Quote:
Originally Posted by GrabTheWheel
Thanks for your input. Almost everyone at my local autoX on A7's swaps them at home and drives to and from the events. How much do you think that would effect the life? For me it's a 70 mile round trip and I already have to be there early so being able swap at home is convenient.
How would you describe the handling difference between the two? And how much faster are the A7's on a 1 min course?
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No idea about the street wear, I wouldn't put an extra 140 miles on them per event if I could help it (we're also 70miles out from our events), especially at the >3° camber we run. We show up half an hour to an hour early to do the swap unless we have a free rungroup before. I regularly put that mileage on my RE71R's for events, I haven't met anyone street driving Hoosiers, they get trailered or swapped.
More grip, with the meatier construction I find them a bit less responsive on initial turn-in than RE71R's in the same advertised size (they're definitely noticeably bigger), but less forgiving of mistakes, they have a less forgiving cliff where if you overstep you're gone, part of that is the chassis (FWD, under-tired) which might not carry over to the FRZ depending on how you're set up. I know that's contrary to how most people would describe switching to Hoosiers (sharper, more responsive, covers up mistakes), but I think that's old sentiment comparing a pinched street tire from the older generation vs a pinched Hoosier, nowadays modern 200TW fast street tires don't like the pinch so they're a lot more responsive than they used to be. The A7's reward precision and bravery and will make you faster than you think you are (which might be the covering mistakes sentiment).
Based on my local surfaces and RE71R's (decent concrete) easily 1s faster over 60s once we found the limit of the tires, looking back at past results we might actually be 2s faster than last year on a ~50s course, but again that chassis was under-tired and over-powered vs the FRZ which has a much better weight/power/suspension/tire balance.
Quote:
Originally Posted by steverife
What class do you run/want to run?
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Seems like OP is just playing with a local club, not building a competitive SCCA car. Probably having a lot more fun than we are, but reading the last two posts you're right, building for STX might be the ticket if OP hasn't even considered SCCA, especially not having experienced the fast 200TW tires before this and the added hassle of mounting up Hoosiers at the event. STX competition will be much tighter than Porsche clubs rather lax classes. Tires will also be much cheaper and last longer.