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JDM H23A 5th gen swap

 
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Old 12-06-2012, 02:57 PM
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JDM H23A 5th gen swap

I just finished swapping in a JDM H23a vtec into my 98 prelude and I was just wondering if anyone knows what the redline is for this motor.
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Old 12-06-2012, 04:15 PM
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Re: JDM H23A 5th gen swap

7800 IIRC
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Old 12-06-2012, 11:47 PM
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Re: JDM H23A 5th gen swap

There is none lol just keep reving away.
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Old 12-07-2012, 01:08 AM
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Re: JDM H23A 5th gen swap

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Originally Posted by tmccoy View Post
There is none lol just keep reving away.
With the amount of work we put into it, i highly recommend you quit being a smartass and submit some useful information.
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Old 12-07-2012, 08:01 AM
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Re: JDM H23A 5th gen swap

Everything You Need to Know About the JDM H23A DOHC VTEC Motor

Peak power (stock) is 6800 rpm. My tuner (John Kerr at J-K Tuning) said it was safe to rev to 7500, but power starts dropping off after 6800.

Don't rev the crap out of it. It has a longer stroke than an H22; therefore, lower redline.



No replacement for displacement.

Last edited by schmitty915; 12-07-2012 at 08:04 AM.
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Old 12-09-2012, 02:55 PM
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Re: JDM H23A 5th gen swap

My motor just developed a misfire in the #1 cylinder. What could the cause of that misfire be?
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Old 12-09-2012, 11:02 PM
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Re: JDM H23A 5th gen swap

Quote:
Originally Posted by 98PreludeH22 View Post
My motor just developed a misfire in the #1 cylinder. What could the cause of that misfire be?


Have you changed your sparkplugs yet?


Also, have you checked the cap/rotor yet?




could easily be EGR related if not either of those.


did you ever check that balance shaft maintenance bolt and is the leak gone?



I never heard back on any of the above... do not let this go man, that list wasn't just suggestions, it's stuff that needs to be done.
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Old 12-10-2012, 02:05 PM
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Re: JDM H23A 5th gen swap

I just put new plugs in yesterday and im not leaking anymore oil. i do still have to swap the cap rotor and the egr valve. Im just waiting for some money to come in.
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