mountainEG6

It's been a while every one. I will be scouting the forums and doing a lot of searching to figure this out. I ended up with a clean 95 civic shell that was given to me by a local friend and a wrecked but running/driving 96 integra that the same friend hooked me up with for $200. The plan is to swap the B18 over to the EG along with the integra brakes and possibly suspension.

95 Civic 2 door 5 speed
180k with rear disk swap and exhaust

96 Integra LS 5 speed
Car shows 145K motor and trans seem strong
I/H/E, suspension mods, and other basic bolt ons.

My goal is to use the civic as a fun little DD so I will not be going over board with mods. I figure a 140hp 1.8L is going to be a big jump from the soft non vtec D15 the car came with and should get good MPG.

Let me know what you guys think and any advice is welcome.

mountainEG6

Here is the integra body. I will get some from the civic in a few days but it's nothing crazy. Just a stripped down base model with roll up windows.

NotARaCist

iTrader: (1)

Basic, straight forward swap that'll give your car a decent little kick in the pants $200 for that car makes me wonder if there's something wrong with it aside from being wrecked - the motor and transmission usually go for twice that around here if you part them out. It'd be worth going over that motor and at least replacing all of the seals, the oil pan gasket, and the timing components while you have the motor out of the car. A quick compression test wouldn't hurt, either, and could tell you if the motor is on it's last legs.

And hey, you're only a couple hours from me

mountainEG6

One of my main issues is picking the ECU. I plan on using the integra engine harness and the EG6 Shock tower harness. I don't know if I should buy a jumper harness for the US OBD-2 ECU and then try to wire the second O2 sensor in. Or just spend the money and find a JDM OBD-1 ECU.

NotARaCist

iTrader: (1)

No need to make it more complicated. Just get an OBD1 LS ECU, or get a chipped ECU, get a stock chip from Xenocron, and call it a day.

mountainEG6

Thats what I was thinking until I fired it up and drove it about 5 miles on a back road. The engine seems to run smooth and the oil was clean when I drained it and at the correct level. I definitely will be doing a compression test before I pull it but so far it looks good. I figure I might as well do the timing belt, water pump, and clutch while I have it out.

tony_2018

What benefits will you gain from a jdm obd1 ecu?

NotARaCist

iTrader: (1)

Yep, definitely. The Gates kit for the LS is a good option for belt, tensioner, and pump, and you can't go wrong with an Exedy stock replacement clutch. If you need a how-to or write up for anything on that motor, just check out my build thread. I built an LS for my '98, and have nearly all of the procedures, torque values, and all that other fun stuff you'll need.

mountainEG6

So your saying use the integra OBD-2 engine harness, plug it into the stock Civic shock mount, and then just run a chipped OBD-1 P74 or P75? Seems simple. I was told I should find a OBD-1 engine harness and buy a OBD1 to OBD2 jumper harness but I am not sure witch way would be the least complicated.

NotARaCist

iTrader: (1)

Don't worry about the engine harness. Just use the stock harness that's in the car now. You don't need to replace it. Just get an OBD1 P74 or P75. You don't need to chip it. Those are stock LS ECUs. Nearly every bit of this swap is plug and play.

mountainEG6

Just to clarify you mean the integra B18B engine harness out of the integra. The EG engine harness is MIA assuming it was pulled when the old engine was removed. Sorry I know this has been covered a thousand times but there is a lot of bad information out there.

NotARaCist

iTrader: (1)

I mean the stock Civic harness. Apparently you can also use a 96-01 Integra engine harness, but I don't have personal experience with that.

mountainEG6

With the stock integra harness and a ODD-1 ECU I wounder what issues I would run into with the distributor. I have been reading a few articles that say it's basically plug and play but I rarely find things that simple.

If it is true I think I will bite the bullet and get a P74/P75 ECU like you recommended from a reputable vender.

NotARaCist

iTrader: (1)

I think Xenocron sells them, if you haven't started searching too hard yet. Distributor is easy - use a distributor with plugs that match whatever harness you use, or get an adapter harness from Rywire.

94EG8

Find a USDM OBD1 LS ECU, it will make your life much, much easier. There's more to using an OBD2 ECU than just the secondary O2 sensor, you'll also need to do the CKF trick (or wire it in) and you'll throw evap codes unless it's all wired in and working.

None.

Yes, this is the best and easiest way.

