M5 conversion

[colamangr]

Hello guys!

I want to swap the M5 S38B36 engine to my 520 M50
What am i going to need apart from the engine?

Thank you!!!

[rob101]

err ECU, Transmission, mounts, exhaust
have you considered doing an s50 swap?

[colamangr]

Only these???
Yes i have, but it is easier for me to find a S38! And a lot cheaper i think(at least here in greece).

[rob101]

in all honesty an M5 would be cheaper
and would have lots of goodies that a 520i doesn't
i like my 525i m50 also, but i've crunched the numbers and they just don't justify engine swap vs. an m5 or 540i
and no there is more stuff than that, that'd be for starters!

[Scott H]

He knows the exact list, but it's not terribly different from many other swaps.

You need the engine with all accessories (including exhaust), the tranny, clutch, flywheel, driveshaft, tranny support, pedal box, clutch master and slave, shifter linkage, ECU for engine, engine wiring harness, a couple of brackets to weld in the engine bay to hold coil, etc. The M5 used a larger case differential so if you want to use the M5 differential, you will need the entire subframe from the M5 as well.

Only these???
Yes i have, but it is easier for me to find a S38! And a lot cheaper i think(at least here in greece).

[colamangr]

He knows the exact list, but it's not terribly different from many other swaps.

You need the engine with all accessories (including exhaust), the tranny, clutch, flywheel, driveshaft, tranny support, pedal box, clutch master and slave, shifter linkage, ECU for engine, engine wiring harness, a couple of brackets to weld in the engine bay to hold coil, etc. The M5 used a larger case differential so if you want to use the M5 differential, you will need the entire subframe from the M5 as well.

you are saying about pedal box, what do you mean? As for the differential i will use a large case differential from a 535 e28 which fits to my subframe!

[colamangr]

I know all these but i don't want to sell my car or buy another one... i want to convert it to an M5. Also an M5 here would cost the triple from swaping engines!

[Scott H]

If so, then you are set regarding the pedals and the box. Otherwise, you need pedals and a pedal box for the manual cars as the pedal box for a manual car has a small tab that accomodates the clutch helper spring.

you are saying about pedal box, what do you mean? As for the differential i will use a large case differential from a 535 e28 which fits to my subframe!

[Brandon J]

I did this. DO A SEARCH!!! I am not going to say the list again. You will need a donor car. Too many different odds and ends that complete such a project. Even the heatshields for the front subframe have to be correct or else you will cause premature wear on the center link ball joint from the heat. Again, you will need a donor car.

Hello guys!

I want to swap the M5 S38B36 engine to my 520 M50
What am i going to need apart from the engine?

Thank you!!!

[colamangr]

If so, then you are set regarding the pedals and the box. Otherwise, you need pedals and a pedal box for the manual cars as the pedal box for a manual car has a small tab that accomodates the clutch helper spring.

Yes my 520 is a manual! Sorry i forgot to mention it...