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· Opeler
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54 Posts
Exhaust manifold of 2.4 cih to GT?

Has anyone tried to fit an exhaust manifold of 2.4 CIH (C24NE afaik) to GT? My main concern is the flange to the exhaust pipe, does it interfere with engine support? At the moment I've got an exhaust manifold from 2.0E so it's flange is wider than the original which makes installation a bit difficult.
Yesterday I compared 1.9S and 2.4 exhaust manifolds. It looks like there should be no problem (2.4 exhaust pipe flange is rotated 90 degrees compared to older manifolds, but is as big as 2.0E flange), but can anyone verify this?
Also, does anyone happen to have an opinnion of performance of this manifold? Ports of cylinders 1 and 4 seem to be a little bit wider, but not much. Difference of length of cylinder 1 and 4 runners is greater than in older exhaust manifolds and it also doesn't look just as smooth as 20E manifold. Anyway, my *guess* is that this would perform quite similar to older manifolds (=enough for 160hp or so) as this was originally meant for 125hp engine, not 110hp.
 

· Opeler
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54 Posts
Re: 2.4i Exhaust Manifold

GTJIM said:
THe 2.4i exhaust tucks in closer to the engine than the standard one, by the look of it. The Torana manifold has a similar flange position but is rotated 45 degrees but in about the same swept-back position - it interfers with the oil pressure sender.
Torana? Never heard about that. I assume it has something to do with Opel, Vauxhall or Holden? Good you mentioned that oil pressure sender thing. When I think about it, I'm pretty sure I saw that unit attached to timing cover of Omega engine. More room and less heat there. I assume it is possible to mount sender also to older timing covers.


The advantage of the 2.4i manifold is the oxygen sensor for use with "closed-loop" fuel injection. Got any spare ones Lasse H ??
I've got closed-loop injection in my plans for this winter. But if I run out of money, or something, I'll remember you. :)
 
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