captdistraction
GrumpyRacer
I've struggled recently with cooling on my new build. Here's the summary of what I have:
(old radiator seen here for mockup, was changed to the mishimoto for actual running)
I did some recent testing in 90-93* weather, and in 4-5 laps on a particular track (4530' elevation), I could get my oil to touch 290 degrees on a hot-side measurement (there would be a 7-13 degree cool side delta returning to the motor). It didn't get much higher
Grille change was worth 7 degrees in water temps but not as much on oil temps. The mechanical water pump was slightly better water temps
While I feel I've thrown everything at it, I'm not sure what would be the recommendations to improve this further.
Here is some data:
Session 1, lap 3 (electric water pump, mesh grille, but did have nomex radiator protector installed)
Session 2, lap 3 : (oem water pump, mesh grille, removed nomex, 2 degrees cooler track temp)
In my examples, I'm only 3 laps in and the car's still warming, but I thought it would provide meaningful insight (each session I shut it down on the next lap and brought it in)
What recommendations are there to cool this thing more effectively? I did experiment with short shifting, but that just made me slower and not noticeably cooler.
- 470rwhp Coyote engine, 7800rpm max rev
- Fluidyne and Mishimoto radiators (the cores are identical)
- Oem thermostat
- Kooks jet-hot coated headers, other heat control materials around the engine
- Fully ducted radiator boxing on the front side, seals to bumper cover and to radiator
- GT500 radiator fan
- Setrab 948 cooler setup in radiator box, 2" gap to radiator
12 boss 302S style grille (more open than 302S) and full mesh grilles - OEM and Meziere electric water pump.
- Tiger racing vented hood
(old radiator seen here for mockup, was changed to the mishimoto for actual running)
I did some recent testing in 90-93* weather, and in 4-5 laps on a particular track (4530' elevation), I could get my oil to touch 290 degrees on a hot-side measurement (there would be a 7-13 degree cool side delta returning to the motor). It didn't get much higher
Grille change was worth 7 degrees in water temps but not as much on oil temps. The mechanical water pump was slightly better water temps
While I feel I've thrown everything at it, I'm not sure what would be the recommendations to improve this further.
Here is some data:
Session 1, lap 3 (electric water pump, mesh grille, but did have nomex radiator protector installed)
Session 2, lap 3 : (oem water pump, mesh grille, removed nomex, 2 degrees cooler track temp)
In my examples, I'm only 3 laps in and the car's still warming, but I thought it would provide meaningful insight (each session I shut it down on the next lap and brought it in)
- My thoughts are:
Am I not getting enough air through the radiators? - Is that flow restriction on the back side of the radiator (the oem fan and shroud, despite the gt500 flap vents)
- or is it on the front (the bumper cover, the radiator being shrouded by the oil cooler, not enough oil cooler exposed to grille)
What recommendations are there to cool this thing more effectively? I did experiment with short shifting, but that just made me slower and not noticeably cooler.