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

Anyone else totally uninspired by the braking of their 996tt? (brake question inside)

Old May 15, 2009 | 07:04 AM
  #16  
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Originally Posted by heavychevy
... I don't think the GT3's ever have great test braking results but on the track they eat up all the room you gained on the straight. At least for me they have. Very frustrating.
Just a few comments on this...

First, you always lose distance in the braking zone to the car behind, even if the time separation between you doesn't change at all, because you are both going slower.

Second, the GT3 has 10% less mass than the 996TT, so it can brake down in shorter distance.

Third, the GT3 handles better than our cars, and in particular can scrape off speed with a little sliding in the corners easier than the 996TT.

Just my 2 cents, but I have stock brakes on my car and like them a lot. I prefer the Pagid Yellow pads for the track, which do require a fair amount of pedal effort, but I find that that makes them easy to modulate.

Jon
 
Old May 15, 2009 | 07:42 AM
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I know all of the above, but I've been on track with enough cars to know when more than usual distance is being made up in the braking zone, especially when you've left someone a mile back on the straight.

#2 I agree, they are lighter and that has a lot to do with it. But not all of it.

#3 Handling and braking are loosely related so the space eaten up in the braking zone has nothing to do with the GT3's handling. I'm talking high speed (140-160+ mph) into very slow (35-40 mph) zones where handling is not the issue, only stopping.
 
Old May 15, 2009 | 08:06 AM
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Originally Posted by heavychevy
...
#3 Handling and braking are loosely related so the space eaten up in the braking zone has nothing to do with the GT3's handling. I'm talking high speed (140-160+ mph) into very slow (35-40 mph) zones where handling is not the issue, only stopping.
If the GT3 can handle more corner entry speed than you, it doesn't need to slow down as much. That was my point.
 
Old May 15, 2009 | 08:27 AM
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Originally Posted by ExclusiveTT
Seriously, there are two things that my M3s always had over the 996tt (or felt like it at least)

1. suspension feel. The m3 always felt like it handled much better (yes, my car had upgraded suspension, but even the factory suspension felt "better" than the suspension on this $150K car). The m3 just felt so nimble. Hopefully, this will be resolved with coilovers in the near future once I determine the best setup for me...

AND

2. BRAKE FEEL! I realize that the M3 is one of the best stopping cars ever made, but it shouldnt make a porsche turbo feel like Im stopping a semi truck... I dont know if im just not used to a 4wd car or if my brakes are in horrible shape, but I am very good about maintenance and know I have plenty of pad life left. Maybe I'm just not used to finally having a ton of HP and having to slow it down . In all honesty, I feel like there is brake improvement to be made even when coming to a traffic light from the speed limit. I figured that a good start would be a complete brake flush, a more aggressive pad (quiet enough for the street), and maybe stainless steel brake lines. Hopefully, this can point me in the right direction.

Usually, I start my search at tirerack.com, but they only offer one set of goodridge brake lines or complete brembo kits. I would like to stay away from a 2k+ brembo kit or the $2,200 performance friction kit if possible and I am not familiar with goodridge brake lines. Can ayone recommend a good set of SS lines and more aggressive replacement pads for the street and a good place to buy from? (any other suggestions in terms of helping brake feel would be appreciated)

Thanks!
IMHO
I own them both and I try to stay out of apple to orange comparisons and everything said here is correct but...

The M3 is much more predictable at its level of speed and the brake modulation is better-it is a much better balanced car out of the box.

The stock Turbo was designed with a different mission statement and you have to modify the suspension and brakes to keep up with a modified Turbo motor. The clutch hydraulics and accumulator was designed for a woman in high heels.

I hate my stock Turbo brakes and I'm never going to competitively track my car-that’s the job for a purpose built GT3R

See Mikelly's sticky: https://www.6speedonline.com/forums/996-turbo-gt2/127080-996-turbo-brake-information-diy-sorting-truth-fiction.html
 

Last edited by rolfjahn; May 15, 2009 at 12:24 PM.
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