Supercharged Euro S52 Swap

[nukeduster]

Well, my friends 98 m3's motor killed itself not too long ago, and he is now in the market for a euro spec s52 motor, and I found him one and we have a supercharger kit for it that was orriginally on his american spec s52 motor that we'll be adapting it to fit..(hes going for at least 500bhp)

just was wondering, how envolved is swapping a euro spec m3 motor in place of an american spec one? assuming the euro motor came with all the wiring harness, etc.

[ldsbeaker]

I'm not sure about the intricacies of that swap, but it's been done before, by non-professionals, so it can't be THAT hard.
Just to be nosy, how much did that powerplant cost him?

[dutchbmw]

It's the 3.2 Litre? If so make sure to have the original ECU with it, otherwise the engine won't start. There's a special "connection" code between the engine and the ECU, they always belongs together. I know it sounds weird but a guy who sells those engines in my neighbourhood told it to me a couple of months ago. (when I was thinking about a 325 --> M3 swap)

Good luck and keep us updated!

[FREDPLT]

First of all a motor can't actually kill itself, I eman okay maybe, but usually its pilot error. So curiosity, what did your friend or the engine itslelf do to Blow? Was it the Stock engine or did he have somehting on it making more pressure on the engine thus causeing the block to eventually pop? I have had now over 12 BMWs through my family, not once has any engine built by BMW in my hands ever blown so I am curious cause I want to make sure my M3 engine doesn't suffer the same fate. Sad day though huh? I would have cried, really, I'm not afraid to admit it.

[nukeduster]

Originally posted by FREDPLT@Jun 28 2005, 07:23 PM
First of all a motor can't actually kill itself, I eman okay maybe, but usually its pilot error. So curiosity, what did your friend or the engine itslelf do to Blow? Was it the Stock engine or did he have somehting on it making more pressure on the engine thus causeing the block to eventually pop? I have had now over 12 BMWs through my family, not once has any engine built by BMW in my hands ever blown so I am curious cause I want to make sure my M3 engine doesn't suffer the same fate. Sad day though huh? I would have cried, really, I'm not afraid to admit it.

[snapback]358168[/snapback]

i posted a while back as to what happend to the motor.
http://www.bimmerwerkz.com/forum/ind...howtopic=39435

he was pushing 420hp to the wheels with the american spec s52. totally built internals with forged pistons among other things. dont know to what extent it was built, but end of the day he was lied to about some things that were wrong with the motor when he bought the vehicle.

8.5g's for the euro spec motor w/ 30k miles.

ive had 4 bmws myself and never popped a motor either.. but i think im jinxing myself, my turbo is just about finished on one of my 3's.

[FREDPLT]

I want my 98 M3 to last long enough that my kids can drive it, I don't plan on boosting this one ever. Maybe someday I will buy another M3 and play with it that way, but not for now. Sorry to hear about your buddys car!

[e36_m3_Turbo]

stick with the US spec, but do a solid lifter conversion(1600$) and need adjusted every 20k miles, then some stiffer springs. yeah.