Hal's Great Stroker's Dyno Sheet

[Hal Copple]

i have had my stroked 396 CI Windsor on two different chassis dyno's, with ambiant temps about the same, ie, about 60 degrees. Both curves were very similar, varying only a few hp or # torque. I have Trick Flow/TW heads, a holley 750 HP Pro, sitting on an Edlebrock RPM intake. 32 degrees advance. The runs were with the aircleaner on, as the motor sits in the car.

So, here is my curve. Peak RWHP is about 360, peak RWTorque about 400#. What i learned from all this is that my motor falls off the power curve at about 5600-5800 rpm, so i don't need to shift over 6K rpm. I have my motor chipped at 6K, and try to shift just below that. Motorsports flat tappet/roller rocker cam.

Using say 20% drivetrain loss, i have about 430-450 hp at the flywheel, running with the alternator, water pump, etc.

Just thought i would toss out a probably representative moderatly stroked Windsor. By the way, the two times that were so identical, had about 50K miles between them!!

Ok, i'll post the dyno in the next post down below.