Alfa Romeo Forum - View Single Post - Inductions kits

symonh2000 · 10-05-2008

The thing is, the standard airbox is not particularly restictive, has a cold air feed (under wheel arch) and is plastic so doesn't suffer from heat soak.

There aint a lot you can do with it to make it any better other than the GTA pipe and Hi flow element IMO.

If you are after good performance per pund you might be better off looking at cams, remaps and exhaust. Then start thinking of gas flowing things.

Also remember that plastic topped TS engine have a tuned intake system, which will not work as well if the cone is removed from the airbox.
The cone is there to reflect negative pressure waves back down the intake and this assists in filling the cylinders, the reason it is cone shaped is so that it works over a wider rev band.

10-05-2008	#7 (Post Link)
symonh2000 AO Gold Member Join Date: Dec 2005 Location: Carterton, Oxfordshire Posts: 6,106 Member car: Fiat Coupe 20V Turbo	Re: Inductions kits - What you need to know The thing is, the standard airbox is not particularly restictive, has a cold air feed (under wheel arch) and is plastic so doesn't suffer from heat soak. There aint a lot you can do with it to make it any better other than the GTA pipe and Hi flow element IMO. If you are after good performance per pund you might be better off looking at cams, remaps and exhaust. Then start thinking of gas flowing things. Also remember that plastic topped TS engine have a tuned intake system, which will not work as well if the cone is removed from the airbox. The cone is there to reflect negative pressure waves back down the intake and this assists in filling the cylinders, the reason it is cone shaped is so that it works over a wider rev band. 1997 Fiat Coupe 20 Valve Turbo. GTEC1 chip with 1.2 bar of boost. 260bhp at 5700rpm. "Driving a car is very much like making love to a beautiful woman. You should treat it gently during the week, and then Rag the arse off it at the weekend."