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was instructing for a buddies track event . Took some students for some hot laps in my car after maybe 6 laps or so the brakes started pulsating badly like an abs feeling before abs. They still slowed the car down but felt horrible.
I could see heat marks on the rotors when I brought it in . Very disappointing while I have a Cup car I race and this car was only intended to be a daily I was hoping with turbo brakes it would be ok on track.
Anyone else have issues like this? was there a pad or rotor fix
Wishing now I went with ceramics just couldnt justify the cost
Just last night I was watching a review of the GTS on Harry's Garage and he made mention of the brakes being subpar and the rotors grooving after spirited drives.
Just last night I was watching a review of the GTS on Harry's Garage and he made mention of the brakes being subpar and the rotors grooving after spirited drives.
I have a 22 GTS and spirit drive hard some times and think the brakes are great. I actually feel they get better the more heat I put in to them but that not on a track.
If Porsche recommends steel rotors for track days, jumping on the ceramics bandwagon is not the answer. Must be something specific to your car or the GTS.
Just last night I was watching a review of the GTS on Harry's Garage and he made mention of the brakes being subpar and the rotors grooving after spirited drives.
Originally Posted by Jimmy-D
I have a 22 GTS and spirit drive hard some times and think the brakes are great. I actually feel they get better the more heat I put in to them but that not on a track.
For the track...-can not comment
I watched a few videos last night so my recollection wasn't perfect. Here's what he actually said:
One word: pads. Stock pads are street pads - I went through a set in a day at a DE event, and the rears wear quicker than fronts due to intervention of PSM. Get a proper set of track Pagids/EBS/etc and problem solved.
You probably glazed the rotors with the street pads as @jlegelis said. Deglaze the rotors and put in some high temp. pads and, I think, you'll find the brakes are excellent.
Yep, need better pads. Stock pads that aren't properly heat cycled could be very problematic. You invariably got some uneven pad deposit transfer to the rotors which gave you the vibration/pulsing feel.
Reminds of the one "easy" session I was going to do with my old '12 Cadillac CTS-V with stock everything. I can push pretty hard on track and I boiled the stock fluid and completely trashed the stock pads/rotors in 2/3ths of a session sliding off the track when the brake pedal went to the floor and I couldn't build pressure. Luckily, just slid sideways through the grass and stopped about 6 feet from a tire wall. Brakes vibrated incredibly bad all the way home after I got the brake fluid flushed at the track.
I dropped it at the dealer the next day and said the brakes were vibrating and making a weird noise. They put new pads and rotors on under warranty. I was happy.
I dropped it at the dealer the next day and said the brakes were vibrating and making a weird noise. They put new pads and rotors on under warranty. I was happy.
There’s no ‘do it all compound’. Street pads on the track won’t last a day in a well-driven car. Track pads on the street will be noisy and lack cold bite. And PCCB: they sound great a on paper, but no track junkie runs ‘em: everyone swaps to steel rotors lest they shell out $25k for replacement rotors. As with most things in life, everything is a compromise.
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