exaughst manifold
- Thread starter john4688
- Start date
If the standard one fits without fouling the radiator, then stick with it. - The cast iron is pretty tough and flows pretty well; it's not quite like a N/A car so the power gains aren't what you'd expect (better to have high pressure before the turbo and low behind it). If you really want one, the best thing is to get one fabricated: It will cost you a pretty penny, but it won't crack and the turbo will sit wherever you want it then.
I'm not sure though; do you need to fit spacers to get the 3071 to fit on the standard manifold?
I'm not sure though; do you need to fit spacers to get the 3071 to fit on the standard manifold?
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you will need spacers and a few other little mods to fit a 4" inlet 3071 to the car using a standard cast manifold but no spacers needed to mount a 2.75" inlet 3071 using a standard manifold, it will bolt straight on. John I have a ported standard manifold F/S, pm me if your interested.
gtirjoey
Member
im using the standard manifold, its worth porting it a little and taking out the big lump of metal that sits in the flange where it bolts to turbo..(well it worked for me)
i also have one of them ebay job manifolds, sitting in the shed being used as a paperweight thats all its good for!
as steve said go for the 2.75 inch inlet much less hasle to fit and no real power gains from the 4 inch.
i also have one of them ebay job manifolds, sitting in the shed being used as a paperweight thats all its good for!
as steve said go for the 2.75 inch inlet much less hasle to fit and no real power gains from the 4 inch.
It probably won't be that noticable to remove it completly but I don't take that partition "lump" out when porting the manifold, I just waste it back quite a bit and feather it. It will have been put there as to aid gas extraction.