C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

need quick answer - minimum rotor thickness

Thread Tools
 
Search this Thread
 
Old Apr 15, 2003 | 02:14 PM
  #1  
sraft's Avatar
sraft
Thread Starter
Burning Brakes
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Oct 2002
Posts: 984
Likes: 1
From: Bergen County NJ
Default need quick answer - minimum rotor thickness

I have the J55 brakes and need to know the min. rotor thickness for both front and back rotors.

thanks in advance,

Steve
Reply
Old Apr 15, 2003 | 04:18 PM
  #2  
jimswhite92's Avatar
jimswhite92
Racer
 
Joined: Jan 2003
Posts: 321
Likes: 0
From: Birmingham AL
Default Re: need quick answer - minimum rotor thickness (sraft)

The rotors should have a discard dimension cast into them. My book on my 92 says minimum is .744" and discard at .724".
Reply
Old Apr 15, 2003 | 04:28 PM
  #3  
Ramrod92's Avatar
Ramrod92
Melting Slicks
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jul 1999
Posts: 2,875
Likes: 0
From: Olive Branch (Memphis suburb) MS
Cruise-In II Veteran
Default Re: need quick answer - minimum rotor thickness (jimswhite92)

The .744 and .724 are for standard rotors (both front and rear). The J55s numbers are 1.059 and 1.039. The J55 set up uses standard rears. :cheers:
Reply
Old Apr 16, 2003 | 08:43 AM
  #4  
sraft's Avatar
sraft
Thread Starter
Burning Brakes
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Oct 2002
Posts: 984
Likes: 1
From: Bergen County NJ
Default Re: need quick answer - minimum rotor thickness (Ramrod92)

Thanks guys,

I brought them in to work to measure (we have a machine shop), but the rotors were pretty rusty and I couldn't read the numbers from the casting. Turns out I'm 0.020" over the discard thickness, so I don't have enough meat to machine them, but I can throw them back on. I was planning to install Porterfield R4S brake pads, but I won't do that until I get fresh rotors. While I've got everything apart, I've found more parts that need replacing (busted crown gears on the FX-3 shocks, 2 FX-3 actuators with busted plastic gears and a bad rear bearing/hub), so I would rather not spend $350 on rotors right now.


Steve
Reply
Old Apr 16, 2003 | 08:55 AM
  #5  
jimswhite92's Avatar
jimswhite92
Racer
 
Joined: Jan 2003
Posts: 321
Likes: 0
From: Birmingham AL
Default Re: need quick answer - minimum rotor thickness (sraft)

Whoops.... Overlooked the J55 option. Glad you were able to measure and got the correct info.

Sounds like you have somewhere to spend that tax refund.
Reply

Get notified of new replies

To need quick answer - minimum rotor thickness





All times are GMT -4. The time now is 06:15 AM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-5
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-6
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-7
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-8
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-9
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE