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A Pair of '95 Ludes...H22 & H23 Swaps

 
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Old 10-09-2014, 01:09 PM
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A Pair of '95 Ludes...H22 & H23 Swaps

My title is probably not as clear as it needs to be but limited space. ;-)

Please allow me to lay out my situation in my effort to complete car # 1 utilizing both of my '95 model Preludes. Maybe this will be read by someone that has already done this and knows exactly what I need to be gathering to make it happen.

I have 2 4th gen cars. Both 1995. I have done the Wikipedia thing on these cars for a limited amount of basic info.

Car # 1
1995 Prelude Si 2.3L (H23A1)
Automatic
Apparently 9.8:1 compression
Chassis code BB2

Rod went through the block. Young kid's first car and he musta thought it was...well, who knows what he was thinking. One thing for sure, he didn't think about having to start walking after blowing it up. And with an automatic. I can't figure it out. It was a decent car. I want to make it that again.

Car # 2
1995 Prelude VTec 2.2L (H22A1)
Manual transmission
10.0:1 compression ratio
Chassis code BB1

This car was bought to resurrect the car # 1 by the previous owners BEFORE they investigated the differences of the cars involved. I'm sure they thought just an engine swap would do it. Obviously, it don't happen & now I am interested in completing one good car from the pair. This car # 2 was tapped in the back on one side and crunched it pretty good but all forward of the rear quarters is OK.

Now for the fun part. The engine swap has been made by someone in the previous owner's efforts to fix the original car # 1. The H22 VTec (manual tranny car) is now installed in the bay of the H23 Si (automatic transmission) car. There are boxes of harnesses and parts from the guy (?) that started the project. I'll have to sort & figure out what's what but any advice on identification of parts/items will be a chore I'm sure.

If I had my druthers and was involved back at the time in the early stages of this project, I would have just as soon clip the one car and put them together. Body work would've been easier than what I am looking at it seems. And with the VTec's apparent upgraded brakes and stuff, I'd prefer to have that car I think.

I'll shut up for a bit and listen to the gurus that might want to chime in. I certainly appreciate all advice/suggestions and that includes walking away but I'd rather see it through at this point. The VTec car had 51K on the clock by the way so I'm feeling it's a worthy engine to go ahead with.

Thanks for reading.
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Old 10-09-2014, 01:41 PM
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Re: A Pair of '95 Ludes...H22 & H23 Swaps

My son had a 95 with an H22 and an automatic...
Made amighty fine cruiser. Can be done if that's your choice.

Is the donor car running? (What you call #2)
Is car #1 running?
For about $50 you can buy an electrical manual at helms.com.
Very handy for wiring issues. Spells out each connector by number.
The service manual tells a lot about what plugs to where in the engine remove/install section or tells where said stuff can be found...

If you can find a person with a running 4th gen who'll let you photograph the engine bay from 85 angles that would help too. When I was doing a pair of 91's I used to use one (that was 100% original) as my go by when working on the one with a transplanted engine.

Patience of Job is optional...or some crappy tools for tossing.
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Old 10-09-2014, 08:58 PM
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Re: A Pair of '95 Ludes...H22 & H23 Swaps

Sounds like you're at the beginning of a fun project, but I'll still advise you to prepare for a little heartache here and there.

I'm assuming you're in this to have a fun car to drive around. Being that the H23 is pretty much toast, I would pull that and set it out of the way to begin with if you haven't already. The transmissions are interchangeable, so if you can confirm the condition of both without having a running motor, just decide whether you want the manual or the auto. On the car's side, the wiring harness should be the same so you can wire up the VTEC motor to the BB2 chassis without an issue there. The hard part you'd run into would be the 5-speed conversion, which there's numerous threads out there on. Is there a transmission already installed in the BB2?

The VTEC motor will require the ECU from the VTEC car- this is hooked up under the carpet at the front of the floorboard of the passenger footwell, possibly underneath a metal bracket about 12" by 18". There will be a few stickers with barcodes and numbers on the side of the ECU, you want to confirm that somewhere in there a 'P13' shows up.

