Poor Handling On Curves At High Speeds
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yeah i dont think i was taking that curve over 110, if im not mistaken it was between 90-110mph....i will take the car to a professional....it appears there is a high performance porsche mechanic in orange county who may be able to diagnose this problem, but it appears based on this thread, lowering springs alone with a gt3 rear sway bar should fix this problem, and i also agree with those who posted about 130mph+curves and the car not handling well...but as i noted my car is stock height, very stiff, which i dont mind.....any recomendations on lowering springs or gt3 sway bars.....thanks to all of you who have helped me with this concern.....
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Does the JIC have two springs per shock? The tender springs in the Pss9s are so awesome for the street. Sucks up little undulations like a BMW and then it gets stiff. I really like it, and also agree with everyone that Pss9s set too low tend to bottom out and be couterproductive to good handling.
Also consider the H&R rear bar, I believe it's about the same as GT3?
Finally let's not forget to mention that rear engine Porsches in general have a very peculiar handling (slow in, fast out) that can be very gratifying and fast to the initiated, but generally requires real pro to be uber fast. IMO Most people will be faster around a tight track in an M3 all other things being equal (like HP).
The general consensus seems to be 2 car lengths earlier braking and 4 car lengths earlier coming out on the gas to plant the back and rocket you out of the corner. this wreaks havoc in races with cars behind you.
the have to brake early with you, and wait longer than you to get on the gas.
Also consider the H&R rear bar, I believe it's about the same as GT3?
Finally let's not forget to mention that rear engine Porsches in general have a very peculiar handling (slow in, fast out) that can be very gratifying and fast to the initiated, but generally requires real pro to be uber fast. IMO Most people will be faster around a tight track in an M3 all other things being equal (like HP).
The general consensus seems to be 2 car lengths earlier braking and 4 car lengths earlier coming out on the gas to plant the back and rocket you out of the corner. this wreaks havoc in races with cars behind you.
the have to brake early with you, and wait longer than you to get on the gas.
Last edited by Turbo Fanatic; Jun 10, 2007 at 03:37 PM.
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My suggestion is to schedule an appointment with Arling at Lucent and have Tom check out your alignment and suspension. They have the most advanced equipment and Tom is a guru in alignment and suspension.
I would say they set up a large portion of the SoCal Porsches, especially amongst the GT2 and GT3 crowd.
It is most difficult to diagnose the problem with your car without looking at it or driving it. What you describe could be a number of things.
I would say they set up a large portion of the SoCal Porsches, especially amongst the GT2 and GT3 crowd.
It is most difficult to diagnose the problem with your car without looking at it or driving it. What you describe could be a number of things.
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Just to add one more data point to this thread (from a fairly new Aussie 996TT owner and forum member), I had my car on a Sydney racing circuit recently (Eastern Creek for any fellow Aussies here), which has a high speed turn at the end of a long straight. My car is dead stock with stock Australian/Euro spec suspension (which I think is probably the sports suspension option over in the US), and on this day was running on normal street tyres (Michelin PS2s), with factory alignment settings.
Anyway, I found the car could happily turn into this corner at ~120mph, and happily apex at around 110mph (the corner get's tighter as you approach the apex so you have to back off as you approach it). Nice and stable from turn-in through apex and then also under power out of the corner. None of the type of problems being described by the original poster in this thread.
Bottom line, I think the stock (sports?) suspension is not so bad at all, and certainly should not have the problems being described here. I've owned a lot of other sports cars to compare to as well and have also built up modified cars that I raced etc, so I have a bit of experience to draw upon in making this statement.
Therefore, first off go with option A) and have everything checked out, especially look at the alignment, and also (which no one has mentioned yet?) check all your tyre pressures and make sure that all 4 corners are at the correct pressures! If after this you are still not happy then only at that point would I investigate the modification options that have been suggested.
My 2c worth.
Cheers,
Beej
Anyway, I found the car could happily turn into this corner at ~120mph, and happily apex at around 110mph (the corner get's tighter as you approach the apex so you have to back off as you approach it). Nice and stable from turn-in through apex and then also under power out of the corner. None of the type of problems being described by the original poster in this thread.
Bottom line, I think the stock (sports?) suspension is not so bad at all, and certainly should not have the problems being described here. I've owned a lot of other sports cars to compare to as well and have also built up modified cars that I raced etc, so I have a bit of experience to draw upon in making this statement.
Therefore, first off go with option A) and have everything checked out, especially look at the alignment, and also (which no one has mentioned yet?) check all your tyre pressures and make sure that all 4 corners are at the correct pressures! If after this you are still not happy then only at that point would I investigate the modification options that have been suggested.
My 2c worth.
Cheers,
Beej
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Originally Posted by heavychevy
I dont know if anyone has eluded to this but it does also depend on how fast he was going and trying to turn at the same time. You shouldnt be trying to go around curves at 130+ miles an hour the car is going to feel like it's floating because you dont have the right downforce to take corners at that speed. There is way too much lift, this does not make the car bad at handling, but you still have to remember your driving a street car and taking highway turns at speeds way to high you are not going to be able to control the car like you will at 20 mph. At that point it becomes stupidity that needs to be resolved. (I know because I've done it, once and never again)
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I would not do just springs. Do coilovers and get a good alignment. Ask them to put an aggressive street and light track alignment on it. A bit more negative camber and a rear bar, all of this will do wonders. Be carefull on first run out though as car will have much less understeer. Good luck.
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