Re: Spot The Black Autodelta GTA 147 3.7 Supercharged
I think the 'normal' 3.7 Super is 420bhp, at 0.6 bar of boost. Maybe if you used lower compression pistons and forged internals you could up that to 1 bar and get roundabout 500bhp.. Should be 525bhp based purely on how much more air you'd get in but I'm sure as you increase the boost it gets a little bit less efficient.
You could take it a lot higher though, using the exact same supercharger there are VW Golf R32s with 550bhp+, with as much as 1.6 bar of boost. There was a thread a few months ago on the comparisons actually, but I can't find it..
- UK's leading independent Alfa Romeo specialist with branches in Bedfordshire, Cumbria & Dorset
Wizard Exhaust systems available here
Tel: 01768 879 171