997 GT3 and RS Understeer! Alignment Question
05-08-2007, 08:52 PM
#61
Three Wheelin'
BRG88 in Oshawa is the shop I go to..they do great work...they race a 997 & 996 GT3 Cup, 997 is in the Rolex series.. if your in the Toronto area I would highly recomend going there for service if your having any trouble sorting the handling out on your 996 or 997.
05-08-2007, 09:09 PM
#62
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Originally Posted by NOBLEGT3
..
P.S my lotus Exige S is awesome right out of the box SUCKERS!!!!
P.S my lotus Exige S is awesome right out of the box SUCKERS!!!!
put on hoohoo's and try some nitron. you would not get out of the car
05-08-2007, 09:12 PM
#63
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Originally Posted by Bob Rouleau
Apex Late - yours was handling better than mine! Trail brake the snot out of the car - (I thought I was driving a vette for a while).
Push like a cow and use lift throttle get the car to nose back in.
Use throttle to provoke oversteer to get the nose pointed where I wanted to go.
Abuse my tires.
Was yoour ten mins of toe total or per wheel?
Push like a cow and use lift throttle get the car to nose back in.
Use throttle to provoke oversteer to get the nose pointed where I wanted to go.
Abuse my tires.
Was yoour ten mins of toe total or per wheel?
05-08-2007, 09:32 PM
#64
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997GT - the push was in the low speed corners. I doubt the wing had any effect.
05-08-2007, 09:40 PM
#65
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Originally Posted by Bob Rouleau
997GT - the push was in the low speed corners. I doubt the wing had any effect.
05-08-2007, 09:54 PM
#66
Originally Posted by mooty
are you on RA1, hoosiers or oem yoko's?
put on hoohoo's and try some nitron. you would not get out of the car
put on hoohoo's and try some nitron. you would not get out of the car
05-08-2007, 09:56 PM
#67
i think the other issue you all are having is your suspension geometry is similar to the cup cars that run 18 inch wheels...you have 19's so dont use their settings as a baseline....or conversely try 18's and see if the car feels better with the same set up you have now..
05-08-2007, 10:02 PM
#68
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Originally Posted by NOBLEGT3
working my way up..had an aligntmen done,quicksilver exhaust and harnesses..still using stock yokos..tomorrow will be first dry track day. going to mosport
have fun...
you will find the yoko's heat cycle out quickly, tread is there, but no grip after a while.
you using 5pt harness with stock seat? did you dig a hole on seat cushion for substrap?
05-08-2007, 10:06 PM
#69
Originally Posted by mooty
have fun...
you will find the yoko's heat cycle out quickly, tread is there, but no grip after a while.
you using 5pt harness with stock seat? did you dig a hole on seat cushion for substrap?
you will find the yoko's heat cycle out quickly, tread is there, but no grip after a while.
you using 5pt harness with stock seat? did you dig a hole on seat cushion for substrap?
05-08-2007, 11:20 PM
#70
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Now that you guys have totally confused everyone else including yourselves...just shut up and drive! If you're half as good as then ya'll get around a little push 
05-08-2007, 11:50 PM
#71
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You know, another thing to think about. PAG added 10 mm of contact patch to the rear but not the front with these new cars. I know far more about E36 M3s than these porsches but when that happened with the E36 cars in 1996, it destroyed the car's balance. I think we are seeing the same thing here. But I'm shocked that PAG didn't give us the tools to dial it out.
05-09-2007, 12:34 AM
#72
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Originally Posted by frayed
You know, another thing to think about. PAG added 10 mm of contact patch to the rear but not the front with these new cars. I know far more about E36 M3s than these porsches but when that happened with the E36 cars in 1996, it destroyed the car's balance. I think we are seeing the same thing here. But I'm shocked that PAG didn't give us the tools to dial it out.
i suppose you can move to 245 front and 295 rear? just a WILD conjecture...
but i wont do that until i exhaust the more common methods with alignment and bar settings.
05-09-2007, 01:09 AM
#73
Drifting
Could the problem you're facing be related to the track surface? When I did National Tour in seattle, I was surprised at how much oversteer my car had on asphalt as compared to the neutral handling on concrete that my car was setup for. Just a thought.
05-09-2007, 08:33 AM
#74
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FC - you could be right. At a previous event in the rain on a different track my car was great. A week later on a grippy dry surface it pushed a lot. I will test on another dry track this weekend and report. On the other hand, we will use the Calabogie track frequently so we all need a set up that works or, watch ourselves get passed by the 996GT3s we sold.
05-09-2007, 10:06 AM
#75
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Originally Posted by Unitah
Apex Late,
OK, here is what I have. I took the measurements before reading your last post, so, I went to your original request of the fender. I am NOT happy with the results because it seems as though my car is leaning, hahaha.
Data:
-Measurements taken inside perfectly flat and level garage.
-1/2 tank of fuel
-no driver
-GT3 seats (-about 50 lbs) + 997 RS Cage (+ 37 lbs)(for weight and balance purposes)
Left Front: 25 5/8"
Right Front: 25 7/8"
Left Rear: 26 1/8"
Right Rear: 26 3/8"
OK, here is what I have. I took the measurements before reading your last post, so, I went to your original request of the fender. I am NOT happy with the results because it seems as though my car is leaning, hahaha.
Data:
-Measurements taken inside perfectly flat and level garage.
-1/2 tank of fuel
-no driver
-GT3 seats (-about 50 lbs) + 997 RS Cage (+ 37 lbs)(for weight and balance purposes)
Left Front: 25 5/8"
Right Front: 25 7/8"
Left Rear: 26 1/8"
Right Rear: 26 3/8"
I think that I'm going to have the shop work from the ground up where ride height is concerned. I suspect that I will find that my car has a rake problem as well when all is said and done. Its booked for Thursday so I will report on Saturday after I have completed the service and the test.
Thanks for your help.