I spent last Saturday at Capitol and Sunday at MIR getting significant seat time in the 1320 for the first time since 2022. This car has always been very sensitive to heat soak from being stuck creeping forward in long staging lanes, or when I've run two classes that are back-to-back and basically hot-lapping me.

How are you adjusting dial-ins under these conditions?
--> Do you have enough data to be able to predict (reasonably) accurately how much you'll slow down?
--> Are you taking a s.w.a.g. about how much to change the dial-in simply cuz you know the car's gotten hot?

I got in 10 passes on Saturday and all I can tell you is... yes, the car gets progressively slower as the cool-down intervals get shorter. Disregarding some changes in the DA for the time being, the car ran the following when "cold"... 45-60 minutes between passes:
11.857
11.856
11.876

When the cool-down interval was only 20-30 minutes:
11.978
11.946

When I intentionally hot-lapped the last 3 passes only about 8 minutes between them:
12.228 (spun)
12.024
12.059

So I'm wondering how other people account for this variability. Thx


2021 Challenger 6.4L Scat Pack 1320
100% stock: 1.680, 11.894 at 113.75 (DA 175 ft)
weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)

1973 Challenger 452 ci street/strip [2008]
pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)