996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

My GT2 understeers like a pig

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  #16  
Old 02-19-2006, 10:25 AM
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Rear pressure sounds ok, I'd lower the fronts to 33 and see how it goes. GT2's do need a good alignment. Once done, it's going to transform the car.
 
  #17  
Old 02-19-2006, 10:45 AM
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Originally Posted by vincentdds
You have to get your car align and corner balance. Nothing else. The factory spec is out of wack. I felt the exact same way 1st time out in the track.
My shop even found 2 wooden blocks remained between the 2 front springs that was used for security during air shipping.
Damn Vince you DID get a brand new car. So much for the dealer doing the pre-delivery inspection when it arrived here.
Lucky for you I guess the original owner just bought it to beatify his garage ehh.
George def. get the alignment checked and corner balanced ASAP !

Bajo
 
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Old 02-19-2006, 11:57 AM
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george took my p car to neillo they have been honest and provided great service and the have a brand new alingement rack..........i liked the service guys i made a piont of buying my wifes cayenne from neillo ... another great place in rocklin is salarno motor sports(no alingement he will suggest neillo... if your down town try ron at ibp motor sports..they did cornor balancing at one time.... and are alwaays fair
 
  #19  
Old 02-19-2006, 12:06 PM
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Originally Posted by BBGT2
Damn Vince you DID get a brand new car. So much for the dealer doing the pre-delivery inspection when it arrived here.
Lucky for you I guess the original owner just bought it to beatify his garage ehh.
George def. get the alignment checked and corner balanced ASAP !

Bajo
Bajo

Because of those blocks remain compressing in the springs I was at the track with 1 ring of spring on each front suspension and still manage to stay alive.
 

Last edited by vincentdds; 02-19-2006 at 12:10 PM.
  #20  
Old 02-19-2006, 12:10 PM
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Originally Posted by GeorgeJ
Is the dealer the best place for an alignment or a performance shop? Do I just use the factory settings or are there performance settings that are more ideal? Also, is the corner balancing as important as a good alignment?

Thanks.
George

Any Porsche shop can do alignment well. But it's better if you can find a specialist that can also do track prep as well.
You'll love your car real soon bud.
 
  #21  
Old 02-20-2006, 01:04 AM
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Thanks guys for all the feedback.

I am going to call a couple of performance independents as well as Niello for the alignment. I will probably go for slightly aggressive settings to help the handling further.

Is the corner balancing something the dealer can do as well?

Vincent, I can't wait to love my car again. I almost considered trading it for Gallardo a couple of months back. That car handles quite well with very little understeer, but is underpowered compared to the GT2.

Thanks again guys!
 
  #22  
Old 02-20-2006, 03:54 AM
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George clearly something is a little off... The sway bar settings are just fine and no GT2 we've ever had in the shop has "understeered" like a pig.. or a TT heh.. Do what Brian says and get a proper alignment done first and then see what's up...
 
  #23  
Old 02-23-2006, 02:00 PM
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Originally Posted by vincentdds
George

Any Porsche shop can do alignment well. But it's better if you can find a specialist that can also do track prep as well.
You'll love your car real soon bud.
Dealers will not traditionally do a track or agressive street alignment for you. Dealers are more concerned about liability than performance. Understeer is dialed into all performance cars to protect the bozo who doesn't know how to push or drive their cars. To these guys oversteer is an un-natural act.

If you want a top notch alignment, bring your car down to Southern California to Erik Messley of EMI Racing. He sets up plenty of Speed series cars and is a professional driver himself. Call Erik at 714-713-9096. He will match your car's set up to your skills and style. I don't know of a more honest guy who knows this black art better than Erik. He was the hidden card that got Paul Mumford to the podium before his untimely death.

I hope that this helps.

Brad
 
  #24  
Old 02-23-2006, 03:17 PM
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Brad,
He lives in the Sacramento area, not LA. Im sure your guy down there is great, but from completely reading what was posted, I doubt he'll drive down there for an alignment.

I would still go to the dealer and tell them what your after, ask for the print out when the car is done. Then you'll know
 
  #25  
Old 02-24-2006, 12:26 AM
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Originally Posted by Brian Haske
Brad,
He lives in the Sacramento area, not LA. Im sure your guy down there is great, but from completely reading what was posted, I doubt he'll drive down there for an alignment.

I would still go to the dealer and tell them what your after, ask for the print out when the car is done. Then you'll know
Understood Brian.

You would not believe how many people ship their street and race cars to Erik from all over the country. He is well worth the money and time that it takes and is one of the most meticulous and honest guys that you will find in the chassis and suspension biz.

I wish you luck with your local dealership.

Brad
 
  #26  
Old 02-24-2006, 07:33 AM
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I had my GT2 aligned by the dealer a year ago, and I remain amazed at how well it handles. However, I would like to see what are considerered good all around street specs, especially camber, to compare to mine. As I understand it, GT2 specs are different than TT.
 
  #27  
Old 02-24-2006, 10:30 AM
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Originally Posted by Zippy
I'm no track expert, but I believe you got it backwards. Higher pressure = more ballooning = less contact = less traction. Therefore, harder front tires = less front traction = more understeer. I was thinking his rear preasures were a little low. Should be 44 hot. This would make the rears slide around a little more.
TCM was right. The rule of thumb is to add air to the end that you'd like to stick more.

http://www.tirerack.com/tires/tirete....jsp?techid=58

http://rogerkrausracing.com/overundr.html
 
  #28  
Old 02-24-2006, 11:13 AM
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does it have stock wheels
 
  #29  
Old 02-24-2006, 02:25 PM
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Hi guys,

My car is completely stock including the wheels.

What alignment settings can be adjusted on the factory suspension? Camber? Toe? Caster?

What are the factory alignment specifications and what would be a slightly aggressive setting that would not sacrifice the tires too much? My ultimate goal is to have the car as neutral as possible.

TIA.
 
  #30  
Old 02-24-2006, 08:52 PM
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Originally Posted by VoltesV
TCM was right. The rule of thumb is to add air to the end that you'd like to stick more.
Why then, at the track, when the tires get hot(ter than 36/44), they start sliding around more and when you let some air out to get back to 36/44 they stick much better?
 


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