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Christian1LE · 10-07-2023, 08:11 PM

So A7's are basically time trial/qualifying tires. You can get 1 good lap out of them, maybe 2. After that they heat up and get slow.

Also Hoosier recommends those tire pressures to cover their own ass if they were to explode. If you ask anyone competitive they will tell you they are running those things at like 30 PSI hot.

I run R7's and I start at 24 PSI cold and aim for 29 hot for time trials. From what i've seen at the track SC3R's are very similar in lap times to a Hoosier R7. Pirelli has a big advantage too that those tires are much lighter than hoosiers so you're actually getting less HP loss at the wheels with Pirellis

But you're right that A7's are definitely not the right tires for HPDE, R7's would have been a better choice.

10-07-2023, 08:11 PM	#2
Christian1LE Drives: 2004 BMW 330CI, 2022 1SS 1LE Join Date: Dec 2021 Location: NC Posts: 776	So A7's are basically time trial/qualifying tires. You can get 1 good lap out of them, maybe 2. After that they heat up and get slow. Also Hoosier recommends those tire pressures to cover their own ass if they were to explode. If you ask anyone competitive they will tell you they are running those things at like 30 PSI hot. I run R7's and I start at 24 PSI cold and aim for 29 hot for time trials. From what i've seen at the track SC3R's are very similar in lap times to a Hoosier R7. Pirelli has a big advantage too that those tires are much lighter than hoosiers so you're actually getting less HP loss at the wheels with Pirellis But you're right that A7's are definitely not the right tires for HPDE, R7's would have been a better choice.