Hi All,
I was impressed with my friends 4x4 it picks up very quickly from low rpm due no doubt to a shorter exhaust manifold than 2WD therefore reducing lag. I realise that perhaps the 4x4 manifold would not ultimately flow as well as 2WD and also they do tend to crack but would this manifold work well on a stage 3 2WD engine in regards to a more responsive pick up?

CheeRS, Mike.

 

Lag difference is not usually noticable on 330bhp 4x4/2wd, so not worth the hassle I wouldnt think??

 

Big power engines do tend to use the 2wd manifold due to its ability to be able to flow that much more.... but mildly laggier.

but not that much of a noticable difference on a 330bhp spec engine!

 

I think 400+ bhp is the time to consider swapping to a 2wd manifold, the 4wd is fine upto there (and a little beyond).

 

YUM had 470bhp with a 4wd manifold.....

 

Did it glow nicely The 4wd manifold doesn't limit the maximum power (that I've heard of) but a 2wd flows better at higher bhp.

 

the exhaust system can make a much bigger difference to the way that the turbo 'picks up' than the manifold.

you should also consider that 4x4 had a different turbo to 2wd that was designed to 'pick up' quicker

 

are the 4x4 and 2wd manifolds interchangeable ?

 

Yes they are...

You will have to give the turbo a twist tho