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USDM H23 to JDM

 
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Old 12-15-2008, 03:03 AM
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USDM H23 to JDM

i have seen all these post about the H22 swap or a frankenstein to make my lude vtec. just a quick question, why cant i just buy the JDM parts and put them in my USDM? the JDM comes with vtec stock and pushes 225hp where my USDM is 160hp and non-vtec. seems to me adding parts to the engine i have and getting 25hp more seems alot simpler than doing an engine swap. possible without too much trouble, or am i on the wrong track?
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Old 12-15-2008, 03:12 AM
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Re: USDM H23 to JDM

WELCOOOOOOOOOOOOOOOOOME TO PRELUBE ZONE!!!!! its nice to meet you!!!!!!!

what prelude model do you have??
what engine do you have??
where did you get 225hp??
what is you name??
did you read the new members tutorial??

Here is the awnser to your question and the how to guide- http://www.honda-tech.com/showthread.php?t=510617

But post some more info and we will be able to help yous out alittle tit more.
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Old 12-15-2008, 03:46 AM
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Been called Fryan for so long lets go with that.
bought a 92 prelude si for $3 runs like brand new, so at this time im not looking for an engine swap. this website list the JDM H23 as vtec was wondering if it was possible to buy the jdm parts for my usdm. ohh and i made a mistake it says the jdm is 230hp

http://www.tokyomotorimports.com/eng...23A%2096+.html

ohh also i have read alot about the H22/23 hybrid. it seems very possible but the results are unreliable

Last edited by hotrod; 12-16-2008 at 11:24 AM. Reason: merging back to back posts.
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Old 12-15-2008, 04:37 AM
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Re: USDM H23 to JDM

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it seems very possible but the results are unreliable
If you don't build it properly. Blake has the hybrid and it's reliable as can be.

You got a 92 Prelude for $3? That's a steal my friend.

And the H23 VTEC the website has listed...I'd assume it's the blue-top. The blue-top isn't an h22/h23 hybrid, it's an actual H23VTEC that was in the Accord SiR or something like that.
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Old 12-15-2008, 04:47 AM
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Re: USDM H23 to JDM

there we go the blue top, what keeps me from converting my engine to a blue top?
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Old 12-15-2008, 05:17 AM
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Re: USDM H23 to JDM

I don't think you would convert, just straight up swap your engien for the blue-top. Everything would line up with the swap, and all you would have to change was the ECU.
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Old 12-15-2008, 05:38 AM
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Re: USDM H23 to JDM

nothing keeps you from coverting it. Its a very straightforward way to go about it. The thing is your not going to find the parts seperately.. You will still have to pull the motor and literally do a rebuild. And, then your going to be making the frankenstein yourself with 3x the money in parts as a whole one and alot of wasted time. Then, its going to be only as reliable as you are skilled with H series Hondas. So, in essence it seems like a really bad idea logically.

Thats just the begining of the problems with your idea bud... Sorry. You will be better off with a h22 anyday.
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Old 12-15-2008, 05:52 AM
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Re: USDM H23 to JDM

3$?!?!!?!

dude if you want to invest in your car for performance i just finished reading a section of the new importuner mag....the g23 hybrid with K parts...........he spent 1,811 on the g23 bone stock 200+whp....OR invest in another 5 grand defintely 260+hp...and if you think about it..you spent 6k on a brand new lude.

but anyway welcome to the site
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Old 12-15-2008, 06:08 AM
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Re: USDM H23 to JDM

Thanks guys that's what i was wondering if it would be a pain. I assumed the only difference would be the head and vtec stuff. Figured the jdm head would work better than the h22 frank. You are prob right, h22 swap later and save myself the headache. They are really common around here. thanks for the fast responses.
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Old 12-15-2008, 07:13 AM
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Re: USDM H23 to JDM

Quote:
the g23 hybrid with K parts
Umm...What? What K-series parts work with H-series motors?
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Old 12-15-2008, 06:55 PM
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Re: USDM H23 to JDM

The parts are simply very hard to find and ship to you....
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Old 12-16-2008, 05:07 AM
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Re: USDM H23 to JDM

Quote:
Originally Posted by dbd6604 View Post
Umm...What? What K-series parts work with H-series motors?
no the k20 pistons fit on the f23 block..the H is the head.

ill quote what he said in the mag" The valve reliefs in the k20 pistons fit the h22 intake exhaust valves perfectly"
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Old 12-16-2008, 09:53 AM
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Re: USDM H23 to JDM

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Originally Posted by ImPorTuNeRdJ View Post
no the k20 pistons fit on the f23 block..the H is the head.

ill quote what he said in the mag" The valve reliefs in the k20 pistons fit the h22 intake exhaust valves perfectly"
Just because thats almost true, dont start confusing these guys.. I applaud you for trying to help, but this forum is full of newbies. Theres only a handful here competent enough to actually build something themselves and throwing out things like this only perpetuates disaster. Start an advanced thread if you wanna talk about the F23 block and K20 pistons. I mean honestly, the OP is asking how much effort it is to swap internals and thinks it would be easier to do this than just get the existing motor.
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Old 12-17-2008, 01:56 AM
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Re: USDM H23 to JDM

Quote:
The parts are simply very hard to find and ship to you....
Umm...Ok? Weird.

I just picked up the new 2NR, and I was reading about it, and the build he is talking about is more complicated than he puts on. He even says he had to custom fab stuff for it to work, so it's not cake like the magazine makes it out to be.

Quote:
Theres only a handful here competent enough to actually build something themselves and throwing out things like this only perpetuates disaster
So I shouldn't post because I've never built a G23 or an LSVTEC or anything? After all, it was just an idea that someone threw out there...no one said this is the only option for the OP.
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