SA E36 M3 de-tuned?

Prego

///Member
Sorry to bring this up again guys - I was just wondering,if the SA version
of the S50B30 was de-tuned for our market due to poor fuel and makes 210kw in standard form.What would one make if tuned in standard form?
 

rick540

///Member
Our fuel had sulphur not an octane problem, so I doubt it was detuned.

I have had a chance to try an European ECU together with Lambda sensors on two of my cars, the 540 and the M5 an on both I ended up putting the South African software back because it felt better in terms of power. The Euro software made the engine smoother and more refined but less driveable.

Depending on the year some cars had no cats allowing the SA stuff to be tuned for more power, though this was not published.

 

calypso

///Member
From what I read only the 3.2's were detuned. They were bumped from 321hp to 310hp. BMW really had to work hard to get the engine to 100hp/l, even at the expense of torque.
 

Fordkoppie

///Member
calypso said:
From what I read only the 3.2's were detuned. They were bumped from 321hp to 310hp. BMW really had to work hard to get the engine to 100hp/l, even at the expense of torque.

+1
In fact, although it was never official, I suspect that our s50b30s made a little more power than the rest of the world since the 3.0L still had the high compression and it didn’t have any cats
 

Divio

Honorary ///Member
calypso said:
From what I read only the 3.2's were detuned. They were bumped from 321hp to 310hp. BMW really had to work hard to get the engine to 100hp/l, even at the expense of torque.

A bit off-topic, but that reminded me of this ad. :=):

9537122_toSW3-L.jpg

 

Carbon

///Member
calypso said:
From what I read only the 3.2's were detuned. They were bumped from 321hp to 310hp. BMW really had to work hard to get the engine to 100hp/l, even at the expense of torque.

Not really accurate. At the expense of torque at LOW REVS. You need torque at higher revs to crack 100bhp/l

 
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