[QUOTE=CA-Legal-Vette;1566467674]I think in this example it would be about efficiency. A higher HP motor is less efficient at low loads, hence why it burns more fuel even when not driven like a solen car. In your example, while it only needs the same HP for the same weight car at the same speed, it will generate more waste heat.

i agree,however unless you go to the outrageous extreme cited above,i still think you would have a functional car.

my point is this....when i had my original problem , i diagnosed the whole thing backwards , like most people i started throwing money and time around trying to get it to run cool. if i would have just taken the time to really, and i mean REALLY think it through i could have saved a few bucks and a lot of aggravation. but on the other hand , hind sight is 20/20 so maybe i needed to do this the hard, expensive, not so smart way.

my car with the 502 should have been usable with the oe 454 cooling system. i probably would not have been able hammer on it without a problem, but daily driving should not have been out of the question, didn't come to that realization until it was over.

 

Have you been able to actually "see" the lower hose collapsing while revving the engine? .. Do you have the 2 separate hoses with a middle metal tube type? .. Because I think the BB with A/C lower hose type (ie the two pieces type) has no springs inside from factory, because they are two small pieces and could not be collapsed. That what I was thinking anyway, and possibly I'm wrong! .. but your answer will enlighten that for me.

Hamad

 

HAMADUP , you are correct ,it should be 2 hoses with a steel pipe in the center. the hose that was on the car when i got it was just 1 long hose. and yes i could see the hose collapsing, when i would blip the throttle it looked like it had a pulse, if i held the throttle @ 1700 or 1800 rpm it would start sucking down, and all of this was happening with a stone cold engine,i never did see what was happening wen everything was hot. put on a wire wound univesal hose and that did the trick.
i will say this in my defense,had i not removed the fan shroud & installed an electric fan it would have been almost impossible to see the hose pulsing.

 

YET ANOTHER reason I hate the stock fan setup, too much wasted space under there and it makes the front of the engine, suspension, and other crap impossible to work with....

much less leave room for any improvements....

one of the better things I did was the Dual Spal install....

 

I have a '69 small block base 300 hp car, no AC with the small copper radiator which was recored a couple years ago. Last year I put a 454 in it. Probably 450 hp. Stock 7 blade clutch fan, again, small radiator. With a 180 thermostat, it ran 180. Never any hotter. This year I put in a 502 with 500 hp. Took it out for the first time this past weekend and it never went above 180.

Moral of this story. If everything is in good operating condition, the stock components will cool most any motor that will fit in the car.

 

my thoughts exactly,too bad it took me so long to figure it out