Hi just wondering if anyone can shed some light, is there a difference between the 4wd cosworth and 2wd cosworth inlet manifolds?
If so what is the difference and which is the best one to use on my 2wd engine.

Thanks

 

sure the inlet manifold is exactly the same.

 

The best one to have is the T25 ecos one flow upto 600 bhp apparently
Next is the 4x4 (better elbow design i think)
and then the 2wd

 

The info above is for the inlet plenums. The manifolds are the same (with the exception of the T25 manifold, which has an 1/8th NPT tapping in the middle).

 

As said elbow is two piece design on 2wd but single piece on 4wd.
tabetha

 

The guy is asking about inlet manifolds not plenums.

Unless he thinks they are the same thing?

 

its both plenum and inlet i was supposwd to ask about just that i have both lying around so i was wanting to know which is the best ones to use in my rebuild.

should i keep the 2wd one or fit a full 4x4 one (plenum and inlet) for better flow, just i would rather know now before the engine is back together and i sell the other manifold.

Thanks

 

fit the 4x4 plenum, sell the 2wd one

fit whichever manifold you want

 

As above

 

Thanks very much for the help, it is much appreciated.