Saosinx

As stated above, I'm about to swap a jdm h22a into my 95 f22a1 lude. I've been doing a lot of searching and have fun a lot of useful things. I'm just going to give a run thru of what i know, and i would really appreciate if anyone could start filling in the details. Let me start out by stating what I know and have.

-the engine.
-i'm going to be using my tranny that has a new exedy stage 1 organic clutch kit and new flywheel. i know i should get a new OEM tob and lube it up when i change it over.
-reusing the f22 motor mounts
-have new axles replaced 7k miles ago for the f22 that will work i think?
-i have a p13
-went to the junkyard and got some ecu wiring harnesses to do the procedure for "running vtec." (as stated in the essential links)
-i know i will have to change the f22 fuel rail over to the jdm h22a and use the h22a injectors, but am i missing something there? like the fuel pressure regulator?
-i read about how i can use the f22 coil but need a usdm h23/h22 dizzy that'll plug right in or i can wire up the jdm h22 dizzy to work but i haven't found anyone to state how this is done

what other steps am i missing and what other things need to be wired to the ecu. any help and pointers would be greatly appreciated.

Sao

Saosinx

bump

Dongoesby

sorry, i'm not throwing any helpful information, but i just want to say that HT has been becoming not as helpful as before. People either don't post any constructive replies anymore or tell you to search search search because every questions are noooob questions~ People don't know, thatz why they ask, if anyone who are posting here just to tell the person to search, why don't he or she just don't post anything and let the thread disappear.

Hope you can get the information you need in here.

DAHOTTESTLUDE

agree nobody is really helpful anymore.... either very sarcastic or tell you to search! kind of gets old!

Saosinx

i hear you guys.

SKDRCR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DAHOTTESTLUDE &raquo;</TD></TR><TR><TD CLASS="quote">agree nobody is really helpful anymore.... either very sarcastic or tell you to search! kind of gets old!</TD></TR></TABLE>

You've been here pretty long to say that huh

Use your jdm h22 fuel pressure regulator.

I would get all new injector o rings too.

I would change out the clutch, timing belt/manual tensioner conversion, water pump,
hondata im gasket, all that good stuff while the motor is out of the car.

The f22 tranny will work but the gearing isn't the best for your jdm h22 setup.

my9thtry

i think you will also need to wire up some additional sensors knock and something else i cant remember. actually if you just unplug the whole engine harness and use the new one if you can it wont matter ... i think

flyrod

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DAHOTTESTLUDE &raquo;</TD></TR><TR><TD CLASS="quote">agree nobody is really helpful anymore.... either very sarcastic or tell you to search! kind of gets old!</TD></TR></TABLE>

This sentiment has been covered numerous times already. Please search!

Saosinx

oh dear, another "search"-er haha
and what do you mean, SKDRCR, about the gearing being not the best?
and i don't think i need to change the clutch and flywheel, as i stated above, i just changed it. and you are sure that i should use the jdm fpr? cause i've read that i should switch over the f22 one...
and does anyone know of a thread of how to wire the knock sensor? i have read that you shouldn't use the harness for the jdm h22a, i should just use the f22 harness and extend/run the extra wires (like the 2 wires for vtec)

and i appreciate the help thus far guys.

soundbomber

were you planning on just reusing your f22 wire harness? i say find an h23 or h22 one just to save yourself the trouble

Saosinx

i was planning on it only because i'm not sure how to go about getting a h23/h22 harness... and i'm sure running it would be a pain. if i'm wrong in this assumption, please correct me.. and point me in the way of getting a h23/h22 harness... the only prelude at my local junk yard has the ecu harness cut.. (nope that wasn't me i sware )

soundbomber

i have both h23 and h22 engine harnesses, i might keep the h22 one, i'll let you know if the h23 one is going to be fore sale, i was planning on lengthening it etc...

MadCityLude

You can use the F22 harness, but finding an H22a1 would be ideal! I did this swap using the F22 engine harness, but it did require quite alot of extending do to the larger motor size. You can find them on ebay and even hear on HT every so often.

Saosinx

thanks man. my motor will be in by next friday, so if you know by then, shoot me a pm. i'd love to get it from you! ps. how hard is it to take out my wire harness and put that one in? it will envolve the stereo and ac/heat wires too won't it?

soundbomber

no it unplugs right at the shock tower/firewall area....and unbolts from your motor.

Saosinx

oh well then crap. let me get that crap up off you haha

MadCityLude

You should try and find an H22 harness first! If you can't find one then I suppose you could get an H23, but I wouldn't waste my money!

Find an H22 harness!!!

Saosinx

do i need a jdm or usdm h22 harness or does it not matter?
and also even if i have the h22 harness, i will have to run the wires from the ecu to the harness right?

MadCityLude

Not JDM! It is all backwords.

USDM only! Your car being 95 may have wiring ran somewhere for VTEC.

My 92 didn't as it never came with the VTEC option.

soundbomber

no you won't need to run wires from the ecu to the harness, maybe vtec, maybe not. search to see which plug you're looking for and go from there.

Saosinx

i'm pretty sure that in the thread i read once before about the vtec being prewired, they came to the conclusion saying that if there's an h23 in the motor, you have the vtec preran. if it's the s (f22) you don't. so regardless, i'm running the 2 wires for the vtec:

https://honda-tech.com/zerothread?id=1004852

Saosinx

also no one has commented on the dizzy stuff. anyone know anything about this?

Finest

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Saosinx &raquo;</TD></TR><TR><TD CLASS="quote">
-have new axles replaced 7k miles ago for the f22 that will work i think?
-i have a p13
-went to the junkyard and got some ecu wiring harnesses to do the procedure for "running vtec." (as stated in the essential links)
-i know i will have to change the f22 fuel rail over to the jdm h22a and use the h22a injectors, but am i missing something there? like the fuel pressure regulator?
-i read about how i can use the f22 coil but need a usdm h23/h22 dizzy that'll plug right in or i can wire up the jdm h22 dizzy to work but i haven't found anyone to state how this is done

what other steps am i missing and what other things need to be wired to the ecu. any help and pointers would be greatly appreciated.

Sao</TD></TR></TABLE>

1) You can reuse your Accord axles.
2) Use the F22 fuel rail. The JDM H22a feed port is on the wrong side. You can swap in the JDM FPR on the F22 rail. And obviously swap in the H22a injectors.
3) Distributor: There are 2 methods. Use the JDM dist and rewire it. Or swap in an H22a1/H23a1 distr for plug and play. Personally, it's easier to go with #2 since rewiring the JDM dist can cause idle issues.
4) You need to run 4 wires. VTEC pressure switch, VTEC solenoid, IAB, and Knock Sensor.


CB7Tuner.com has a nice H22 swap FAQ. Read up and throw that sumabish in!

Saosinx

you said accord axles? it's lude, so i'm just making sure it's the same haha

Finest

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Saosinx &raquo;</TD></TR><TR><TD CLASS="quote">you said accord axles? it's lude, so i'm just making sure it's the same haha</TD></TR></TABLE>

I just swapped in an H22a into a 4G Accord this past weekend, so I don't know why I thought you had an Accord, LOL!

But you'll need Prelude axles, since the Accord axles are tad shorter.

I put an H22a4 into my 95 Lude Si, so it's basically a drop in. My chassis even came wired for VTEC!