M54b30 intake manifold on m52tub28

[Dorito]

I was ordering a new DISA to do a refresh on my intake manifold when I go in to do the hard coolant pipes and found some posts on people swapping to the m54b30 manifold.

I have a b30 manifold that already has a new DISA, gaskets, ccv piping that came off a car that got an M50 manifold.

Can I really just bolt this manifold on and get a throttle body adapter? It would be great to save a few bucks on another DISA and get some extra flow

 

[John_B]

You need a different ECU too.

Here is a really thorough write-up that I am going to be following myself later this year

 

[Stevo7682]

You dont need a different ecu you just need to get the tuning altered on the current ecu to get max performance out of the conversion.
Stephen.

 

[Sajk]

The best easy swap for the tub2.8 is the m54 3.0 intake, manifold and intake cam plus a tweak to the tune although depending on circumstance you may not need this. The tub2.8 is restricted to about 67hp per litre . The norm for the m54 range is about 75hp p litre. Adding the 3.0 intake manifold and intake cam puts the 2.8 at about 75hp p litre which puts you at about 210hp.

I actually went a bit further and went cat cam sport cams and it was a waste of money. I have a brand new 3.0 intake cam sitting around.

 

[Andyboy]

I just happen to have a 3.0 manifold