JDM vs Rebuild
 

Ok so ive spent the last 2 days doing research on engines since mine quit on me. Ive found a good deal on a jdm motor that comes with a good warranty and they are willing to send me a compression test. But my question is will it fit directly in my car or am i going to have to modify stuff to make it fit. I want to keep my core so i can slowly build what i really want but i need somthing to get my by. Now alot of the old threads say that you dont really know what you get when you go JDM, but none of them say what really goes into installing a JDM. Well if anyone knows or has done this any help would be great. Im hoping to hear it will bolt on in place of my engine.

JDM is a direct fit just to answer your question. You should be weary of JDM motors because you don't know how long they have been in storage or the last time it's been started up (if at all). If all the fluids have not been drained, the old coolant that is in the motor will eat through the seals and that would require a rebuild anyways.

If I were you, I would get a rebuild just to be safe.

the only thing about getting a rebuild is that they more than the price of the JDM but without the turbos and tranny and i would have to pay the extra 900 for the core deposit. IDK im pretty confused but i will continue to do my homework on it. As far as wiring it will it be the same or diff.

oh you also should consider whether will that JDM motor will pass the emission test, as i find out that JDM engines will not pass the emission test in the U.S. IDK about the country where you from.

i live in a smaller town and emissions are not a problem for me. but thank you . I also heard on the forum that you could take off the intakes off your motor and put them on your JDM and you will pass. Im not sure about that but i dont have to deal with that part.

What kind of warranty do they offer? Most engines that are imported to the US are just warrantied for the start-up, and usually a 2 week warranty as long as you follow 801 different criteria during the 2 weeks otherwise you void the warranty. But if you think you have deal, go for it. I like the JDM transmissions because they are shorter geared. I had one for a little bit before I blew it. :(

but as far as wiring and ecu and everything should be the same right? Does anyone know what else i will have to buy or do to make this work?

From my understanding, I believe the wiring is the same however the ECU is different because the jdm motor's had a different turbo set up (i.e. bigger and better twin turbos) I would suggest getting a PFC or another stand alone ECU and some tuning just to be safe.

Where do you guys come up with this stuff?

The "JDM" engines are EXACTLY the same. The major differences being that the LIM does not have an EGR casting (which 95 US engines do not either), the vacuum control system and the wiring harness is different after 95. Everything else is the same, including the turbos. The so-called 99+ turbos have some changes to the seals and wheels but are essentially the same.

To install a 96+ engine, you will need to work with the wiring harness to get it to work with the US ecus (or even the PFC) and really swap over the US vacuum control system. You will also fail emissions/get a CEL if your ecu is expecting to see an EGR.

There may be more to it, and I may be off on the whether or not the vacuum control system will work with US ecus, but it's been discussed before....SEARCH function.

amazing that you still did not close this thread. j/k :D