Originally Posted by Maxim_X

Not really. An aftermarket Heat exchanger does minimal work. GO for a beat run and feel your H/E, it wont even be that hot.
The do a dual pas, the dual pass allows the coolant to stay in the manifold for half the time. Their for the coolant does not heat soak and it keeps transferring the heat instead of becoming hot.

If yo go for a beat run after you install a dual pass you will notice your stock H/E will become hot. The after market H/E compliments the stock H/E when you have dual pass installed.

Somewhere in the words of ss.net past someone said that a after market h/e alone made a big difference. It's a common misconception.

Originally Posted by Maxim_X

Just so you know. With HP tuners you can turn your pump to 100% all the time such as mine is, You can also make it run when the car is in "ON" and not running to make in intake manifold cold to the touch in about 5 minutes. Try touching your intake manifold after 5 minutes.

I think that pump tuning along with the dual pass was the most effective of my cooling mods.

Originally Posted by hatrickstu

one of the guys that was making HE for our cars actually claimed that his dropped IAT2's by 50*, whether or not it was true, i have not seen any evidence of



a how-to on this would be greatly appreciated

Originally Posted by compucarnut

Not to hijack the thread, but I just did a cobra h/e, and anytime I pull over and put my hand to the cobra h/e, it feels completely cold...like fluid is not even running through it. Normal?

Originally Posted by ralliartist

Where is it that you make the changes for the pump to run 100% and in the ON position in HPTuners?

Originally Posted by hatrickstu

that will get the pump to run with it just on the ON position?

Originally Posted by hatrickstu

just did that, did nothing. no fluid flowing at on position, only when running

Originally Posted by SJSchafer

That is odd. With the settings as shown on the pic, you should be able to turn the car to the "on" position and hear the pump running. You can also open the VCM scanner, go to VCM controls>general. Click the intercooler pump on button.

Originally Posted by hatrickstu

i actuallyt think the pump might be acting up in general. im about to PM you some stuff

Originally Posted by n8g

Good stuff in here. I will make sure my tuner makes the adjustments. Although, I don't want the pump to always be running. Or do I?

Originally Posted by n8g

Good stuff in here. I will make sure my tuner makes the adjustments. Although, I don't want the pump to always be running. Or do I?

Originally Posted by rico

so even just having a second h/e and doing the pump set up to always be on helps? nothing wrong with having the pump on all the time?