I'm glad to see I'm not the only one who's got nothing better to do on boxing day
Anyway, I'm currently having a new engine fitted to my Astra Coupe Turbo after it died a few weeks ago due to one of the pistons falling apart. It also ruined the turbo in the process so I'm having a VXR turbo fitted as it's a bargain compared to the standard Z20LET turbo, at only £450 and is supposed to be comparable to a stage 3 unit....almost.
What I'd like to know is, how much of a power increase can I expect from this new turbo? I have a standard exhaust which I know will restrict the power. The only mods I have done is de-restricting the airbox, bigger air intake and Iridium spark plugs. The car did have Superchip software (pushed out about 220bhp I think) but it's being changed to a stage 2 software upgrade.
I get the car back on Wednesday and I'm looking forward to a bit more power, but just not sure how much. Any ideas?