S550 Code Orange GT500 Build Thread Profile - S550 Mustangs

[Junkyard Dog]

I run the Apex 20x11.5 squared setup with the 325/30-20 CRSV2s (I try to copy Stan all the time ) and they fit fine. I've seen indications of very, very minor rubbing on the rear inner fender liner but that's it. I think occasionally it may rub on the inner liner on a particularly hard corner. I have started using a 10mm spacer on the rear but am going to a 3mm because I felt the 10mm made the tire stick out too far. I've had good luck using a 19mm spacer up front.

So do GT500s not have cooling issues on track in spite of the supercharger and horsepower figures starting with a 7?

 

[Stan Whitney]

So do GT500s not have cooling issues on track in spite of the supercharger and horsepower figures starting with a 7?

I normally run about 10-15min at 9-10/10ths, in a time trial scenario. The 200TW tires overheat faster than the powertrain does. It is somewhat detuned in stock calibration to be able to run consistently for a decent length session. I've only had heat related power reduction once when I pushed hard for several laps in the worst Texas summer weather 100+ degrees.

Even in that weather the car will run 3-4 hard laps with no perceivable power loss (ie end of straight mph is unchanged). At last year's cooler (60-70) SCCA TT nationals at Pitt Race my best lap of the weekend came on lap 4, with each lap having 2 pulls to 140. The cooling package is very effective.

Lap 4 here and still pulling strong...

 

[Junkyard Dog]

Excellent video. Thanks for sharing it.