I don’t want to be a wet blanket but I don’t think it’s possible with stock blower only. I ran 8.7 at 4500 but that was with a 426 with Thiteks and a properly set up 4.5 Whipple. Aggressively tuned by Barth on E90, it made 1200whp and ran that with a 1.27 sixty. Once you get to that 9.0 barrier it gets harder. A lot harder 😳
Well I went 8.88 sucking the throttle body closed. I’m porting the blower doing a snout adding a 108 throttle body.
the throttle body alone was a good .08 id say at least. If the ported blower and throttle body really adds 85hp I’ll be close. Plus I can still drop pulley and see if it gains anything. With the ice box I am installing I think a smaller pulley may be possible. Just going to beat the crap out of the blower doing it.
I am adding long tubes. Prolly won’t gain a lot from those but I will drop pressure. It won’t be easy that’s for sure.
O my 8.88 was still on a 17. The car still has a little diet it can go on.
Maybe if I came down to Houston it would be possible in that air. But that’s a commute