That's pretty good going ..... Is that whp of hub hp?
Thats whp.
Check out Sasha Anis on youtube if you want any ideas on NA tuning, probably the only person i have found that has taken the VQ platform to the extreme.
I believe at the moment he is producing 414WHP with a 3.7L (was originally a 3.5L HR engine but changed the crankcase and many other bits) He has a custom made straight through exhaust, Jenvey ITBs but with custom made trumpets and a whole slew of other bits and pieces. I believe he is also taken the rev limit up to 9500prm though from what he has said he wants to go to 10500pm. Look at the OnPoint Dyno website. He has multiple blogs on his progress.
At the moment he has just had a custom gearbox made for sequential shifting. And i might be wrong but with no need for the clutch pedal.
Dunno if this will entice the guys who wants to NA tune their Zs. It definitely does me!
That on abbeys dyno ? If so that's hub bhp, about 20 bhp down on whp . Even if that's the case 280 at the wheels is pretty good going for bolt on's !