Anthony,
Edelbrock, I haven't used a stock pump in 10 years...if not more.
vettestr,
I agree with your fin count problem. Years ago we used a higher fin count in our radiator (I don't remember what that count was but it is definitely lower now) and we did indeed find the higher fin count actually blocked air flow and made the cars overheat.
We were buying our radiators from a guy who built extremely high quality radiators for many prominent race teams. They had to have high fin counts to suck the heat out of the motor--but, they run at high speed! Idling a car in traffic is not something an Indy car is expected to do.
We actually don't run shrouds on our fans--for a reason. There are two times you need maximum cooling. One is idle and the other is full throttle on the track. We found fan shrouding to block air flow through the radiator at high speed on the track when you are really leaning on the motor.
Now, not shrouding the fan is NOT the same thing as not shrouding the radiator! The radiator MUST be sealed up to make sure all the intake air goes through it. Bypassing air does nothing to cool the radiator.
As a final note, we have found the aluminum motors to run far cooler than the iron motors. Our cars that have aluminum small blocks in them have a HARD time getting
oil temperature so they have to block off the
oil cooler for street driving.
David
