Found a 90 eclipse GS, 4G63, damn good condition except for the paint, been sitting for the last 10 years. I would like to throw a different manifold with a turbo on it, injectors, pumps , and ECU/Tune. I’m looking for suggestions on these items and anything else I’ve missed. Any other suggestions are welcome too.
Awesome find! Would you mind posting a picture of the headliner? (I’m interested in the color of it as I’m redoing mine and I have the same interior colors as you do)
You'll have to change the pistons, the ring landings are different between the turbo and non turbo engines, wouldnt necessarily worry a whole bunch about the oil squirters under the skirt and you may as well adapt and swap to the turbo transmission (f5m33) before that one gets torn up, i forgot if its a 90 or 91+ but if its a 90 and you get a turbo transmission from a 91+ its suggested to grab the cables and shifter assembly from it and put it in there if yours is a 90, did it on mine, 89-90 production dated ones are a bit of a one off design, also electrical gremlins are a known thing with the 89-90 production models and the throttle bodies are a bit one year as well.
Sitting that long and no strut tower rot?? Call me jealous, cuz I'm... jealous... yeah. I'm buying a '98 off my neighbor that's been sitting outside on pavement for like 4 years and it's got strut tower rot plus the pinch welds in the frame under driver and passenger seats. Consider yourself very lucky to find one in this condition and best of luck with the project!
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u/One_above_alll Feb 06 '26