Drag Racing Tech
Sponsored by:
Sponsored by:

question on setting up drag brakes

Thread Tools
 
Search this Thread
 
Old Nov 11, 2009 | 09:20 PM
  #1  
Taubr Unit's Avatar
Thread Starter
TECH Veteran
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (32)
 
Joined: Nov 2005
Posts: 4,155
Likes: 31
From: Chicago
Default question on setting up drag brakes

I got my front Aerospace all bolted up and ready to bleed out and i checked out the alinment with the caliper/rotor and my caliper sits about 1/8in too far to the inside. Is this a issue at all?? Or will the pistons just adjust to it when i bleed it all out? Or ill need to space out the caliper bracket off the spindle which i dont really want to do. Do the calipers need to be set PERFECTLY centered with the rotor?
Reply
Old Nov 11, 2009 | 11:18 PM
  #2  
Steve Burger's Avatar
LS1TECH Sponsor
iTrader: (33)
 
Joined: Jul 2002
Posts: 4,399
Likes: 0
From: Out on the farm in Central IL
Default

You shpild have a set of shims for the caliper bolts. Use them to center the caliper.
Reply
Old Nov 11, 2009 | 11:28 PM
  #3  
5.3LJimmy's Avatar
10 Second Club
20 Year Member
iTrader: (10)
 
Joined: Jun 2004
Posts: 2,279
Likes: 1
From: Napoleonville, LA
Default

My Strange brakes came with shims that go between the caliper and mounting bracket to center it on the rotor. I would think that Aerospace would be similar.
Reply
Old Nov 12, 2009 | 05:52 AM
  #4  
Taubr Unit's Avatar
Thread Starter
TECH Veteran
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (32)
 
Joined: Nov 2005
Posts: 4,155
Likes: 31
From: Chicago
Default

i do have shims but thats not where i need them. I dont know how the strange ones mount but aerospace calipers get mounted on the backside on the bracket and i need it shimed out more, so shims there would make it worse... followin me? So i need it flush on the bracket and then some.
Reply
Old Nov 12, 2009 | 06:21 AM
  #5  
JL ws-6's Avatar
Race your car!
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (50)
 
Joined: Mar 2004
Posts: 15,421
Likes: 18
Default

Can you please put a picture up?
Reply
Old Nov 12, 2009 | 06:25 AM
  #6  
Taubr Unit's Avatar
Thread Starter
TECH Veteran
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (32)
 
Joined: Nov 2005
Posts: 4,155
Likes: 31
From: Chicago
Default

Not at the moment, at work now. Wanted to get them blead out tonight hopefull someone knows this issue
Reply
Old Nov 12, 2009 | 06:32 AM
  #7  
JL ws-6's Avatar
Race your car!
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (50)
 
Joined: Mar 2004
Posts: 15,421
Likes: 18
Default

It's a strange problem, I have the hub style aerospace on my car right now and they went together perfect without any shims or anyhing, the rears needed to be shimmed a little, but not bad. Fronts were dead nuts perfect right off the bat.

Odd... sounds like something isn't together right or something.

Get a pic up tonite and I will try to look back here when I get home and see if it makes any sense.
Reply
Old Nov 12, 2009 | 03:16 PM
  #8  
promod1955's Avatar
11 Second Club
iTrader: (44)
 
Joined: Sep 2002
Posts: 1,312
Likes: 3
From: Virginia Beach, VA
Default

make sure you take some lug nuts and tighten the rotor up against the face of the hub in case the rotor isnt sitting flat against it. You may have already did that. Just double checking
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Nov 12, 2009 | 04:23 PM
  #9  
kp's Avatar
kp
8 Second Club
iTrader: (34)
 
Joined: Nov 2001
Posts: 10,852
Likes: 1
From: Knoxville, TN
Default

Make sure the caliper plates are on the right way, the bigger part of the steel inserts should be on the inside. The shims go on the aluminum spacers on the 3/8 caliper bolts to move the caliper to the outside.

Pic of how should look.

Last edited by kp; Nov 23, 2009 at 02:32 PM.
Reply
Old Nov 12, 2009 | 05:18 PM
  #10  
NHRAFORMULA00's Avatar
10 Second Club
20 Year Member
iTrader: (2)
 
Joined: Mar 2002
Posts: 1,629
Likes: 13
From: Manteno,illinois
Default

Kp those look like the old style brakes without the Hub.Mine are New style with the Hub.The spacers go on the outside of the Drop Spindle so that the bracket does not sit against it.Also my caliper is a little off center,but not a lot.You cold shim it out if needed.If you have stock lower a-arms,you will need to clearance it quite a bit(1/4") at the bottom near the disc.When it is at rest it has clearance,but when it moves up and down it will rub the disc.
Reply
Old Nov 12, 2009 | 05:28 PM
  #11  
kp's Avatar
kp
8 Second Club
iTrader: (34)
 
Joined: Nov 2001
Posts: 10,852
Likes: 1
From: Knoxville, TN
Default

I think both styles use the same caliper and bracket, just the hub and rotor are different no?

