Originally Posted by
jlfx car audio
Cleveland ,snowbirds, southern nationals , roar nationals all run 5 or 6 min heats and mains . So that’s where I see the smaller packs being used in the Amain cars that I know . But reguardless of what usgt drivers are using , if it works and is preferred in 17.5 why wouldn’t it work in usgt where the power demand is lower ?
a 21.5 will have plenty left after 8 minutes even with a 4200 pack, I ran 8 minutes with a shorty 4,000 pack with my old GZ2 with not that much drop on voltage , with the same car with a 5,000 shorty pack ran 6 minutes with a 5.5t motor. In 21.5 is all in the mind if you need a high capacity pack
I go by the lap times of I don’t see a drop on the last minute or so of the run in the lap times then I don’t worry about voltage .