'89 318i 6 speed m50b32tu turbo swap build

[ba114]

had a nice read! v nice build btw , you had to go from 16" to 17" to clear those breaks right?

I'm looking to upgrade my brakes but can't give up my 16" bbs rs's haha.

keep the good work ! i want a video with a pull :D

I never tried the brakes with 16s...i had them right there in the garage to do so...but then i sold them. From what i read though, other people had run them with 16s.

[moatilliatta]

Was getting some issues with starting and a persistent DTC 83 (crankshaft sensor) error. The wiring on the ms43 sensor patch harness was good/new, however i'd leveraged the original harness for connecting to the sensor.
No pics, but the cable was not in great shape.

Decided to just run the e36 MS41.0 EURO obd2 front mounted crank sensor. In the e36 this is fed 5v from the DME, however i was informed that it would also accept 12v feed. So i wired up an adapter harness so i could wire it into the ms43 harness. Started first go! no more errors and a VERY strong start.

Does a 12v power to the OBDII Euro crank sensor to ms41.1 work out?

How did they come up with 12V feed would work on that sensor?

[ba114]

Yes it will also work in an ms41.1 car, however i dont understand why you would need to know? If you are ms41.1 you have the rear mounted CPS (same part number as the ms43 sensor) and should already have a patch lead to feed it 12v from the vanos connector.

[moatilliatta]

I have no current issues. But its something that has been in back of my mind, But no MS41.0 Euro car looks to have the 703 retrofit harness.

I have the euro M52 crank sensor on my OBDI timing cover and crank wheel. Running MS41.2

The rev limiter is set to 8K but kicks in at 7800, Something we haven't got sorted yet.

[ba114]

Gotcha. Basically what i was doing when i was using MS41.
The euro ms41.0 never had the retrofit harness because it uses a different sensor. At anyrate, it works perfectly fine with a 12v feed.

[4tDX]

This is what i am getting:
https://adamat.com.pl/n54-n55-turbo-...2x-kevlar.html

They are making a custom version of this with a starter ring gear position to suit the m50 starter motor. You could use any 8 bolt N54 clutch setup, as long as you use the n54 starter with a 10mm spacer.

Could someone elaborate on what would be the requirements going with a GS6-53BZ mated to an m/s5X? Is it possible to just use an N54 starter(+spacers)/clutch/flywheel and just bolt this sucker right up or do you have to go the custom flywheel route?

It's becoming hard to source a GS6-37BZ locally, but there are GS6-53BZ aplenty.