Alfa Romeo Forum - View Single Post - Porting Manifold and bigger downpipe on JTD

jasons · 15-02-2008

the biggest restriction is the poor intake system going around lots of bends.
Try and enlarge this to 3" or more (air mass also) straight as poss to the turbo.
Then deal with the poorly placed intercooler, front mount is much better.
These two simple mods will get the car breathing well and would be a massive bonus before remapping.

15-02-2008	#2 (Post Link)
jasons AO Member Join Date: Sep 2007 Location: Derbyshire Posts: 777 Member car: 156 2.4JTD 200+bhp	Re: Porting Manifold and bigger downpipe on JTD the biggest restriction is the poor intake system going around lots of bends. Try and enlarge this to 3" or more (air mass also) straight as poss to the turbo. Then deal with the poorly placed intercooler, front mount is much better. These two simple mods will get the car breathing well and would be a massive bonus before remapping.