502 Dyno numbers
 

I found my dyno sheets from my old 502.
This motor had iron oval port (Merlins) , with a Brodix intake , 1050 dominator and 8:5.1 CR.
The cam is a solid roller.
.715/.715 258/[email protected] on a 112 , I think we had in installed 4 deg advanced.

These dyno pulls were using 89 octane gas. And 34 degrees of timing.

At 4000rpms the torque was at 522 and it peaked 571ft/lbs at 5100rpms, it stayed at around 560 ft/lbs all the way to 6000rpms.

At 5800rpms it had 620hp , 625hp at 6000rpms.
I ended up grenading this motor. I purchased one of those Carter mechanical fuel pumps from CPperformance that I was told would work in place of the Merc fuel pump (Gen6) well that was a joke, when I put a gauge on it I think it had 2lbs of fuel pressure, not even enough to keep the float bowls full. The combination of that and a major reversion problem caused the motor to detonate to death.
I have all those problems fixed and now am even happier with the 540 !

Now I have the same heads ,cam , intake on a 540 and we bumped the CR to 9.1
A question i have is the 502 made 1.245 hp per cubic inch , am I safe to say that the 540 is making 670-675 ?

Come on gear heads , any opinions ?

No opinion this time, but I DO have a question----If the Carter mechanical fuel pump didn't work then which fuel pump did you end up using that worked well?. The new Holley's I installed last year aren't holding up to their advertised pressures. I was told to use an Edlebrock fuel pump with an external regulator, and I was just curious as to which one you ended up with? Thanks in advance

The bump in compression and the extra cubes using the same cam will make things happen at a lower RPM than on the 502. That is probably good since you are running oval port heads. I would say your guess is close with max hp at 5800 to 6200 rpm. You probably have more torque down low. Only a guess. I see your torque curve is pretty flat. That is one of the benefits of a roller cam. It extends rpm range on both ends of the curve. Nice combo.