06-17-2021 | #11 |
Join Date: Jul 2016
Location: Greater St. Louis
Posts: 490
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Re: In Defense of J55 Brakes
Pads make a big difference. When I autocrossed all the time, I put on new pads every year and once accidentally switched from Hawk HPS pads to HP+. I daily drove the car and the HP+ likes a little heat. The first stop or two of the morning commute the brakes were plain weak. After 6 months of scaring myself and a close call or two I gave up and switched back. The Plus pads technically had better specs but weren?t best for my application. The HPS pads didn?t stay hot in autox they way they would have for track day use and worked better than Plus at everyday temps Lately I?m using HPS 5.0 on the ZR-1 and am happy so far.
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06-17-2021 | #12 | |
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: In Defense of J55 Brakes
Quote:
H
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90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. Last edited by Ccmano; 06-17-2021 at 11:22 PM. |
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06-17-2021 | #13 | |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: In Defense of J55 Brakes
Quote:
I picked up some Brembos that are better
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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06-17-2021 | #14 |
Join Date: Jan 2020
Location: conroe, tx
Posts: 87
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Re: In Defense of J55 Brakes
when i put the brembo's and ccb rotors on my 2007 z06, i put the z06's brakes and wheel/tires on my 1991 zr-1. have not done any comparisons but they work.
#1 c6 z06 caliper vs c4 j55 caliper #2 c6 z06 brake assy on c4 #3 rear z06 rotor vs c4 rotor ps. how do i rotate a picture cw/ccw? |
06-17-2021 | #15 |
Join Date: Sep 2016
Location: Ocala, FL
Posts: 900
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Re: In Defense of J55 Brakes
Be sure to install the DRM bias spring. It makes a noticeable difference.
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Steve Young 1991 ZR-1 Quasar Blue Metallic/Black #729 Second Owner 1991 ZR-1 Dark Red Metallic/Black #2040 SOLD 1990 ZR-1 Dark Red Metallic/Saddle #1670 SOLD Double your happiness.....complain half as much. |
06-18-2021 | #16 | |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: In Defense of J55 Brakes
Quote:
What wheels are you using
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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06-18-2021 | #17 |
Join Date: Jan 2021
Location: Beautiful Bavaria
Posts: 523
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Re: In Defense of J55 Brakes
As my Z still has the factory installed rotors and pads I'm thinking about some modernization, too, maintaining the stock setup. Powerstop Z26 would be the stuff of choice for me. Just one consideration: are these slotted and drilled disc's really anything as close to "quiet" as powerstop claims?
I used to have drilled rotors in the past in one of my Audi's and these were an awful choice as they caused buzzing/humming noises and even slight but noticeable vibrations up to the steering wheel. When speaking about stock brakes also noise is a consideration as my Z is a Sunday Sunday afternoon bullet and not a track tool... Sent from my SM-G991B using ZR-1 Net Registry mobile app
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ZR-1 #638/1991 |
06-18-2021 | #18 |
Join Date: Sep 2018
Location: Florida
Posts: 305
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Re: In Defense of J55 Brakes
The Z26 package has been quiet as a mouse for me. I?ve been using it over a year now and no noise of any kind. The rotors are zinc plated, so it is a nice touch and good to know you don?t have to look at rusted parts of the rotor not in use. Low dust pads. The only thing that you might even consider an issue is on the rare cases there is enough pad dust accumulated that gets wet from say driving in the rain, it can run out onto the wheel and dry out. It requires some extra effort to remove from the wheel but a very minor issue.
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06-18-2021 | #19 |
Join Date: Jan 2021
Location: Beautiful Bavaria
Posts: 523
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Re: In Defense of J55 Brakes
Great, thanks for that insight. Then I will order my set! Seems to be a wise upgrade.
Sent from my SM-G991B using ZR-1 Net Registry mobile app
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ZR-1 #638/1991 |
06-19-2021 | #20 | |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
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Re: In Defense of J55 Brakes
Quote:
What I like about the bigger brake, beyond the aesthetics, is how light the pedal pressure needs to be to stop in typical driving situations. I end up stopping sooner than I think I will.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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