None, it's 100% plug and play. No cutting, no splicing, no hack jobs. It just plugs in and looks and works like factory.





P74s don't actually exist despite what you'll see online. '92 - '93 Integras used a PR4, which will work, or a '94 - '95 P75 as you mentioned.

94EG8

A bit of advice on the Brakes:

Swap both the front and rear brakes, the larger Integra front brakes make up almost all of the difference in braking. Swap the rears alone and you won't notice a thing (I've done it before)

Don't try to use the Master cylinder on the parts integra. It's an ABS model and the brake lines wont fit without a lot of bending and flaring, plus one ABS line is larger and you'll need a fitting there.

Buy a Master cylinder and brake booster for a '94 - '97 Integra RS. This is the only model without ABS, It's a 100% direct bolt on using the factory Civic lines. Buy a proportioning valve for the same, or use one from a '90 - '93 Integra without ABS, if you use the older prop valve you'll need to reuse the bracket from the original Civic prop valve though. I've personally used this setup and three different '92 - '95 Civics so I can confirm that it works.

If you're trying to keep the cost down you can alternatively use a master cylinder from a '90 - '91 Civic EX sedan. It's also 15/16ths and it will bolt up to your stock Civic brake booster and again the lines fit perfectly.

94EG8

Just a final note, you're in the enviable position of having a complete parts car so you have things available to you that a lot of people don't so you can make this swap especially clean and factory looking. Take the time swap the small extra things like the Integra throttle cable. If you think you may ever want cruise control the Integra pedals, cruise actuator and computer will all work, other parts need to come from a Civic. The front seats are also a direct bolt in swap.

mountainEG6

Thank you for all of the advice.

Yes the factory EG seats are in rough shape so I plan on swapping the integra seats over.

Xenocron was one of the venders I have been looking at. Seems like a fair price at around $175.

I plan on swapping both the front and rear brakes. But didn't know about the ABS master cylinder using different size lines. Thank you for the heads up because that will prevent a lot of confusion when the time comes.

I may try to swap the integra radiator over to the EG since it covers the whole front of the car. I am not running AC since it has already been removed from the integra.I do still have the factory EG radiator but it just looks so tiny compared to the integras.

I still have to put some research into the suspension but the integra has tons of what look like brand new suspension parts, some are brand new and still in the trunk.

94EG8

You have to fab up some top mounts and relocate one or possibly both of the bottom mounts. The Civic half rad while being tiny works fine.

Something I hadn't thought of before is the Integra has front and rear swaybars that will bolt onto the Civic, see below for more info:




The Integra also has a cool front subframe brace right in front of the steering rack that really stiffens up the chassis. The holes are already there for it, simply bolt it on.

If your Civic has power steering and you're planning to keep it the Integra setup is also about a turn quicker lock to lock. It's a direct swap but it requires swapping everything. The good news is if the engine is already out you can do it quite easily and not even have to disconnect any lines.

tony_2018

Was hoping OP would answer that because I wanted to know why HE would want to search for a jdm ecu. I already knew there were no benefits, everything that you stated and NAR stated made more sense to do than to go search for an obd1 jdm ecu that could be overpriced. Local you-pull-it sells you an ecu for 45 I believe so if there's an integra in there yard its gold mining time.

mountainEG6

That's why I wanted clarification. I had been reading and searching for a while and kept getting mixed responses. One of the threads I looked over suggested the JDM OBD-1 ECU specifically. Not sure why they would suggest it.

If I get time tomorrow I will swing by the shop and get some pictures of the EG. It's not the cleanest car in the world but it came from our side of NY state so it's rust free. That's a big deal when every Honda you see up here has holes the size of baseballs in the fenders.

Thanks for all the suspension advice. I will take pictures of the misc suspension parts I pulled out of the trunk of the integra. It also has some form of adjustable coil overs on it and adjustable shocks but I am not certain of the brand.

I also have a delsol SI with a blown B16 swap that I can pull parts from as well if needed.

tony_2018

It didn't read like you were asking to run the jdm ecu, it read like you were either choosing to run obd2 or run jdm obd1. If you have questions just ask because, as your title stated, its a project or a build.

mountainEG6

Here is the misc suspension parts out of the integras trunk.

Caoboy

Throw all that in the garbage.

Seriously, it's a waste of time and a headache to deal with when the bushings go bad because they are literally bottom barrel eBay parts.

mountainEG6

Kind of figured with the cheap powder coating and no manufacturing numbers.