LS1 brakes: Anyone know fastener torque specs?

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Dec 31, 2003 | 01:33 AM
  #1  
I have not installed the bolts in my LS1 setup with a torque wrench yet.

Does anyone know the recommended torque specs for the caliper carrier to adapter bracket bolts and the caliper to caliper pin bolts?

Oh yeah, how about the adapter to spindle bolts. I have them in now at 90ft/lbs which is what I saw on a page discussing a 1LE swap.
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Dec 31, 2003 | 06:41 PM
  #2  
Hi Chuck. I would use those on Dan Burke's webpage as a guide. Since we are using appromixately the same mounting spots as the 1LE mounts, I'd go with those.

I should have mine on next week.

Ed
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Jan 1, 2004 | 11:19 PM
  #3  
That was my intent but 137ft/lbs for the caliper carrier to adapter bracket seems like a lot of torque. I may try asking around on a 4th gen board to see if one of those guys can tell me some numbers. If I do that I'll let you know what they say.
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Jan 2, 2004 | 11:15 AM
  #4  
Not the same, but the BAER PBR rear discs use 120 ft/lbs on the bracket to axle, and 80 ft/lbs from the caliper to bracket.
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Jan 2, 2004 | 12:11 PM
  #5  
Document ID# 773150
2002 Chevrolet Camaro

--------------------------------------------------------------------------------

Fastener Tightening Specifications
Application
Specification

Metric
English

Brake Caliper Bleeder Valve
12 N·m
106 lb in

Brake Caliper Guide Pin Bolt
31 N·m
23 lb ft

Brake Caliper Mounting Bracket Bolt
100 N·m
74 lb ft

Brake Hose Fitting Bolt
55 N·m
41 lb ft

Wheel Nut
140 N·m
100 lb ft



--------------------------------------------------------------------------------
Document ID# 773150
2002 Chevrolet Camaro


these are the torque from the 2002 camaro service manual for the front brake

hope this help


edit:
while we're at it, the rest of specs for these brake

Disc Brake Component Specifications
Application
Specification

Metric
English

Front Brakes

Rotor Discard Thickness*
30.7 mm
1.209 in

Rotor Maximum Allowable Lateral Runout
0.06 mm
0.002 in

Rotor Maximum Allowable Scoring
1.50 mm
0.059 in

Rotor Maximum Allowable Thickness Variation
0.025 mm
0.001 in

Rotor Minimum Allowable Thickness After Refinishing
31.08 mm
1.223 in

Rotor Thickness, New
32.0 mm
1.26 in

Rear Brakes

Rotor Discard Thickness*
24.51 mm
0.965 in

Rotor Maximum Allowable Lateral Runout
0.06 mm
0.002 in

Rotor Maximum Allowable Scoring
1.50 mm
0.059 in

Rotor Maximum Allowable Thickness Variation
0.025 mm
0.001 in

Rotor Minimum Allowable Thickness After Refinishing
24.89 mm
0.980 in

Rotor Thickness, New
25.90 mm
1.020 in

* All brake rotors have a discard dimension cast into them. Replace any rotor that does not meet this specification. After refinishing the rotor, replace any rotor that does not meet the minimum thickness after refinish specifications.



--------------------------------------------------------------------------------
Document ID# 706333
2002 Chevrolet Camaro
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Jan 3, 2004 | 02:13 PM
  #6  
Thank you Sir!! Nice post.

Ed
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Jan 3, 2004 | 09:37 PM
  #7  
no prob, if you want any other specs concerning LS1 car (camaro/firebird/corvette) or any other GM car/truck newer then 98 for that mather just ask me
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Jan 3, 2004 | 10:37 PM
  #8  
Dr BBS,
I second Ed's comment. Very good information. I'm glad I asked about the torques specs. 74lb/ft sounds a lot more reasonable for the caliper carrier than the 137 lb/ft 1LE spec.
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