If you are thinking about suspension mods for the track read this first
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If you are thinking about suspension mods for the track read this first
I knew the street car as good......but not this good 
http://www.mustang50magazine.com/fea...s/viewall.html
http://www.mustang50magazine.com/fea...s/viewall.html
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Joined: May 25, 2011
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From: St. Joseph, MI
Even more important, no matter who was driving, the gap between the street and race cars was a consistent 5 seconds per lap. For those familiar with Willow Springs, the street car turned a low-1:31 lap, and the race car was in the mid-1:26 range, both with Paul at the wheel.
What the Race Keeper data makes clear is the race car corners faster through long sweepers, but has no advantage in the slower corners. Also, the race car's better braking allows it to drive on a course that effectively has longer straights than what the street car experiences; that's part of why the race car has higher corner entry speeds.
Why is the race car faster in high-speed turns? Aero. The racer sits lower and the G-Stream vented hood and splitter kill much of the front end lift that robs streets cars of their high speed manners, while the rear wing helps plant the rear. From the driver seat this feels like a calmer, more reassuring chassis, which is a major aid to performance when bending in at 139 mph. It also means a faster exit speed out of the sweeper and onto the straight, which gives a big head start in raising the top speed, which is where you really make inroads on the lap time.
What the Race Keeper data makes clear is the race car corners faster through long sweepers, but has no advantage in the slower corners. Also, the race car's better braking allows it to drive on a course that effectively has longer straights than what the street car experiences; that's part of why the race car has higher corner entry speeds.
Why is the race car faster in high-speed turns? Aero. The racer sits lower and the G-Stream vented hood and splitter kill much of the front end lift that robs streets cars of their high speed manners, while the rear wing helps plant the rear. From the driver seat this feels like a calmer, more reassuring chassis, which is a major aid to performance when bending in at 139 mph. It also means a faster exit speed out of the sweeper and onto the straight, which gives a big head start in raising the top speed, which is where you really make inroads on the lap time.
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pretty amazing that there was only a 5 sec difference between the 2, 302s which has aero, suspension, weight and a track alignment.
WSIR is my home track and I can't believe he was able to hit 1:31 with just tires. I was only able to turn a 1:40, mainly bc of the uneasy floaty feeling you get going around a turn at 120+. My rss c/o fixed that and I'm able to hold a higher speed through the sweeper confidently.
that was a great review, and I can't wait to get out there this month for a time comparison of stock vs modified...
food for thought, a lot of s2k's that are track prepped(aero, weight) and no power mods run in the low 1:3x's and they only reach a top speed > 110
WSIR is my home track and I can't believe he was able to hit 1:31 with just tires. I was only able to turn a 1:40, mainly bc of the uneasy floaty feeling you get going around a turn at 120+. My rss c/o fixed that and I'm able to hold a higher speed through the sweeper confidently.
that was a great review, and I can't wait to get out there this month for a time comparison of stock vs modified...
food for thought, a lot of s2k's that are track prepped(aero, weight) and no power mods run in the low 1:3x's and they only reach a top speed > 110
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