Brake pad shims - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Newtothegrounds · 04-16-2018, 09:34 AM

I'm swapping my TRD brake pads for project mu 800 pads and was wondering if I should transfer over the shims that come on the TRD pads and I think there on the stock pads as well and place them on the new project mu pads?

Roadcone · 04-16-2018, 10:22 AM

If they are oem shims they are only there for noise reduction. if you don't care about noise don't worry about them. I've always swapped them over.

Newtothegrounds · 04-16-2018, 11:10 AM

Quote:

Originally Posted by Roadcone

If they are oem shims they are only there for noise reduction. if you don't care about noise don't worry about them. I've always swapped them over.

Thanks for the response

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Qadthane · 04-17-2018, 09:46 AM

Quote:

Originally Posted by Roadcone

If they are oem shims they are only there for noise reduction. if you don't care about noise don't worry about them. I've always swapped them over.

I didn't swap them over when I put Project Mu HC+800 pads on my car. They squealed like a Banshee when braking at low speeds. The next weekend I put the shims back on.

Newtothegrounds · 04-17-2018, 09:47 AM

Quote:

Originally Posted by Qadthane

I didn't swap them over when I put Project Mu HC+800 pads on my car. They squealed like a Banshee when braking at low speeds. The next weekend I put the shims back on.

Did it help with the squeeling? When you put them back on

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Qadthane · 04-17-2018, 09:57 AM

Quote:

Originally Posted by Newtothegrounds

Did it help with the squeeling? When you put them back on

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Oh yeah, tremendously.

Tcoat · 04-17-2018, 10:11 AM

Quote:

Originally Posted by Newtothegrounds

Did it help with the squeeling? When you put them back on

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Squeal is caused by vibration. Shims reduce vibration. Physics 101 applies.

Newtothegrounds · 04-14-2019, 02:40 PM

Not for me no

living that track brake life. But I guess it can be expected.

JIM THEO · 04-14-2019, 02:52 PM

I used a set of Forester brake pad shims but projectmu HC+800 still squeal here and there especially after driving some days at low "town" speeds!

churchx · 04-14-2019, 05:43 PM

One source of squealing is vibrations, for that shims may help a bit.
Another source of squeeling is not being able to put enough heat during normal daily driving within speedlimits with trackpads and bedded layer wearing off from rotors. For this one may try every X days rebed brakes if one can find some very empty highway stretch (so to not bother other drivers on road), but imho best bet would be having two specialized pad sets for DD & for track, and switch them prior/post trackdays.

04-16-2018, 09:34 AM	#1
Newtothegrounds Member Join Date: Aug 2015 Drives: 2016 FRS Location: Canada Posts: 45 Thanks: 3 Thanked 10 Times in 6 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Brake pad shims I'm swapping my TRD brake pads for project mu 800 pads and was wondering if I should transfer over the shims that come on the TRD pads and I think there on the stock pads as well and place them on the new project mu pads?

04-16-2018, 10:22 AM	#2
Roadcone StreetKart Join Date: Jul 2013 Drives: 2014 Scion FR-S Monogram Location: Upstate, SC Posts: 477 Thanks: 43 Thanked 180 Times in 111 Posts Mentioned: 10 Post(s) Tagged: 1 Thread(s)	If they are oem shims they are only there for noise reduction. if you don't care about noise don't worry about them. I've always swapped them over. __________________ TRD\|Verus Engineering\|Titan7\|DEZOD Motorsports\|JDL Auto Design

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04-14-2019, 02:40 PM	#8
Newtothegrounds Member Join Date: Aug 2015 Drives: 2016 FRS Location: Canada Posts: 45 Thanks: 3 Thanked 10 Times in 6 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Not for me no living that track brake life. But I guess it can be expected.

04-14-2019, 02:52 PM	#9
JIM THEO Senior Member Join Date: Feb 2018 Drives: BRZ 2018 Location: Greece Posts: 495 Thanks: 119 Thanked 135 Times in 95 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	I used a set of Forester brake pad shims but projectmu HC+800 still squeal here and there especially after driving some days at low "town" speeds!

04-14-2019, 05:43 PM	#10
churchx Senior Member Join Date: Mar 2015 Drives: 2014 GT86 Location: Latvia, Riga Posts: 4,333 Thanks: 696 Thanked 2,085 Times in 1,436 Posts Mentioned: 53 Post(s) Tagged: 1 Thread(s)	One source of squealing is vibrations, for that shims may help a bit. Another source of squeeling is not being able to put enough heat during normal daily driving within speedlimits with trackpads and bedded layer wearing off from rotors. For this one may try every X days rebed brakes if one can find some very empty highway stretch (so to not bother other drivers on road), but imho best bet would be having two specialized pad sets for DD & for track, and switch them prior/post trackdays.

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