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H23 VTEC or H22a?

 
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Old 10-03-2013, 01:32 PM
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H23 VTEC or H22a?

Im currently piecing together a turbo kit for my car and I know the A4s dont hold up well to boost, so I was thinking about selling it and swapping in either an H23 VTEC or an H22a. Which would hold up better to boost on stock internals? I'm hoping to make ~300whp. Thanks!
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Old 10-03-2013, 02:30 PM
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Re: H23 VTEC or H22a?

all 3 use FRM sleeves and have weak ring lands
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Old 10-03-2013, 03:07 PM
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Re: H23 VTEC or H22a?

go h22 bro. easier to find what you need
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Old 10-03-2013, 04:04 PM
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Re: H23 VTEC or H22a?

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Originally Posted by M0B5TA View Post
all 3 use FRM sleeves and have weak ring lands
I know, but I'm gonna be running low boost (7-8 psi)

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Originally Posted by H_seriesous View Post
go h22 bro. easier to find what you need
Correct me if I'm wrong but I'm pretty sure most h22/h23 parts are interchangeable, except for obviously internals.
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Old 10-03-2013, 05:11 PM
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Re: H23 VTEC or H22a?

running low boost means nothing.
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Old 10-03-2013, 11:03 PM
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Re: H23 VTEC or H22a?

you can run low boost on any engine, but you run the risk of blowing it...

if you want to run boost off a stock engine, then you should go with F series. not H

otherwise, save up and do the job right, dont just get something now because you want it now, you will loose reliability... but if you must go against this advice because you need to turbo your car on stock internals to look so cool to your friends y0, then go with F series.
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Old 10-04-2013, 12:47 AM
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Re: H23 VTEC or H22a?

Reliability is in the tune!!!!
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Old 10-04-2013, 02:57 AM
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Re: H23 VTEC or H22a?

But guyzzzz....I want boost nowwww
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Old 10-04-2013, 02:58 AM
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Re: H23 VTEC or H22a?

go big or go home
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Old 10-04-2013, 06:37 PM
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Re: H23 VTEC or H22a?

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Originally Posted by Vipers4Life View Post
Reliability is in the tune!!!!
Yes and no. A good tune will last longer because the fuel map is more efficient than that of a bad tune, but that still says nothing to the internals taking the force.

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Originally Posted by H_seriesous View Post
go h22 bro. easier to find what you need
An H23A VTEC is an H22 essentially, the only difference being the slightly larger mains in the H23A. The block and head are identical.

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Originally Posted by LudesRule01 View Post
I know, but I'm gonna be running low boost (7-8 psi)



Correct me if I'm wrong but I'm pretty sure most h22/h23 parts are interchangeable, except for obviously internals.
H23A1 non VTEC engines are the ones that are different but you are right the 23A and 22A/1/4 are the same, including internals. The problem isnt exactly that the ringlands are weak but the cylinder walls (FRM) are very tough and abrasive under pressure which causes the rings to get worn out fairly quickly. It doesnt matter if its 5psi or 10psi they all seem to last around 10-20k miles with a good tune before you start losing compression across the board. The motor will start to smoke under boost and you will start to feel the engine slowly losing power.

There is no real way to reliably boost these H engines without installing iron sleeves and forged pistons. To do that right will cost around $2500, more or less depending on who does it and what you use. Its a small price to pay for longevity sine a good turbo kit installed and running properly can cost almost twice that amount.
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Old 10-04-2013, 07:35 PM
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Re: H23 VTEC or H22a?

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Originally Posted by neonxiii View Post
Yes and no. A good tune will last longer because the fuel map is more efficient than that of a bad tune, but that still says nothing to the internals taking the force.



An H23A VTEC is an H22 essentially, the only difference being the slightly larger mains in the H23A. The block and head are identical.



H23A1 non VTEC engines are the ones that are different but you are right the 23A and 22A/1/4 are the same, including internals. The problem isnt exactly that the ringlands are weak but the cylinder walls (FRM) are very tough and abrasive under pressure which causes the rings to get worn out fairly quickly. It doesnt matter if its 5psi or 10psi they all seem to last around 10-20k miles with a good tune before you start losing compression across the board. The motor will start to smoke under boost and you will start to feel the engine slowly losing power.

