Anyone tried this Porsche Boxster S brake upgrade for the TT?
10-17-2001, 07:41 PM
#21
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Good points. From my own experience by having pads, fluid, and rotors (vented/crossdrilled), the
brakes are more than substantial as I have not been able to get them to fade on extended spirited road course driving. I don't see how the aluminum hat helps reduce heat, but agree a minimal amount of more air in a limited airflow space can be drawn in with the Stoptech's angled vented rotors, but I question how much. I think these are an extremely overpriced upgrade when compared to others out there for those who need it for high speed track use and would like to see hard science back up the superiority claims of anything sold here. It does appear that cheap ducting is the ultimate solution from cost and effectiveness perspectives.
10-17-2001, 09:34 PM
#23
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Also, were those TTers who warped their rotors using Kevlar pads? I was told that under extreme...
heat those pads retain their composure much better than the super heated solid (vented and undrilled) rotors and the pressure of the 2 materials meeting makes the rotors the losers; hence warpage. One of the advantages of staying with semi-metallics is they warm faster for better cold braking and are not to hard so less warpage and no shimmy/squeal from the hard pad backing vibrating in the calipers.
10-18-2001, 06:45 AM
#24
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I agree that better ducting would help - but with the intercoolers on the side (one side for me)
it makes the ducting hard to route. As far as the cost of the StopTech upgrade - i'd compare it to Alcon or other 4 piston upgrades with 13" floating rotors - it then is relatively inexpensive.
As far as pads go - i've used Mintex Redbox and PB Metalmasters in my previous cars and they were about the same in terms of warm up and overall performance. The Mintex were a little easier on the rotors but then again these were different types of rotors on different types of cars.
I'm still not sure what i'll do with the TT yet - other than just busting out for the StopTechs.
As far as pads go - i've used Mintex Redbox and PB Metalmasters in my previous cars and they were about the same in terms of warm up and overall performance. The Mintex were a little easier on the rotors but then again these were different types of rotors on different types of cars.
I'm still not sure what i'll do with the TT yet - other than just busting out for the StopTechs.
10-18-2001, 08:51 AM
#25
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I posted a pic of a 916-4 ducting kit that looks like the approx. layout of the TT, at least from
the lower arm down. It looks like the same distance from the center of the rotor to the scoop on the kit from the picture. If it fits, these or similar are a must have for high speed track TT's to complement whichever brake upgrade gets used. Check my pics, if you are interested. Performance Products sells them.
10-18-2001, 09:29 AM
#26
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I saw those - EC's project 911S has a similar kit developed specifically for that car
Again - the only concern is where to route the ducts to the front - unless you have a FMIC which removes the side intercoolers.
10-18-2001, 09:48 AM
#27
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If the ducts were directly under the lower arms, then they may scoop a lot of air from the underflow
of the belly pan. P.S. I checked out the floating hat argument against one piece rotors on the Stoptech site. In order to get the 1 piece rotors to cone, they would have to be glowing red to distort to that 2mm expansion claimed. I have only seen that on LeMans footage at night. Any TT that is glowing their rotors at any point better get the 2 piece. Still, overcall for a sub 300HP road car, IMHO.
10-18-2001, 10:42 AM
#28
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Not being an engineer - my only comment would be that several people here have warped stock rotors
but to be honest - I don't remember WHY they warped - ie. track etc.
I'm still trying to picture where you'd get the ducting to go on the TT. The belly pan does play a major role in the TT's aerodynamics - the idiots left it off my car once and believe me it's absence was felt at 80mph. I'd be hesitant to do any modifications to the belly pan to allow for ducting.
I'm still trying to picture where you'd get the ducting to go on the TT. The belly pan does play a major role in the TT's aerodynamics - the idiots left it off my car once and believe me it's absence was felt at 80mph. I'd be hesitant to do any modifications to the belly pan to allow for ducting.
