M52b28 mods

Sajk

Zorg Legend
Joined
Oct 27, 2017
Points
74
The m54 3.0 intake manifold retains the disa valve and the intake cam for the 3.0 fits the 2.8TU also. It provides a useful bump in power without sacrificing all of the low end torque that the m50 manifold does.

This combination gets the 2.8 up to the same hp per litre as the 3.0 which is about 75 at tye crank. Stock the 2.8TU is about 69 hp p litre. So it's a useful bump in Hp of about 16 which should put you at about 210 on the crank. Retaining the disa to help with low end torque and really opening up the top end greatly. Stock TU tends to run out of steam at around 5.8k rpm. The above combination pulls ard until about 7k.
 

bm0p700f

Regular Member
Joined
Mar 20, 2025
Points
13
I dont have the b28 tu. Just a m52b28. If I was changing the camshaft i go for something with more lift other wise what the point.

The m54 manifold does for fir the m52b28 does it. I thought that only worked on the m52b28tu engine
 

bm0p700f

Regular Member
Joined
Mar 20, 2025
Points
13
If i want to have an engine that revs well to 7k rpm blank of the vanos use the m50 manifold a schrick camshaft or similar (exhaust) under drive pulleys and the 6 speed box plus 3.64:1 diff. The chnage in diff would sort the loss of low end torque but the cost is enough I would need to save for a fair bit.
 
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