Inlet mod

theduck · Post by **theduck** » Wed 13 Apr, 2011 17:55

I've read lots on here about the various versions of the big bore inlet mod for the 2.8 (both single and twin vanos) but cant find anything definitive on doing this mod on the 2.0. Has anyone done it? Is it worth doing?

I have also googled it and only found one comment on it and that was someone saying the head is different on the 2.0 and that the inlet flows well enough for the head. If thats right, then is a full head swap an feasible? If maybe not cost effective...

Z3cade · Post by **Z3cade** » Wed 13 Apr, 2011 18:08

It works very well on my 2.8 but im not sure about if it can be done on the 2.0? I remember a few on here with 2.0s thinking of doing it but they were unsure of what was needed for the 2.0....
If its an M52 engine then i should think you`d need an M54 325/330 inlet manifold, complete with Disa valve and an M50 throtle body adaptor plate
Oh and small hands as its very fiddly!!!

Bench · Post by **Bench** » Thu 14 Apr, 2011 11:33

I have spoken to Alpina527 a couple of times on this subject, there are no gains to made fromt his modification.

I have the BBTB and manifold conversion on my trackcar (E36 328) and got a dyno proven 25bhp from it.

Z3cade · Post by **Z3cade** » Thu 14 Apr, 2011 12:05

Bench wrote:I have the BBTB and manifold conversion on my trackcar (E36 328) and got a dyno proven 25bhp from it.

Was that with or witout a remap?

theduck · Post by **theduck** » Thu 14 Apr, 2011 12:24

Bench wrote:I have spoken to Alpina527 a couple of times on this subject, there are no gains to made fromt his modification.

I have the BBTB and manifold conversion on my trackcar (E36 328) and got a dyno proven 25bhp from it.

I thought as much, from what I understand the restriction is the head itself?

Bench · Post by **Bench** » Fri 15 Apr, 2011 10:52

Z3cade wrote:
Bench wrote:I have the BBTB and manifold conversion on my trackcar (E36 328) and got a dyno proven 25bhp from it.
Was that with or witout a remap?

Without map, I should have an updated dyno soon of max bhp after map. Although the car has been mapped for torque not max bhp.

Z3cade · Post by **Z3cade** » Fri 15 Apr, 2011 12:02

Bench wrote:
Z3cade wrote:
Bench wrote:I have the BBTB and manifold conversion on my trackcar (E36 328) and got a dyno proven 25bhp from it.

Was that with or witout a remap?
Without map, I should have an updated dyno soon of max bhp after map. Although the car has been mapped for torque not max bhp.

ah well i wonder what mines running at then.. may have to get it dyno'd