R compound tires for 991S
#16
I've been running 19" wheels with Michelin PSS at the track. I haven't found an r-comp that has the right sizes in 19". The PSS have excellent grip, and while not quite as fast as r-comps still fair pretty well at the track.
Would love to run a set of Trofeo R, but at around $2800 a set up here in Canada, it just isn't worth it...
Would love to run a set of Trofeo R, but at around $2800 a set up here in Canada, it just isn't worth it...
#17
Three Wheelin'
I've been running 19" wheels with Michelin PSS at the track. I haven't found an r-comp that has the right sizes in 19". The PSS have excellent grip, and while not quite as fast as r-comps still fair pretty well at the track.
Would love to run a set of Trofeo R, but at around $2800 a set up here in Canada, it just isn't worth it...
Would love to run a set of Trofeo R, but at around $2800 a set up here in Canada, it just isn't worth it...
#18
Pro
Running r-comp will increase brake pads wear and dump more heat into the brake fluid, so make sure you flush with higher boiling point brake fluid before going to the track.
#19
I just ordered Volk TE37SL-Porsche 19" wheels plus Hoosier A6 in 235/35 fronts and 315/30 in rears. The 235s are an oversized tire from what I read (between a 245 and 255 wide tire) and the 315s will clear based on my tire shops advice. I think if there is any induced understeer due to wider rears, the "larger fronts" and being a C4S will help balance this configuration. The wheel diameter difference from front vs rear is .5 inch
I plan to drive my car to the track (about 30 minutes each way by highway) as well.
Will let everyone know how they perform but if they are anything like the ones on my GT-R, this is as good as it gets for tires.
I plan to drive my car to the track (about 30 minutes each way by highway) as well.
Will let everyone know how they perform but if they are anything like the ones on my GT-R, this is as good as it gets for tires.
#20
I'm considering getting track tires for the stock Carrera Classic wheels as well...
how about the Hankook R-S3's? Ive been told these are amazing and less expensive track tires.
20" sizes offered by Tire Rack
255/40ZR20
265/35ZR20
285/35ZR20
305/35ZR20
thoughts?
how about the Hankook R-S3's? Ive been told these are amazing and less expensive track tires.
20" sizes offered by Tire Rack
255/40ZR20
265/35ZR20
285/35ZR20
305/35ZR20
thoughts?
Last edited by Oerding911; 09-30-2014 at 04:48 AM.
#21
Rennlist Member
I would love it if I could use 305/30 instead of the 295/30, as that opens a couple options up. I'd love to hear definitively from someone that this works on the S, as John's asking. Also, I've heard that Trofeo's only last a couple track days, which would make me pretty hesitant to buy them, especially since they're probably more expensive than the Corsas.
other than the Sport Technos.
Worthwhile Checking with TireRack or WheelEnhancement...
#22
Rennlist Member
I absolutely love my new Continental ContiForceContact tires.
http://www.tirerack.com/tires/tires....FCXL&tab=Specs
http://www.tirerack.com/tires/tires....FCXL&tab=Specs
#24
Rennlist Member
try the MPSC2
#26
Burning Brakes
#27
Rennlist Member
Treadwear is 80...so not as good as the factory P-Zero on wear. In every other aspect they're far superior.
#29
Rennlist Member
FWIW from the 991 owners manual:
The fitting of racing tires (e.g. slicks) for sporting events is not approved by Porsche.
Very high cornering speeds can be achieved with racing tires. The resulting transverse acceleration values would jeopardise the adequate supply of oil to the engine.
Porsche therefore refuses to accept any guarantee or liability for damage occurring as a result of non-compliance with this provision.
The fitting of racing tires (e.g. slicks) for sporting events is not approved by Porsche.
Very high cornering speeds can be achieved with racing tires. The resulting transverse acceleration values would jeopardise the adequate supply of oil to the engine.
Porsche therefore refuses to accept any guarantee or liability for damage occurring as a result of non-compliance with this provision.
#30
Burning Brakes
R compounds are not racing tires (slicks), they are department of transportation approved street tires.