Originally Posted by J-Rat

Problem 1, you drilled your thermostat.

Problem 2, it looks like you could drive a bus through all the paths AROUND the radiator. Seal those bad boys up, air will take the path of least resistance!

Originally Posted by rx7_FREAKKK

Im looking at your car... And that is No S4- S5 everything from what i can see

Originally Posted by Zell

Dude i dont think your cooling system is the issue, and you have taken similar steps like me when i was having the same issue, just from crusing my exhaust housing was redhot which indicates you either running really rich or lean, i have a power FC in mine however this may not be the same but in the setup it had 115C set to turn on the fans even though mine are manually turn on via swtich we changed the setting down to 85C and the car never went over 84C on the dyno, your probably asking why would that make a difference when the fans arent controlled by the ecu well apparently the correction map changes therefore your timing and fuel does aswell which maybe causing your rich mixture. As soon as i loaded up my car on the old setting it started to overheat but on idling it would be fine so year have someone look at the settings on the computer it could just be that.

I made a customer undertray, fitted efans to the oil coolers and none of it help untill this setting was changed then the oil woulnt get hot enough, the heating was the only concern i had when we put it on the dyno, untill the engine decided to swallow parts of the compressor wheel.

Panspeed do a themostat that opens at 68C, my friend is in Jap now and is picking me up one of these metal cooler necks with a aux port on it for a temp sensor, they dont list the themo on there website but i can try and find out what brand they offered my friend as i turned it down.
http://www.panspeed.jp/fc3s.html