Junkyard Dog
Well-Known Member
It's just physics.
You are pushing 12 psi into an engine that was originally 486 hp before you ever touched it. It has 12:1 compression.
What is that going to be? 780 hp?
300 or more extra horsepower to cool.
That is a lot of heat to somehow transfer to the coolant and then transfer it again to the air. And you have to do it within he confines of the S650 Mustang envelope and, well, if you want to keep air conditioning and so on . . . it's a tough ask.
I don't think anybody has solved it yet.
Pull for a few seconds on the street does not create enough heat to cause any issues. A quarter mile with a cool down period again creates no issues (although back to back runs with no break might).
But 20-30 minutes of hard running on a real race track means removing the heat from 780-800 horsepower.
1 horsepower is 2544 BTU (with some after the decimal point numbers, LOL).
800 horsepower is over 2 MILLION BTU/hr.
486 hp is only 1.2 million BTU/hr. And they needed the performance package to try to keep that cool on track, right?
You are pushing 12 psi into an engine that was originally 486 hp before you ever touched it. It has 12:1 compression.
What is that going to be? 780 hp?
300 or more extra horsepower to cool.
That is a lot of heat to somehow transfer to the coolant and then transfer it again to the air. And you have to do it within he confines of the S650 Mustang envelope and, well, if you want to keep air conditioning and so on . . . it's a tough ask.
I don't think anybody has solved it yet.
Pull for a few seconds on the street does not create enough heat to cause any issues. A quarter mile with a cool down period again creates no issues (although back to back runs with no break might).
But 20-30 minutes of hard running on a real race track means removing the heat from 780-800 horsepower.
1 horsepower is 2544 BTU (with some after the decimal point numbers, LOL).
800 horsepower is over 2 MILLION BTU/hr.
486 hp is only 1.2 million BTU/hr. And they needed the performance package to try to keep that cool on track, right?
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