Carrera vs. Carrera S brakes
#16
Rennlist Member
The original GT3 had the 996TT 360mm 4-piston calipers, they were awesome
on the street, but a few aggressive laps on track and they were done; even
running more aggressive pads and higher temp brake fluid did not abrogate
the problem.
The car simply did not have enough rotor surface/mass to deal with the thermal
issues on track... this was cured in the 996.2 car which had the 380mm 6-piston
system installed.
based on my experiences on track in this car, and others, I would not use a
4-pot system extensively on track ... on street it should not matter, its a
simple case of cosmetics.
#17
IMO its mostly an issue if you track your car (a lot).
The original GT3 had the 996TT 360mm 4-piston calipers, they were awesome
on the street, but a few aggressive laps on track and they were done; even
running more aggressive pads and higher temp brake fluid did not abrogate
the problem.
The car simply did not have enough rotor surface/mass to deal with the thermal
issues on track... this was cured in the 996.2 car which had the 380mm 6-piston
system installed.
based on my experiences on track in this car, and others, I would not use a
4-pot system extensively on track ... on street it should not matter, its a
simple case of cosmetics.
The original GT3 had the 996TT 360mm 4-piston calipers, they were awesome
on the street, but a few aggressive laps on track and they were done; even
running more aggressive pads and higher temp brake fluid did not abrogate
the problem.
The car simply did not have enough rotor surface/mass to deal with the thermal
issues on track... this was cured in the 996.2 car which had the 380mm 6-piston
system installed.
based on my experiences on track in this car, and others, I would not use a
4-pot system extensively on track ... on street it should not matter, its a
simple case of cosmetics.
#18
Rennlist Member
Check in with Squires, he installed Turbo steels on his C4S and said they are direct bolt on. More here: http://www.6speedonline.com/forums/9...ml#post4222856 T
Last edited by 77tony; 02-05-2016 at 01:01 PM.
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DanielW (09-29-2020)
#19
Check in with Squires, he installed Turbo steels on his C4S and said they are direct bolt on. More here: http://www.6speedonline.com/forums/9...ml#post4222856 T
Talked to someone at dealer and they asked a tech and his response was...big job, need to change spindles etc. Not was what I was hoping for.
Going from Turbo to C4S compared to S to Base might be a little more of a difference prolly. Gotta dig a little deeper into this mystery
buuhhhuuwwaaaa
#20
Rennlist Member
Amazing car
Talked to someone at dealer and they asked a tech and his response was...big job, need to change spindles etc. Not was what I was hoping for.
Going from Turbo to C4S compared to S to Base might be a little more of a difference prolly. Gotta dig a little deeper into this mystery
buuhhhuuwwaaaa
Talked to someone at dealer and they asked a tech and his response was...big job, need to change spindles etc. Not was what I was hoping for.
Going from Turbo to C4S compared to S to Base might be a little more of a difference prolly. Gotta dig a little deeper into this mystery
buuhhhuuwwaaaa
#21
Here's the kicker...reliable source tells me that the S rear has more pad area hence the different part numbers. Being both are at 330mm from hub to rotor edge might be the S rotor would have a bit more area. SO, I'm thinking for a Base rear to be upgraded to S rear just the rotors, calipers and pads needed to be doable So if that's the case, $1600 from one dealer for S to Base swap might be less at different dealer tho. For the fronts @ $1995 + $1600 = $3595
Like the OEM would be 1/2 the price of a real aftermarket big brake kit...you decide
But...is there anyone out there that has done a 991 REAR Base to S as of yet? imho the only real way to see is if someone has done it OR for someone who has access to parts to have a side by side comparison.
Sorry so long, did not want to paint my calipers...lol
#22
Is the heat capacity problem in the calipers, or the rotors?
Girodisc sells a kit that puts 350mm two-piece rotors on all four corners for $2400 (with spacers to move the 3.4 calipers). Thoughts?
Girodisc sells a kit that puts 350mm two-piece rotors on all four corners for $2400 (with spacers to move the 3.4 calipers). Thoughts?
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wdr911 (09-30-2020)
#23
Drifting
That's in line with the Racing Brakes kit ($2800) which gives you their pads and 380 discs all around, and relo brackets for OEM calipers. But I don't think they allow a Base-to-GT3 conversion, only S-to-GT3.
#24
http://www.suncoastparts.com/product/PK981SBRA.html
Looks like only disc for S and 4S only, no luck on Base 3.4L:
http://www.girodisc.com/Rotors_c_1119.html
#26
Rennlist Member
On the 991.2's it's a direct swap. I put GTS brakes on my base. It was time for rotors and pads on all 4 corners and I found a used set off a .2 GTS with 2,000 miles. The rears are the same BTW.
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Onad (11-18-2020)
#27
#28
I have a chance to buy calipers from the S (fronts) for my base car. I don’t really want to buy the discs because the shipping is crazy expensive. Is the calipers alone a good upgrade and will it work with my current base front discs?
#29
Rennlist Member
#30
Do you find a noticeable increase in braking power on yours now after you’ve had them a while compared to stock?