One thing for sure is the instructions werent very clear on anything with the the ones I have..
Reply
Old Nov 12, 2009 | 05:50 PM
  #12  
Taubr Unit's Avatar
Thread Starter
TECH Veteran
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (32)
 
Joined: Nov 2005
Posts: 4,155
Likes: 31
From: Chicago
Default

KP, my brakes are different then ures, i got the hub kit with everything. Im gonna go get some pics now and post um up in a bit here.
Reply
Old Nov 12, 2009 | 07:21 PM
  #13  
Taubr Unit's Avatar
Thread Starter
TECH Veteran
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (32)
 
Joined: Nov 2005
Posts: 4,155
Likes: 31
From: Chicago
Default

OK, heres some pics.. You can see that i can not shim the caliper out from the bracket because its mounted on the outside. Only way is to space the rotor inwards or the bracket off the spindle arm.




Reply
Old Nov 12, 2009 | 07:41 PM
  #14  
kp's Avatar
kp
8 Second Club
iTrader: (34)
 
Joined: Nov 2001
Posts: 10,852
Likes: 1
From: Knoxville, TN
Default

Yea thats definitely different then the old style. If the rotor, bearings and everything else is installed correctly I'd probably just leave it unless the rotor was hitting the caliper itself. Mine arent perfectly centered either..
Reply
Old Nov 12, 2009 | 08:22 PM
  #15  
Taubr Unit's Avatar
Thread Starter
TECH Veteran
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (32)
 
Joined: Nov 2005
Posts: 4,155
Likes: 31
From: Chicago
Default

yea the rotor is still a decent amounts away its just a funny angle. Id hate to space out the bracket off the spindle and not have it flush on it for strangth reasons.
Reply
Old Nov 12, 2009 | 09:58 PM
  #16  
promod1955's Avatar
11 Second Club
iTrader: (44)
 
Joined: Sep 2002
Posts: 1,312
Likes: 3
From: Virginia Beach, VA
Default

I see what you got now. Thought they were like kp's. Im sure you would like them centered up but that should be ok.
Reply
Old Nov 13, 2009 | 08:53 AM
  #17  
kp's Avatar
kp
8 Second Club
iTrader: (34)
 
Joined: Nov 2001
Posts: 10,852
Likes: 1
From: Knoxville, TN
Default

Originally Posted by Taubr Unit
yea the rotor is still a decent amounts away its just a funny angle. Id hate to space out the bracket off the spindle and not have it flush on it for strangth reasons.
Same with spacing the rotor in, I wouldnt do it. I wouldnt worry about it too much, just keep an eye on how the pads are wearing.
Reply
Old Nov 13, 2009 | 09:54 AM
  #18  
JL ws-6's Avatar
Race your car!
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (50)
 
Joined: Mar 2004
Posts: 15,421
Likes: 18
Default

Yours seem to be alot farther off then mine were, almost like your axles went into the spindle farther then they should have. You didn't grind on them at all where the plate sits to remove rust or anything did you before you painted the spindles?

That's the only thing I can think of that would cause it to be off like that. Being that my car had very lieel rust at all on the spindles, I was able to just wire brush them before I painted mine. I wonder if that's why I didn't have that problem.

Again like mentioned, if it's not perfect, I wouldn't worry about it, as long as the rotor isn't hitting the caliper you should be o.k., just keep an eye on pad wear (mine didn't wear much at all)
Reply
Old Nov 14, 2009 | 08:24 AM
  #19  
NHRAFORMULA00's Avatar
10 Second Club
20 Year Member
iTrader: (2)
 
Joined: Mar 2002
Posts: 1,629
Likes: 13
From: Manteno,illinois
Default

Thats how mine looked before i put the shims between the drop spindle and the bracket.There is no reason the bracket needs to be up against the drop spindle,if you check it with a straight edge you will see it is not perfectly straight.
Reply
Old Nov 14, 2009 | 10:29 AM
  #20  
Taubr Unit's Avatar
Thread Starter
TECH Veteran
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (32)
 
Joined: Nov 2005
Posts: 4,155
Likes: 31
From: Chicago
Default

i got it all good, my drivers side was actually fine and n the pass. side i put shims infront of the hub so it moves the rotor inwards to center in the caliper. Worked out good. Now i got them kinda bled out then there still slightly off so ill have to FINE tune them when there all bled out.
Reply




All times are GMT -5. The time now is 09:56 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE