Help guys.

My primary complaint I have with my GT2 is the excessive understeer. In slow tight corners the front tires give out way too early and pushes wide constantly.

I have driven several stock GT3s around the same corners and they bite tenaciously compared to my car.

My car is dead stock with MPS2, except the front end has been lowered slightly, maybe 1/3". What can I do to increase the grip of the front end, but not at the expense of reducing rear grip (tightening rear bar)?

Heck my M3 and Boxster go around the same corners much quicker than my GT2. I am confused and frustrated with my car's handling performance.

Thanks
George

 

Have you checked/changed the tire pressures ?

 

get an alignment done.

 

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.

 

In additon to the suggestions noted above - look at your sway bar settings. An adjustment of your bars can help dial out the understeer.

You may also want to post where you are located and you can get some recommendations from the board of someone close to you who can set your car up. There is a night and day difference in how it will handle once set up properly.

JCM

 

Front: 35
Rear: 39

Are there better choices for the street?

 

I am in the Sacramento metro area.

My rear sway bar is in the center position. Should I raise the front end back to the factory height or leave it and worry about the other settings?

Should the GT2 handle very similar to the GT3 for aggressive street driving?

Thanks
George

 

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.

 

a past co-worker and great friend of mine, Bob Vanderpaardt works at Niello Porsche in Rocklin. He aligned both of my track cars and is very knowledgable for setting up a car for the track, or street. Tell him I sent ya!!

 

Brian,

Do they use their own machine or do they sub it out elsewhere? Also, do you recommend the factory alignment settings or a derivative?

Thanks
George

 

They have their own alignment rack, its not sent out.

Bob would be the actual guy that would align the car, in fact I just spoke to him to make sure posting his name would be cool. I would suggest calling or stopping by Niello and talk with him further.

I lowered my car and drilled the strut mounts a little to give it as much negative camber as possible for the best handling but it eats up tires. If you don't plan on going to the track and don't want to wear down your tires quickly, the factory setting alignment can still be done although it can be set up a little more aggressively if you'd like. Just be on the same page with the mechanic, tell him what your after. And of course, take care of him

 

George,

Go over to Roger Kraus Racing website. http://www.rogerkrausracing.com/
Click onto Technical Sheets and then click Understeer/Oversteer Correction.

 

Thanks for the tip Chad!

 

Try bumping your front tyre pressure up to around 40 or so. It will make the car more neutral. But get ready to correct fast as the GT2 will really snap around on you when it does go I am sure. Higher front pressures allow for more oversteer, while higher rears promote understeer. Iwould also follow the advice above and get this car aligned and corner balanced properly. Hope this helps.

 

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.