Post by
C-Kwik »
https://forums.nicoclub.com/c-kwik-u426.html
Wed Mar 03, 2004 10:16 pm
At 10 psi, you could run into cooling issues under extended periods of boost, particularly in hot weather. I run only 6.5 psi, and the only way I can get the temp needle to rise is to turn the A/C on and drive uphill on a very hot day. With the A/C off, my car had no problems with hot days lap after lap.
A larger radiator might help, but that depends a lot on whether or not the cooling problem is the radiator. If the radiator is able to cool down the coolant effectively, then the problem lies within the motor. Using a higher concentration of water might help as water is a better medium to transfer heat.
Front mount intercoolers usually do more harm then good when it comes to cooling. It not only blocks some airflow to the radiator, but it also heats up the air before it gets to the radiator. While this air should still be cooler than the water going into the radiator, using hotter air isn't as effective. If this becomes a problem, using a larger radiator may be a solution as it slows down the water so that there is more dwell time within the radiator where it can cool longer before it goes back to the motor.
Cooling intake air tempurature is not going to make much of a difference if any to the engine temperature. NOS would probably actually make it hotter as it will require more fuel be burned with it and thus release more energy(heat) into the block.
If you do only street driving, and your cooling system is in good working order, you should not run into issues with overheating. Having a turbo in that of itself doesn't introduce more heat. But running boost for long periods of time will.