Help cooling 408 stroker
I tried the champion shround/fan assembly, a flex a lite high output, and finally an HHR fan. I have a magnum based 408 with a high flow pump, 180 'stat, champion 22" radiator, etc. All brand new. My car would idle all day in 100 degree temps at ~185 max. But it would slowly overheat with city driving and QUICKLY overheat on the highway. Ive had it at 240 degrees before i got stopped.
I've tried 50/50 mix, 50/50 with water wetter, straight water with water wetter, etc. I tried it with a stock pump and high flow pump.
I finally restricted the HUGE 1" bypass hose and put a 3/8" hose on it. That in theory forces more water through the rad. And reduces the hot water recycling back into the engine. My car runs 200 max now on the highway after some hard runs.
I tried the champion shround/fan assembly, a flex a lite high output, and finally an HHR fan. I have a magnum based 408 with a high flow pump, 180 'stat, champion 22" radiator, etc. All brand new. My car would idle all day in 100 degree temps at ~185 max. But it would slowly overheat with city driving and QUICKLY overheat on the highway. Ive had it at 240 degrees before i got stopped.
I've tried 50/50 mix, 50/50 with water wetter, straight water with water wetter, etc. I tried it with a stock pump and high flow pump.
I finally restricted the HUGE 1" bypass hose and put a 3/8" hose on it. That in theory forces more water through the rad. And reduces the hot water recycling back into the engine. My car runs 200 max now on the highway after some hard runs.
