996 Turbo / GT2Turbo discussion on previous model 2000-2004 Porsche 911 Twin Turbo and 911 GT2. Sponsored By Vivid Racing
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I had all 4 corners replaced with 997TT calipers and disks.
The 997TT comes with 6 pot calipers similar to the GT3 upgrade part.
So far the only difference is a slightly mushier brake pedal, which I assume is due to more brake fluid flow dictated by more brake pistons. I'm sure these things are much better heatsinks simply due to the bigger size. 18" stock wheels still fit as well.
Anyone know if the GT3 or 997TT come with a bigger piston in the master cylinder? That would stiffen the pedal back up.
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534 WHP on 91 octane (1.2 BAR): To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
2002 X50. Water cooled Tial GT2860RS, EVO Clubsport Intercoolers, Speedtech Y-Pipe, Boost Hoses, 60 lb Injectors, LWFW, RS Clutch, Remus Exhaust, DVs, GIAC FLASH To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. , 997 TT Brakes, FVD PSS9s, H&R Rear Bar, 19" Champion RG19 Monolites (15mm spacers front and rear), rollled fenders, ROTtec CF Lip and rear window spoiler, Strosek Wing.
I was told that the fluid volume in the stock 4 piston 996TT calipers equaled the volume of the 6 piston GT3 brakes owning to the fact of the varying piston sizes between the two. 997 brakes may have different volume. When I upgraded to the GT3 brakes I had no change in the brake pedal feel from stock.
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Larry
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 2002 996TT
Gone but not forgotten
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 1995 993C2 supercharged
1974 911S
I also did the rears. Maybe that's the difference?
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534 WHP on 91 octane (1.2 BAR): To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
2002 X50. Water cooled Tial GT2860RS, EVO Clubsport Intercoolers, Speedtech Y-Pipe, Boost Hoses, 60 lb Injectors, LWFW, RS Clutch, Remus Exhaust, DVs, GIAC FLASH To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. , 997 TT Brakes, FVD PSS9s, H&R Rear Bar, 19" Champion RG19 Monolites (15mm spacers front and rear), rollled fenders, ROTtec CF Lip and rear window spoiler, Strosek Wing.
Rears have bigger pistons...but just that shouldn't cause mushy pedal.
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Pete
'87 951, RIP
'00 996 C2, L92U AQ / IXAA IXRB IX54 M030 M375 M376 M436 M476 M601 M983 ... + 997 turbo brakes, GT3 mkII sway bars and F & R adjustable control arms, Bilstein Cup Car coilovers revalved for GT3 RS springs, Techart SSK, PSE
ARI, The bore size of the mastercylinder on the 997 is different than that of the 996. I blieve the Brembo rep pointed that out in my Fact and Fiction Brake thread that used to be a sticky. You might be able to just upgrade to the 997 mastercylinder, but there may be other issues with the ABS as well. I'd do some research before driving that car to hard with that current setup.
Mike
__________________ The 996TT is a glorified VW and will never be a serious track day contendor...
I'm carefully looking for any signs of too much rear brake bias and any negative effect on handling. So far I have seen none.
Could be the system has some air (not likely, but possible). The difference isn't dramatic. So far It's definitely an upgrade I recommend for the price.
Quote:
Originally Posted by Mikelly
ARI, The bore size of the mastercylinder on the 997 is different than that of the 996. I blieve the Brembo rep pointed that out in my Fact and Fiction Brake thread that used to be a sticky. You might be able to just upgrade to the 997 mastercylinder, but there may be other issues with the ABS as well. I'd do some research before driving that car to hard with that current setup.
Mike
__________________
534 WHP on 91 octane (1.2 BAR): To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
2002 X50. Water cooled Tial GT2860RS, EVO Clubsport Intercoolers, Speedtech Y-Pipe, Boost Hoses, 60 lb Injectors, LWFW, RS Clutch, Remus Exhaust, DVs, GIAC FLASH To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. , 997 TT Brakes, FVD PSS9s, H&R Rear Bar, 19" Champion RG19 Monolites (15mm spacers front and rear), rollled fenders, ROTtec CF Lip and rear window spoiler, Strosek Wing.
I forgot that when I first drove my car after the upgrade I did have the pedal go closer to the floor. My tech re-bled the system and that corrected the problem.
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Larry
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 2002 996TT
Gone but not forgotten
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 1995 993C2 supercharged
1974 911S
can you elaborate? What issues? Were they resolved?
Quote:
Originally Posted by stv951
had the same issue with my 996 TT, after i installed 997 TT complete fronts.
__________________
534 WHP on 91 octane (1.2 BAR): To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
2002 X50. Water cooled Tial GT2860RS, EVO Clubsport Intercoolers, Speedtech Y-Pipe, Boost Hoses, 60 lb Injectors, LWFW, RS Clutch, Remus Exhaust, DVs, GIAC FLASH To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. , 997 TT Brakes, FVD PSS9s, H&R Rear Bar, 19" Champion RG19 Monolites (15mm spacers front and rear), rollled fenders, ROTtec CF Lip and rear window spoiler, Strosek Wing.
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