GT3RS Understeer Cured (and how)
08-06-2007, 06:07 PM
#17
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I had the same experience. I went through 2 sets of the 19" MPSC's and as soon as I changed to 18" with 245 in front the car went from understeer to oversteer.
Now I am running Cup/RSR suspension with Pirelli slicks
I have 2 sets of BBS 18" and several sets of Hoosiers available if anyone is interested.
Now I am running Cup/RSR suspension with Pirelli slicks
I have 2 sets of BBS 18" and several sets of Hoosiers available if anyone is interested.
08-06-2007, 08:44 PM
#18
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Originally Posted by mooty
email me when the wheels are on your and james' cars.
i like to see them.
and when those nice looking wheels drop to 2800/set, i will take 3 sets.
i like to see them.
and when those nice looking wheels drop to 2800/set, i will take 3 sets.
08-06-2007, 09:13 PM
#19
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Bob,
The tires rotating on the rim is not a Hoosier problem alone, it has happened with the Cups also. Alot of Club Racers are having this problem, it has more to do with the type of rims and a "heavy" car with very grippy tires.
Try lighty bead-blasting or sanding the inside of the rim were the tire touches the medal and use AquaNet(don't laugh)hair spray as the wetting agent when you mount the tires.
This has helped many a racer but some are still having the problem.
Another trick is to balance the rim without the tire on it and don't worry about balancing the rim and tire, it helps cut down on vibrations when the tire moves.
The tires rotating on the rim is not a Hoosier problem alone, it has happened with the Cups also. Alot of Club Racers are having this problem, it has more to do with the type of rims and a "heavy" car with very grippy tires.
Try lighty bead-blasting or sanding the inside of the rim were the tire touches the medal and use AquaNet(don't laugh)hair spray as the wetting agent when you mount the tires.
This has helped many a racer but some are still having the problem.
Another trick is to balance the rim without the tire on it and don't worry about balancing the rim and tire, it helps cut down on vibrations when the tire moves.
08-06-2007, 09:36 PM
#21
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i have steel.
08-06-2007, 09:53 PM
#22
Originally Posted by peloton
Bob and mooty,
Are you guys running steel brakes to fit the 18's or have you found 18" rims (like Fikse's?) that clear the PCCB's?
Thanks.
Are you guys running steel brakes to fit the 18's or have you found 18" rims (like Fikse's?) that clear the PCCB's?
Thanks.
Good question. I'm also interested. Which 18" rims will clear PCCBs?
08-06-2007, 09:55 PM
#23
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Originally Posted by gweedo911
Good question. I'm also interested. Which 18" rims will clear PCCBs?
08-06-2007, 10:06 PM
#24
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I am using cast iron rotors, no problems with the 18 inch Fikse wheels.
08-07-2007, 01:17 AM
#26
18" Hoosiers
Bob, were you using 305 or the 315's in the rear? Also, can you comment on the rear wing settings you have used at both of your tracks? Specifically, what differences have you noticed in handling when using agressive wing setting vs. neutral.
08-07-2007, 09:49 AM
#27
Originally Posted by mooty
bob, this is great to hear.
as i PM'd you before that i was about to either buy a 996gt3 to add to my RS or just sell the RS b/c i never clicked with it. but with my RA1 in 18" the car changed completely. i have factory track setting and it is very neutral with mid corner high speed push and it does push a bit more around slow haripins. at that point i just slide the car or do full lift.
remember, RA1 is not as sticky as hoohoo or mpsc at their best, but RA1 is very consistent and predicatable. you can't have them all.
btw, eric also found his RS transformed after he dumped the 19" cups.
as i PM'd you before that i was about to either buy a 996gt3 to add to my RS or just sell the RS b/c i never clicked with it. but with my RA1 in 18" the car changed completely. i have factory track setting and it is very neutral with mid corner high speed push and it does push a bit more around slow haripins. at that point i just slide the car or do full lift.
remember, RA1 is not as sticky as hoohoo or mpsc at their best, but RA1 is very consistent and predicatable. you can't have them all.
btw, eric also found his RS transformed after he dumped the 19" cups.
