wishihadatalon
20+ Year Contributor
- 2,616
- 76
- Aug 18, 2002
-
Grand Rapids,
Michigan
I'm also wondering the same thing, how much if any will an aftermarket rad lower the coolent temps? My temps used to always run at 196 before the FMIC install & now I usually see 206-210 while cruising. It will also go up slightly on WOT pulls. I would like to get the temps back down under 200 under cruise, & wondering if a new rad is what I need? I do already run water wetter.
One thing most people fail to remember is that when you take out all of that ducting to install the front mount, you have lost the ability to direct airflow. Buidling ducting and sealing off possible escape points for cool air before it passes through the radiator will help more than a core. A radiator can only do so well without a certain amount of air flow to pull heat.
http://www.max-boost.co.uk/max-boost/intake/intercooler_2JZGTE.htm I would use the info you can find here to figure something out.