There is no real way to reliably boost these H engines without installing iron sleeves and forged pistons. To do that right will cost around $2500, more or less depending on who does it and what you use. Its a small price to pay for longevity sine a good turbo kit installed and running properly can cost almost twice that amount.
Of course internals are going to take force whether it's stock or built anything can happen, but there is a major misconception about people stating that "oh it's stock it's gonna blow"...false. With the proper tune and monitoring, you can have a nice boost setup on a stock motor. My co worker has a 700whp civic on stock sleeves that has lasted him through 3 seasons with no issues.

Also the H23A does NOT have the same internals as the H22A/1/4.
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As much as I'd love to see this done, I offer you the same comment I offer everybody else: There's no point in being the first to do something if you're second across the finish line.

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Old 10-04-2013, 07:43 PM
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Re: H23 VTEC or H22a?

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Originally Posted by Vipers4Life View Post
Of course internals are going to take force whether it's stock or built anything can happen, but there is a major misconception about people stating that "oh it's stock it's gonna blow"...false. With the proper tune and monitoring, you can have a nice boost setup on a stock motor. My co worker has a 700whp civic on stock sleeves that has lasted him through 3 seasons with no issues.

Also the H23A does NOT have the same internals as the H22A/1/4.
It does, the only thing thats different is the crankshaft. Not to mention civics come with Iron sleeves stock like the F series so thats not a fair comparison. Yes, you can monitor the engine and see when the AF is starting to change due to your compression loss and stuff like that but still, good tune or not, stock H series dont last if you drive it the way it was intended. If you put a turbo kit on it, you want to DRIVE it, not baby the car everywhere.
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Old 10-04-2013, 08:05 PM
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Re: H23 VTEC or H22a?

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It does, the only thing thats different is the crankshaft. Not to mention civics come with Iron sleeves stock like the F series so thats not a fair comparison. Yes, you can monitor the engine and see when the AF is starting to change due to your compression loss and stuff like that but still, good tune or not, stock H series dont last if you drive it the way it was intended. If you put a turbo kit on it, you want to DRIVE it, not baby the car everywhere.
Right there you're wrong the crank is different so it's not the same! Also the rods are not the same either. It may not be a 100% comparison but, I'm making a point that this boosting on a stock motor will blow it up is bs! Any boosted motor will eventually fail in some way, stock or built. "drive it the way it was intended"?? Are you serious dude? Nobody is going to be in boost all the time or they will not have a license. Daily driven can and is done on boosted stock motors, including H's that I know of. Can I prove that here? No, and I won't waste my time anymore.
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Old 10-04-2013, 08:18 PM
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Re: H23 VTEC or H22a?

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Right there you're wrong the crank is different so it's not the same! Also the rods are not the same either. It may not be a 100% comparison but, I'm making a point that this boosting on a stock motor will blow it up is bs! Any boosted motor will eventually fail in some way, stock or built. "drive it the way it was intended"?? Are you serious dude? Nobody is going to be in boost all the time or they will not have a license. Daily driven can and is done on boosted stock motors, including H's that I know of. Can I prove that here? No, and I won't waste my time anymore.
In my original response I stated that the mains were different. I have fully built an H23A1, had boosted H22's and have all failed in their own ways. I am only posting my experiences. I daily drove my boosted H22A. How many boosted H's have you personally dealt with? I suppose I was being a bit general in saying "they are all the same". I should have said they all respond to boost the same. They will all fail, and a lot faster than an iron sleeved B series for instance. I challenge you to find a boosted H series, bone stock internals, that has lasted much longer than 20k miles. It just doesnt happen. Thats why the FRM sleeve issue is a known problem with these motors because even without turbo they fail with abuse. Its just a sad reality with H series.
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Old 10-04-2013, 11:54 PM
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Re: H23 VTEC or H22a?

I did come across this awhile back...

http://www.preludepower.com/forums/s...d.php?t=281808
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Old 10-05-2013, 11:35 AM
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Re: H23 VTEC or H22a?

other wise ur gunna be in mob5tas boat blowing his motor daily so he never comes to the park n shinez
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Old 10-07-2013, 10:10 AM
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Re: H23 VTEC or H22a?

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other wise ur gunna be in mob5tas boat blowing his motor daily so he never comes to the park n shinez
bitch I have never blown a motor. I lost my all motor h22a to the piston rings going ham on the FRM sleeves. even with low compression it was still running
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