Ok I rebuilt an M20 but now I have a 91' 318 for a donor car instead of the 325 I used to have. So that being said what will I need to change in order to use the M20 in that chasis? I assume the trainy, exhaust, possibly the drive shaft and the wiring harness/ecu but is there anything else I'm forgeting? Any help would be cool an most appreciated.
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is it a 318is?Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.
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89 E30 S52
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No it's a 91' four door 318.Comment
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Your forgetting radiator with its overflow tank. I'm guessing your m20 has its clutch fan attatched to it right now including its aeccessories e.g ac, power steering pump. So basically drop it in, connect your pipes, wires and mount engine and tranny then connect the new tailshaft. However putting in the heavier m20 over the lighter 4 cylinder (not sure what engine the late model 318i came with in the US) it may lower the front a bit.
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Good point! I did forget about the suspension. I believe the car already is lowered with H&R's on it now so I'm gonna have to look for a set of front springs for a 325 instead. Should I run the factory radiator and fan or would I get better cooling by going aftermarket?Comment
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The suspension will be just fine.
You need the COMPLETE M20 engine, drivetrain, wiring, computer, cooling system, etc. Nothing from the 318 stuff works easily. No you don't need an aftermarket radiator, stock is fine.Comment
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