How important is it to have a larger radiator for a street car with a plan of 650whp
can i get away with the OEM one

 

just to keep it safe go with a bigger radiator like a koyo that always works.
just know it wouldnt hurt

 

i've seen people on here running that much power with stock radiators...but of course a larger one couldn't hurt

 

im running a koyo/fal fan setup. im currently trying to sell it though. Im going to be moving to a different setup now.

 

Are you not happy with it?
What setup ?

 

https://www.s2ki.com/forums/index.php?showtopic=656332

 

No I need a half size.

 

im running a mishimoto rad with 2 12 inch mishimoto fans, im running 10-15 degrees cooler

 

I am running a Visteon dual core radiator modified for 06+ fan switch and relocated AC condensor, custom aluminum fan shroud, SPAL fans. The fans flow so well that when they come on in traffic they are only on for a very brief period of time.

This radiator upgrade became necessary when I upgraded (doubled the area of) my Setrab cooler for my Rotrex supercharger. Since the Setrab is situated in front of the radiator my engine temps rose more than I would like with the stock radiator. The Visteon and the improved fans and aluminum shroud have more than solved the problem.

I also have a 330 mm long MOCAL oil cooler mounted on the crossmember between the radiator and the engine. This has helped a lot as well!

 

Forgot to add, I run 163 - 165 degrees on the highway, max of 202 degrees in traffic. (Fahrenheit for the International crowd!) This setup works great, I have 64,000 miles on my 2007, about 4,000 miles with the dual core radiator.

Enjoy!