Having the engine harness for the VTEC motor will also make things easier, should be pretty much plug & play. If you only have the H23 harness, you will have to wire the VTEC solenoid separately, which is an easy 2 wires.


I'd say start a build thread, open a Photobucket account, and share pictures with us like there's no tomorrow. A thingamabob next to a kajigger is just a thingamabob without a picture and an arrow pointing to it.
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Old 10-09-2014, 09:04 PM
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Re: A Pair of '95 Ludes...H22 & H23 Swaps

I started out with a 1995 BB1. I've recently swapped everything from it into a BB2 chassis, including the brakes, interior, and dash. The only difference was my BB2 had a 5-speed transmission to begin with.
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Old 10-09-2014, 10:16 PM
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Re: A Pair of '95 Ludes...H22 & H23 Swaps

Thanks a lot for the above replies. It helps to see a little encouragement with words like "plug n play". I realize it'll be more involved than that but I'm interested in tackling it.

@bykfxr...the donor car was running and fine with 51K miles on the car. It just got smacked in the gas hole a bit. I'm going to be using the H22 out of it. Matter of fact, it's already been installed in the # 1 car which is the BB2. Car # 1 had a rod through the block. No...it's dead...not running. Good suggestions about finding a running similar model car to take pics. I'll have to search that out too. I'm on the hunt for a factory service manual.

@Lindso...yep...the dead engine has been removed and has the VTEC installed in it's place. They kept the automatic. My preference would've been to keep the H22 and the mated manual trannie together and that is still a possibility later on. For now, and due to what I am looking at as it is now, I'll try to fish this out with the auto. So if the 5 speed conversion would be the hard part, I should be a step or 2 ahead?

I have access to both cars complete. Even the dead engine.

As for the Photobucket...I have an account and will be taking a load of pics once I get everything moved to my location. I actually am a transporter (cars) for over 40 years and have the benefit of loading them up and getting them where they need to be. It's just taking the time to do it. Sounds like a good winter project now that I am somewhat encouraged. I've had most everyone tell me to forget it...it was too much to figure out but I had a feeling somebody has been there & done that.

Thanks and I'm open for future suggestions. I may have (read that...WILL have) a load of questions later I'm sure.
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Old 10-10-2014, 03:09 PM
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Re: A Pair of '95 Ludes...H22 & H23 Swaps

your going to need the h22 wire harness for the vtec. your also going to need the vtec ecu, p13, the non vtec is p14.

i would do a manual swap on the BB2 if you are choosing that body. a writeup is in my signature if your interested.

the brakes can easily be put onto the BB2 for the bigger brake upgrade...

thats pretty much it, make sure to check fluids before attempting to start the car, you dont know how far those guys made it in the swap, so dont destroy your engine before you even get to drive it....
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Old 10-10-2014, 07:05 PM
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Re: A Pair of '95 Ludes...H22 & H23 Swaps

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Originally Posted by ProjectPrelude95 View Post
your going to need the h22 wire harness for the vtec. your also going to need the vtec ecu, p13, the non vtec is p14.

i would do a manual swap on the BB2 if you are choosing that body. a writeup is in my signature if your interested.

the brakes can easily be put onto the BB2 for the bigger brake upgrade...

thats pretty much it, make sure to check fluids before attempting to start the car, you dont know how far those guys made it in the swap, so dont destroy your engine before you even get to drive it....
Fantastic, ProjectPrelude. I'll definitely check out the 5 speed swap in your project pages. I'd prefer the stick myself. This project is looking more promising all the time.

I see you're in central Jersey. The cars have actually been at someone's place in south Jersey when my brother was trying to find someone who had the know how to complete what the first guys started and didn't finish. They sat there for quite a while and the guy was just too busy I guess...or that's the word that got back to me. Anyway, I am going to load both cars up on my car hauler and get them back to me here in the Bluegras and make it a winter project. They are sitting in Maryland just south of the Delaware line right now.
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Old 10-28-2014, 09:08 PM
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Re: A Pair of '95 Ludes...H22 & H23 Swaps

No snow yet, soooo..you've been able to work on this daily for the past month? :D
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