GPM

The 1255 lb of torque pull was with a 5" pulley on the blower, the 1188 pull, I used a 5.5".both used the 7.65 crank pulley. I wanted to do one pull with race gas and more timing, run it up to 7000 rpm but I ran out of time.

cobra marty

Interesting, seems that at about 5000rpm the belt starts slipping. Which has more area under the curve? Because of the slippage problem, I would use a bigger pully and less boost and extend your rpm range. I would bet that you would be able to go faster with a bigger pully and no slippage.

GPM

I agree, when I put the bigger pulley on I gained 171 hp. We didn't run it up high enough to see if the belt slipped again.

MILD THUNDER

iTrader: (3)

Bringing this thread back up.

468CI
Dart alum heads
9:1 static
420 B&M 6psi no chiller.

mike tkach

iTrader: (3)

800 hp fixed it for you.

mike tkach

iTrader: (3)

588 cu in...8.6 static...dart 355 cnc heads...superchiller cooler under 8.3L whipple 13 lbs boost...1200 hp at 6500 and still rising.cam xxx.hyd roller.

the deep

iTrader: (8)

Bare 502ci block and an 871/twin 850's . Workin on the rest .

Awdgsx

Bringing it back..
496 8.25 to 1
Un ported oval port iron heads.
671 8% overdriven 7psi
29 degrees timing
91 oct
Two 800 edelbrocks
Non intercooled
706hp at 5900

ezstriper

500HP +.030 procharger 6psi @ 5200

sutphen 30

add some timing,,32-33° will probably wake it up