Upgraded brakes on your 996?
#17
it would help, although caliper/hydraulic bias change is the best/most effective way to do it IMO, I run a more aggressive rear pad as a track band aid solution currently but will upgrade to 997 rear calipers as my next move..
Running different pads is very effective way of changing bias, but is temperature/conditions sensitive...hydraulic bias is more consistent for a driver,IMO
Running different pads is very effective way of changing bias, but is temperature/conditions sensitive...hydraulic bias is more consistent for a driver,IMO
Last edited by 993GT; 12-07-2016 at 10:32 PM.
#18
I got my car with the Brembo GT 350-345 kit on it. It has the 6 pot front calipers with the bridge in the middle for more rigidity/pedal feel. I do not have a 996tt comparison but compared to my 99C4 that i also tracked the Brembo brakes are Awesome. They were simply flawless all day. The C4 stopped well but suffered from changing pedal feel and travel during the day and it had fresh motoul fluid and pagid yellow pads.
#19
Do note guys on brake bias that's the calipers designed for 380mm rotors do have smaller pistons that a the 997 turbo/997.1 gt3 6 pistons designed for 350mm rotors. that accounts for the extra diameter.
#20
330 calipers 996TT..........FRONT/REAR BIAS = 65.7/34.3%
Front 36, 44
Rear 28, 30
350 calipers 996TTS/GT2/3/Cup..........FRONT/REAR BIAS = 65.9/34.1%**
Front 28, 32, 38
Rear 28, 30
380 calipers 997GT2/3/Cup..........FRONT/REAR BIAS = 53.9/46.1%***
Front 28, 30, 32
Rear 34, 34
***Using 996Cup ABS will shift brake bias further rear compared to the street ABS units as the Cup unit has a much higher lock up threshold programmed in the rear. A 997Cup has no ABS but has adjustable brake bias.
380 calipers 997TT........... FRONT/REAR BIAS = 57.3/42.7%
Front 28, 32, 36
Rear 34, 34
Last edited by pwdrhound; 08-26-2017 at 12:36 AM.
#21
Big change in bias from 996 to 997!
Slightly confused though, you list 996TT as 350mm, I thought stock was 330? I thought 350 was the 997 size? I'm not sure where I thought the 380 came from, GT2/3?
Slightly confused though, you list 996TT as 350mm, I thought stock was 330? I thought 350 was the 997 size? I'm not sure where I thought the 380 came from, GT2/3?
#22
996TTS had 350pccb. I added stock 996TT numbers to post above
Last edited by pwdrhound; 12-10-2016 at 11:11 AM.
#23
See that the BBS E88 and Finspeed will work, wanted to check if there was any luck confirming the OZ Alleggeritas?
Thanks!
#24
No idea on the aftermarket Brembo kit. The OEM Brembo 380 won't work.
#25
I went with 19" then. Another reason was lack of wide EU-approved 18" r-compounds. Except for Toyo which I don't like.
#26
Call TireRack. They have information on all the Brembo systems and are a dealer for those wheels.
Probably will be an issue on the diameter. In order to fit 380mm brakes in an 18" wheel, the barrel has to use a flat racing profile. Usually will only find that in quality forged wheels.
#27
Was glad to see this as I dumped a set of OZ that we're perfect other than I was swapping to 380 and nicer wheels. Figures though, no many upgrades are cheap or only require one variable.
#28
After reading all this would it be wise to use the 997TT/GT2/GT3/Cup (Rear 34/34) calipers with 350 disc together with the 996 TT stock calipers (Front 36/40) + spacers and 350mm disc to change brake bias?
Right now i use the stock 996TT calipers with 11mm spacers and 350mm discs all around.
Right now i use the stock 996TT calipers with 11mm spacers and 350mm discs all around.
#29
After reading all this would it be wise to use the 997TT/GT2/GT3/Cup (Rear 34/34) calipers with 350 disc together with the 996 TT stock calipers (Front 36/40) + spacers and 350mm disc to change brake bias?
Right now i use the stock 996TT calipers with 11mm spacers and 350mm discs all around.
Right now i use the stock 996TT calipers with 11mm spacers and 350mm discs all around.