h22 is higher compression. Bump the compression alone on an f22 and it'll gain some NICE power. Vtec isn't everything, these f22's are great!__
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G22
H22 head on an F22 block results in lower compression as stated before. This is ideal for a boosted application, hence the popularity of the G22-turbo.
If you only aspire to be naturally aspirated, then look into a full H22 swap. If your main seduction is forced induction, then look into the G22 or F22 boosted, c.f. Bisimoto.1997 Honda Accord EX-V6:
C27A4 - 2.7-liter 90º-V6 with SOHC, 24-valves, PGM-Fi
MPZA - Electronically controlled 4-speed automatic, 1 reverse
~170 cu. in. / ~170 ft. lbs. / ~170 whp
Originally posted by James MatteuComment
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From what I understand the head swap is pointless. Esp. considering the kind of power you can make from an F22A. 175 whp, stock block for way less than what it would cost to swap an H.
Originally posted by lordojaComment
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keep the stock motor then save up for what you wanna do later either buy another block build that for boosy or turbo . Or just get an h22 complete swap and call it a dayComment
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Great info, looks like I'll sick to the F22A head. A H22 swap would be nice, but I want to build a fast engine, not buy one
Originally posted by EXkidd91Comment
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Good idea.
Building a full F22 or full H22 is the best bet. The "G22" (I hate that... there IS a G series engine, and it has nothing to do with the F or H series) is pointless. The H22 head is no better for boost than the F22A head... you're only increasing your chances of blowing something up... which turbo already makes more likely! (this is mainly in response to James Matteu's post)
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clean up the bay and go boostSummer 11' Big plans (Bodywork/paint/rims etc..) in Progress STAY TUNED
CLICK THE PICComment
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Buy a Saturn.Originally posted by GearBangnAccord View Post
Like your comment, mine has NOTHING to do with this topic whatsoever.
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