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Unread 12-26-2014, 05:05 PM   #1
jayfrem
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2006 LJ Wrangler 
 
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Brakes heating up with whistle sound

Hi

I am running 36.5" IROKS bias tyres on stock brakes on my 2006 LJ ( manual ).

When going downhills it seems my brakes are heating up and emitting a " whistle" noise than comes louder as speed increase.

Is this whistle noise from tyres heating up?

Would changing brake fluid helps avoid over heating ?

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Jay Frem
2006 LJ Rubicon - AEV kit, 35", Nth TT, 3"FT, PSC slides and corner crushers,AtoZ bumpers
Land Rover Disovery 1996 on 36.5" IROKS ( locked, 30 spline chromoly axles&CV's, Toy8", Warn M8274-50...)
Range Rover 1983 - mainly stock
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Unread 12-26-2014, 06:01 PM   #2
biffgnar
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With those tires on an LJ you are well beyond operating parameters for stock brakes. Forget about band aids and properly upgrade brakes.
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Unread 12-26-2014, 07:19 PM   #3
frenchy206
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2003 TJ Wrangler 
 
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Check out black magic brakes. Blaine on here makes some quality products. I would not be running that large of a tire without a big brake upgrade.
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Unread 12-27-2014, 12:27 AM   #4
jayfrem
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How often should brake fluid be changed ?

What brake upgrades should i consider ?
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Jay Frem
2006 LJ Rubicon - AEV kit, 35", Nth TT, 3"FT, PSC slides and corner crushers,AtoZ bumpers
Land Rover Disovery 1996 on 36.5" IROKS ( locked, 30 spline chromoly axles&CV's, Toy8", Warn M8274-50...)
Range Rover 1983 - mainly stock
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Unread 12-27-2014, 05:40 AM   #5
GringoLoco
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2000 TJ Wrangler 
 
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Your best option for brakes is the Vanco big brake kit that Savvy/Black Magic Brakes sells. As for fluid, if you can't remember when it was last changed it's time to change it. Honestly I'm not sure if there's a concensus on that, I've heard once a year but don't know if that was overly cautious. I know I'm overdue.
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Odd noises
Still can't get it to take off from a treadmill....
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Unread 12-30-2014, 12:29 PM   #6
jayfrem
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Will slotted disk rotors " vented rotors" help reduce over heating while keeping stock brake cylinders/pads ?
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Jay Frem
2006 LJ Rubicon - AEV kit, 35", Nth TT, 3"FT, PSC slides and corner crushers,AtoZ bumpers
Land Rover Disovery 1996 on 36.5" IROKS ( locked, 30 spline chromoly axles&CV's, Toy8", Warn M8274-50...)
Range Rover 1983 - mainly stock
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Unread 12-30-2014, 12:33 PM   #7
biffgnar
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Quote:
Originally Posted by jayfrem View Post
Will slotted disk rotors " vented rotors" help reduce over heating while keeping stock brake cylinders/pads ?
With tires that big on an LJ you need larger multi-piston calipers and better compound pads. Vented rotors would be a band aid that would provide little, if any, improvement.
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Unread 12-30-2014, 01:14 PM   #8
JeeperLink
2001 Wrangler SE 2.5L
2001 TJ Wrangler 
 
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I agree with members advising you to upgrade your brakes. This is a safety feature and you are putting your own life and the lives of people on the road with you, in danger.
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Unread 12-30-2014, 01:22 PM   #9
Unlimited04
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Quote:
Originally Posted by biffgnar View Post
With those tires on an LJ you are well beyond operating parameters for stock brakes. Forget about band aids and properly upgrade brakes.
x2. even 31s push the limits of the LJ's stock brakes...despite upgraded pads & rotors.

with 36" bias IROKs, you're well into territory requiring the Vanco/Black Magic 17" kit w/ dual piston 54mm calipers...
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Unread 02-11-2015, 02:41 PM   #10
jayfrem
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Quote:
Originally Posted by Unlimited04
x2. even 31s push the limits of the LJ's stock brakes...despite upgraded pads & rotors. with 36" bias IROKs, you're well into territory requiring the Vanco/Black Magic 17" kit w/ dual piston 54mm calipers...
Would I be able to retain my 15 " allied beadlocks ?
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Jay Frem
2006 LJ Rubicon - AEV kit, 35", Nth TT, 3"FT, PSC slides and corner crushers,AtoZ bumpers
Land Rover Disovery 1996 on 36.5" IROKS ( locked, 30 spline chromoly axles&CV's, Toy8", Warn M8274-50...)
Range Rover 1983 - mainly stock
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Unread 02-11-2015, 11:43 PM   #11
DoomsdayTJ
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Quote:
Originally Posted by jayfrem View Post
Would I be able to retain my 15 " allied beadlocks ?
No, the kit is designed for 17" wheels or larger.
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