brake squealing

Tedmeister · 07-19-2023, 10:57 AM

Looking for some input on my brake situation. This is a track only car that
now weighs 2750 lbs without fuel or driver. It has been a several year
project, and is finally running without having mechanical or electrical issues
when I get to the track. Car came with Hawk pads and the Akebono calipers.
There is no ABS so the Hawk pads had very little pedal travel from 0 to 100%
and consequently front lock up. I had to brake late and really ease the brakes.
There was no brake ducting and no squealing. I went to Project Mu Club sport
pads (I liked them on my S2000 with AP racing calipers). Much better brake feel, but pads squealed like crazy and I did have drop off in braking capability.
Installed brake ducting and sanded the glaze off pads and rotors. I have OEM rotors. Same thing next track day. Went to G-Loc R-12 for the front.
Squealing came back, with half the volume, but no drop off in capability.
Also my wheels get so hot that I lose my weights that balance the wheels.
Is all that normal? What remedies should I start with?

fryzia23 · 07-19-2023, 12:26 PM

Track pads squeal and not much you can do about it. Only thing you can do is to swap street friendly pads to track pads between track days. Also for wheel weights falling off, you can put something like a aluminum heating tape over it to prevent from coming off.

Averying · 07-19-2023, 01:09 PM

My Carbotech XP10/XP8 pads, which are pretty typical track pads.. nothing crazy, squeal like MAD under light braking. It must drive other drivers crazy when I pull up to a stop light next to them.

I’ve heard that heat reflective aluminum tape works well to keep the wheel weights on

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Rusty · 07-19-2023, 02:05 PM

My Carbo 10/8 pads with the RacingBrake rotors squeal on the street with light braking. Once hot, the squealing stops

Tedmeister · 07-19-2023, 07:42 PM

These squeal on the track when they get hot. The car is not driven on the street. I'll try the aluminum tape.

Averying · 07-19-2023, 08:07 PM

Quote:

Originally Posted by Tedmeister

These squeal on the track when they get hot. The car is not driven on the street. I'll try the aluminum tape.

You might be glazing the pads from excessive heat. I would give slotted rotors a try which should help prevent glazing by removing the topmost layer of the pads.

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Spooler · 07-19-2023, 10:35 PM

Quote:

Originally Posted by Averying

My Carbotech XP10/XP8 pads, which are pretty typical track pads.. nothing crazy, squeal like MAD under light braking. It must drive other drivers crazy when I pull up to a stop light next to them.

I’ve heard that heat reflective aluminum tape works well to keep the wheel weights on

Sent from my iPhone using Tapatalk

That's a badge of honor. LOL Squealing brakes pulling up to a traffic light or stop sign. I just smile because I am being annoying and I don't care.

Tedmeister · 07-30-2023, 08:51 AM

I removed the factory shims, that cut down on the squeal significantly.

07-19-2023, 10:57 AM	#1 (permalink)
Tedmeister Base Member Join Date: Feb 2017 Location: Florida Posts: 68 Drives: 12 M6 Rep Power: 6776	brake squealing Looking for some input on my brake situation. This is a track only car that now weighs 2750 lbs without fuel or driver. It has been a several year project, and is finally running without having mechanical or electrical issues when I get to the track. Car came with Hawk pads and the Akebono calipers. There is no ABS so the Hawk pads had very little pedal travel from 0 to 100% and consequently front lock up. I had to brake late and really ease the brakes. There was no brake ducting and no squealing. I went to Project Mu Club sport pads (I liked them on my S2000 with AP racing calipers). Much better brake feel, but pads squealed like crazy and I did have drop off in braking capability. Installed brake ducting and sanded the glaze off pads and rotors. I have OEM rotors. Same thing next track day. Went to G-Loc R-12 for the front. Squealing came back, with half the volume, but no drop off in capability. Also my wheels get so hot that I lose my weights that balance the wheels. Is all that normal? What remedies should I start with?

07-19-2023, 12:26 PM	#2 (permalink)
fryzia23 Enthusiast Member Join Date: Dec 2010 Location: new jersey Posts: 452 Drives: 2011 MB 370Z NISMO Rep Power: 1246	Track pads squeal and not much you can do about it. Only thing you can do is to swap street friendly pads to track pads between track days. Also for wheel weights falling off, you can put something like a aluminum heating tape over it to prevent from coming off. danegrey likes this.

07-19-2023, 01:09 PM	#3 (permalink)
Averying Enthusiast Member Join Date: May 2018 Location: Rhode Island Posts: 478 Drives: '09 370Z, '03 G35 Rep Power: 14419	brake squealing My Carbotech XP10/XP8 pads, which are pretty typical track pads.. nothing crazy, squeal like MAD under light braking. It must drive other drivers crazy when I pull up to a stop light next to them. I’ve heard that heat reflective aluminum tape works well to keep the wheel weights on Sent from my iPhone using Tapatalk danegrey likes this. __________________ 2009 Sport Touring \| Platinum Graphite \| GTM Stage 1 Supercharger \| BC BR Coilovers \| Hotchkis Swaybar \| Z1 FUCAs \| AME TM-02 Wheels \| Z1 2-piece Front Rotors \| Z1 Clutch & Flywheel \| Invidia Gemini Catback \| GTM Resonated Test Pipes Last edited by Averying; 07-19-2023 at 01:11 PM.

07-19-2023, 02:05 PM	#4 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,217 Drives: 2011 Nismo GM 6M Rep Power: 2684438	My Carbo 10/8 pads with the RacingBrake rotors squeal on the street with light braking. Once hot, the squealing stops danegrey likes this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

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07-19-2023, 07:42 PM	#5 (permalink)
Tedmeister Base Member Join Date: Feb 2017 Location: Florida Posts: 68 Drives: 12 M6 Rep Power: 6776	These squeal on the track when they get hot. The car is not driven on the street. I'll try the aluminum tape.

07-30-2023, 08:51 AM	#8 (permalink)
Tedmeister Base Member Join Date: Feb 2017 Location: Florida Posts: 68 Drives: 12 M6 Rep Power: 6776	I removed the factory shims, that cut down on the squeal significantly.