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AHP
Well-Known Member
SCMC / Track Club USA 11/9 - 11/10
Rob Orlando Private Driving Events 11/11 - 11/12 (though I'm probably only doing 11/11)
NINaudio
Well-Known Member
initialDnut
Well-Known Member
Yes. I will likely switch to the higher uprights next year.
Vegas17
Well-Known Member
I'm doing something wrong with brakes. Swapped to Hawk DTC60/30 from stock pads, bled out to fresh Castrol SRF and thought I did a pretty aggressive break in with 4-5, 80-0 braking just before ABS. Switch to RE71's as well so way more grip. Previously same track and same temps the full stock brakes on stock tires were good but faded hard last session so this prompted the upgrade.
Track day yesterday on Charleston Peak at Spring Mountain Motorsports, large 3 mile track, couple hard braking 105mph to hairpin with high 90-100 afternoon temps. 1st morning run brakes were nowhere near stock which was a little scary, definitely needed better break in. Second run 11:30am was way better, brakes didn't fade, maybe a little shudder towards the end of 30min session. Afternoon session it's close to 95 out and brakes were shuddering after a lap and a mess. Cool down lap, next hard lap was OK but these brakes were super disappointing. Skipped last session as it seemed like a waste.
Track day yesterday on Charleston Peak at Spring Mountain Motorsports, large 3 mile track, couple hard braking 105mph to hairpin with high 90-100 afternoon temps. 1st morning run brakes were nowhere near stock which was a little scary, definitely needed better break in. Second run 11:30am was way better, brakes didn't fade, maybe a little shudder towards the end of 30min session. Afternoon session it's close to 95 out and brakes were shuddering after a lap and a mess. Cool down lap, next hard lap was OK but these brakes were super disappointing. Skipped last session as it seemed like a waste.
Evolution
Well-Known Member
Did you clean the rotors off with anything before bedding in the pads? Steel wool, sand paper, scotch brite, wire brush? If not, you may want to do that and bed in again. Also, you need to do more bedding. I did about 15 80-10mph stops. Remember not to stop completely until everything has time to cool back down.
Charleston Peak isnt really a track I would consider hard on brakes. When I was out there last, it was 95° and I had no issues even with my worn out PMU pads.
Vegas17
Well-Known Member
I didn't. I figured that's probably my issue. I wanna switch pads back over to stock or something else until next track day. The dust is nuts on the the Hawks. I really wanted to get the PMU's but just no stock anywhere.
razorlab
Well-Known Member
- First Name
- Bryan
- Joined
- Oct 2, 2021
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- 16,798
- Location
- Hudson Valley, NY
- Car(s)
- Not a Corvette.
The dust is also HORRIBLE if it gets wet. Welds itself to the wheels and car.
I personally hate the hawks. Never again.
AHP
Well-Known Member
Evasive has the front PMU Club Racers in stock. I ordered a set last week and they came in a few days. I'll probably run them with stock rears.
Rob_SER
Well-Known Member
I ordered new rotors and Endless ME20 to try next year and see if anything is different from the issues I had this summer with the PMU Club Racers
FLtrackdays
Well-Known Member
Hope that does the trick for you. I had no issues with the Hawks. But I did buy new rotors for the front pads whenever replacing them. Thanks to their low price. Agree with Sean on getting that transfer film off the rotor (low grit sandpaper) when switching between different pad material/brands, if on the same rotors.
The Hawks are mega dusty. I’d definitely give the projuct mu’s a go. Bryan has had good success with them and I love their 999s. Mine recently came in from Evasive. Also checkout Rockauto.com for front rotors. You might find it easier just to start out on new ones.
FuzzyRev
Well-Known Member
Has anyone here, or anyone you know, tried the Kenda Vezda UHP MAX KR20A? It's a 200TW AA A, and the prices I'm seeing are very reasonable. They make a 300TW version too, just without the word "MAX" in the title..
Rensuhlo
Well-Known Member
I'd run MuchoMachos before running Kenda tires.Has anyone here, or anyone you know, tried the Kenda Vezda UHP MAX KR20A? It's a 200TW AA A, and the prices I'm seeing are very reasonable. They make a 300TW version too, just without the word "MAX" in the title..
razorlab
Well-Known Member
- First Name
- Bryan
- Joined
- Oct 2, 2021
- Threads
- 29
- Messages
- 8,568
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- 16,798
- Location
- Hudson Valley, NY
- Car(s)
- Not a Corvette.
https://grassrootsmotorsports.com/articles/kenda-vezda-uhp-max-kr20a-tire-test/Has anyone here, or anyone you know, tried the Kenda Vezda UHP MAX KR20A? It's a 200TW AA A, and the prices I'm seeing are very reasonable. They make a 300TW version too, just without the word "MAX" in the title..
Basically less grip than AD09 and Conti Sport 02, and heat soak drastically after one lap on a light miata.
Hard pass for me.
FuzzyRev
Well-Known Member
I can't read it, not a GRM subscriber.
I actually just bought a set for the Viper, because the price was too good to pass up on, and I'm not chasing lap times. The Conti EC02s are on it now, but too nice and expensive for me to destroy while making an upcoming video with the car. Just wanted a set that I don't care about burning up..plus the 'scaly' tread pattern is gonna look dope on a Viper. Contis are being put away for later.
BTW this stack is 49" tall ?, FIJI bottle for scale
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