What Wheels/Tire set up on your GT body race car? |
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What Wheels/Tire set up on your GT body race car? |
jmz |
Aug 18 2017, 11:21 AM
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#1
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Member Group: Members Posts: 165 Joined: 11-April 16 From: Lone Star State Member No.: 19,886 Region Association: None |
What's everyone running for wheels and tire size on their race cars?
Do you go with a staggered setup or square? What size wheel? What size tire? What do you run for rains? So far I've tried 15x8&9 with 245x40x15 DOT comp tires on all four corners Maxxis Victra RC-1 16x10 with slicks on all four corners. Dunlop 265x60x16 slicks I'm most likely going to run 16x8&9 next weekend with 245x45x16 on all four corners with RA-1s. I've got some 15x9&11 that I may try down the road with my local club and when I run COTA with SVRA later this year I'll have to go to 15x8 on all 4. I'm new to this car and am still learning it and learning to race. |
campbellcj |
Jan 31 2018, 10:29 AM
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#2
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I can't Re Member Group: Members Posts: 4,545 Joined: 26-December 02 From: Agoura, CA Member No.: 21 Region Association: Southern California |
Old-ish thread brought back but nothing wrong with that IMO...
While I have no 'scientific evidence' I am leaning with Tony that the Sheridan (or similar) ducktail spoilers have little to no effect. I just removed the 6" one from my car as I never really liked the looks and it had some annoying gelcoat surface defects as well. If anything, I 'may' have noticed a slight increase in stability in Turn 8 at Big Willow. But I seldom drive this car at Big Willow...it's a car for short technical tracks. Just looking at the car's profile and windshield angle it seems logical that's a dead/negative pressure area as the airflow over the body is going up and out...same reason we have no positive cooling airflow thru our engine lids/grills. Now I'm bummed my GT lid and paint are drilled and scarred but f/g is relatively easy to fix vs metal... I definitely DO notice a difference running the deeper Sheridan front spoiler/splitter vs. the two shorter spoilers I've got. The (negative) impact on brake cooling is immediately evident and ducts are mandatory with that one. |
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