So I had a fun shake down day at WSIR on Friday with my 2007 coyote swapped car. a little background on the car which will eventually lead to my question. the chassis is an 07 Shelby GT that had a high mile Vortech supercharged 3V and was pulled June of last year for a coyote swap. I built a naturally aspirated gen2 based 5.1L coyote mated up to a built tr-3650. The engine features 11.5:1 compression with ported heads and locked out custom grind comp cams. on a dynapack hub dyno the car makes 525/391 to the wheels while the rev limiter is capped at 9400. I added a ECT sensor into the water outlet housing on the driver side cylinder head in addition to the CHT sensor on the back of the passenger side head to read temperatures to the ECU.
Getting to the question. At WSIR on Friday ambient temp was around 109 degrees. This was the first real testing day in summer heat to evaluate cooling performance. longer sessions of the day were between 20-25 min. Most of the temp maximums for the day were ok, Trans - 210, diff - 250, oil - 260. for triple digits the car did awesome however coolant temp was very high especially in the hottest part of the day around 232-235. I have following cooling system setup - fluidyne radiator, 190 degree t stat, 13/14 gt500 fan, and shrouding around coolers. My oil cooler is divorced from the cooling system and is oil to air.
What are some other things to try to get coolant temps down? I've done most of the normal cooling system upgrades but am still running hot. My thoughts were to either roll the radiator forward 20 degrees like vorshlag did on their 2010 spec iron coyote swap car and/or get a custom radiator made that's much thicker with dual slim fans. What are your thoughts?
Getting to the question. At WSIR on Friday ambient temp was around 109 degrees. This was the first real testing day in summer heat to evaluate cooling performance. longer sessions of the day were between 20-25 min. Most of the temp maximums for the day were ok, Trans - 210, diff - 250, oil - 260. for triple digits the car did awesome however coolant temp was very high especially in the hottest part of the day around 232-235. I have following cooling system setup - fluidyne radiator, 190 degree t stat, 13/14 gt500 fan, and shrouding around coolers. My oil cooler is divorced from the cooling system and is oil to air.
What are some other things to try to get coolant temps down? I've done most of the normal cooling system upgrades but am still running hot. My thoughts were to either roll the radiator forward 20 degrees like vorshlag did on their 2010 spec iron coyote swap car and/or get a custom radiator made that's much thicker with dual slim fans. What are your thoughts?
Last edited: