GPM

598, 9 to 1, BB2 xtra, .750 solid roller, 276/ [email protected] Procharged, EFI. Ran octane booster above 10lb boost.

tomcat

Back4More: More details and dyno graph at:

http://www.offshoreonly.com/forums/s...ad.php?t=99521

GPM: Here's what your data looks like. Got to love that centrifugal torque curve all flat and stretched out by the linear boost curve. What about your new data?

GPM

TC, the new one's top secret.

tomcat

Oops! Didn't mean to let the cat out of the bag!

GPM

The Cat busted out last year, just don't advertise it. It has been a long cold boring winter, a lot of spare time to feed the cat. PS. thanks for the graph.

44MTI

598ci
Brodix 3x cnc
775 lift solid cam
Whipple quad rotor with moac inbtercooler
11# boost, 93 oct, 1260hp
15# boost 112oct, 1370hp

Dustin said I probably left 100hp on the table, A/F never got above 11.3, and Brake specific 6.5. maybe to small of carbs 1050's

cobra marty

I love that Tq curve of the 598!

GPM

I'm still waiting to see some dyno sheets on those 1500 hp Whipple motors.

42MTI, wouldn't mind seeing your dyno sheet, it would be nice to compare, see how much more low end torque a Whipple makes, since we're running almost the same combo. Just curious, how many square inch is your intercooler, Procharger uses 648.

GPM

TC, can you plot this one,12 rib blower belt started slipping and the power fell off, but the torque came in nice. I was thinking about trying a cog drive, and see what happens.

tomcat

GPM: Here you go. New data on the dotted lines. I haven't figured out how to put the boost numbers on the right side of the graph but the highest boost from the first test was 16 psi so you can scale it from there.

What overall blower drive ratios are we looking at with these two tests?