REVERSE INLET MANIFOLD
20 April 2007, 09:18 PM
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REVERSE INLET MANIFOLD
Hey peeps,Im looking at a new rebuild for summer and thinking of a 450-550bhp engine for fast road and a bit of crail,i was wandering if anyone had any advice about reversing the inlet manifold?im using a 2.5 block with v5 heads,ive heard an sti 8 inlet manifold is the one to use but im not sure whats involved in reversing it?any help would be appreciated!
Cheers
Craig
Cheers
Craig
22 April 2007, 10:00 PM
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No it just reduces lag very minimally.
If you have air con this will be lost as your alternator needs to be relocated and also your power steering res might need modifying depending on the set up.
The early phase 1 manifolds will foul the bonnet once reversed so you will need to have a wedge made to reposition the TB also the Icv may foul the bonnet. IMO if you are reversing the phase 1 manifold, its best left in its original position and better of having the existing Tb welded to the front side and the existing entry plated this way works best and everything clears the bonnet.
If you are using the later phase 1.5 version 3 manifold the same as the sti 3 this can be rotated much easier all that is needed is the grinding of the dowels on the underside and no work to the TB or the ICV but you will still have to relocate the alternator etc.
If you have air con this will be lost as your alternator needs to be relocated and also your power steering res might need modifying depending on the set up.
The early phase 1 manifolds will foul the bonnet once reversed so you will need to have a wedge made to reposition the TB also the Icv may foul the bonnet. IMO if you are reversing the phase 1 manifold, its best left in its original position and better of having the existing Tb welded to the front side and the existing entry plated this way works best and everything clears the bonnet.
If you are using the later phase 1.5 version 3 manifold the same as the sti 3 this can be rotated much easier all that is needed is the grinding of the dowels on the underside and no work to the TB or the ICV but you will still have to relocate the alternator etc.
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