Manifold for 2.5i

[Millar]

I'll be taking delivery of a 2.5i soon which will be replacing my 2.0 carbed job, what manifold should i use to connect it to my standard e21 320/6 exhaust?
Cheers
Millar

[--ALPINA--]

you will need an E21 323i manifold, downpipes, middle box and the two back boxes!!


j

[Millar]

Ah i've just fitted twin tailpipes on the left handside lol, anyway i can connect to them?

[murran]

nothing wrong with the 320/6 exhaust manifolds, mine uses the 320/6 manifolds down pipes and center box.
just need to die grind the manifold out a bit to the 325i exhaust port size or youll have a 3mm step all round as you go from the head to the mani.

[Millar]

did you just weld up the hole that feeds exhaust gases to the carb then?

[murran]

what hole? there wasnt one.

[Millar]

i'll take a look when i get my car back, i'm probably talking sh*te haha.

[e21-Mark]

Do you mean the vent pipe that goes from the inlet manifold?

[Millar]

it goes from the airbox on top of the carb to the exhaust manifold.

[e21-Mark]

Maybe cold start or some such shananigans? Roll on injection!!

[Millar]

yeah something about that, and stopping the carb from freezing up in cold weather! too right, cant wait