Bringing my 1990 Civic DX back to life.

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Old Sep 14, 2025 | 03:41 PM
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Default Bringing my 1990 Civic DX back to life.

Hey all, I've decided to finally bring back my first car that has been sitting for about 7 years now, as life has finally afforded me the time/means to get back into this project. I plan to ask questions/post about the journey here as it comes along. Speaking of which, I have my first question. I've picked up a D15b7 engine from what appears to be an OBD-1 EG I think, and I also just bought a decent condition 21 spline 1988 CRX Si cable transmission. Now, I think the '88 uses a 200mm flywheel, and a specific clutch for the 21 spline input shaft. I was wondering what a good path to possibly improving on this might be, I would like to step up to a 212mm flywheel that the newer EF's use, but of course I can't use the 20 spline clutch that the 89-91 cars use, so I was wondering what flywheel, pressure plate, clutch disk, and throw out bearing I should order to accomplish this task. Furthermore, I wanted to verify that if I get an OBD-0 distributor, and a DPFI Intake manifold from an EF if it SHOULD work on the D15b7 engine. I don't see why it wouldn't as I believe the b7 is almost the same as the b1/b2, but it would just need to be converted to all OBD-0 hardware for it to hook up to the OEM wiring harness of the 1990. I plan on tinkering with it/adding MPFI later on, but my main goal at the second is to just get the thing running, and driving so that I can move it to a more appropriate place to wrench on it before I do that, and I think the easiest path to that for me right now is bringing it back to OEM spec at least as far as the engine side of things goes. If anyone has any advice/would be able to link me old threads pertaining to this, and/or would like to give their own 2 cents I'd be more than happy to hear. I left the Honda world to get into my VW's so I've been trying to refresh my memory, and remember some of the things I read on forums from 7-8 years ago lol. Appreciated, cheers!
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Old Sep 15, 2025 | 12:08 PM
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Default Re: Bringing my 1990 Civic DX back to life.





Included some photo's of my Civic in it's current state, as well as some pictures of my '88 CRX Si transmission after I gave it a quick once over cleaning to get the majority of the grime/grease off of it. Should make it a bit less of a mess to hoist it up into the car/mate it to the engine once I get an engine stand to do the timing belt/ water pump.
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Old Sep 16, 2025 | 12:15 PM
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Default Re: Bringing my 1990 Civic DX back to life.

i think keeping the layer of the dirt on the exterior will save it from superficial scratches, good decision.
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Old Sep 17, 2025 | 03:59 PM
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Default Re: Bringing my 1990 Civic DX back to life.

Haven't had a chance to clean it up proper yet, but as soon as it gets moved to the spot where I'm gonna start prepping it to get back on the road, it'll get its first bath in a long long time. I'm super excited to get it back on the road, even if it is just with a D15 back in it lol.
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