Tryin to find info on an eclipse motor swap into a 99 elantra. is it posible ifso what yr eclipse and what mds may be needed.
*** NOT tying to get gs-t. ***
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You may be under the impression that the two engines are bolt in replacements for each other. You are looking at doing a custom fab-up. You will also need all the mitsu's drive train and ecu. It would be cheaper to find out how to improve your beta.

 

Yeah, what Design said

 

bluedream-

It is possible, but not easy or cheap. The older elantras had mitsu motors but 1996 and newer are hyundai motors, so the swap is a major pain.

For the cost, you would be better off to improve the existing beta motor with a turbo charger.

 

the mitsu motor is backwards to ours, it won't even blot up, and to get it in you'll need to swap everything around in there.