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caliper location Question

Discussion in 'The Hokey Ass Message Board' started by tomslik, Jan 27, 2008.

?
  1. front

    0 vote(s)
    0.0%
  2. rear

    21 vote(s)
    70.0%
  3. don't matter, it'll never go fast enough to need brakes

    9 vote(s)
    30.0%
  1. tomslik
    Joined: Mar 3, 2001
    Posts: 2,161

    tomslik
    Member

    building the caliper brackets/lowering plates for the rambler and,well, i've got room on the front side AND the rear side of the spindle.
    i'm leaning toward the rear BUT, what say you?
    and why?

    looks are NOT important, function is!
     
  2. draggin'GTO
    Joined: Jul 7, 2003
    Posts: 1,795

    draggin'GTO
    Member

    Doesn't matter one bit.

    Either location will stop the car the same.
     
  3. Unkl Ian
    Joined: Mar 29, 2001
    Posts: 13,509

    Unkl Ian

    Just make sure the bleeder screws are at the highest point.
     
  4. thirty7slammed
    Joined: Sep 1, 2007
    Posts: 886

    thirty7slammed
    BANNED
    from earth

    Your thinking right,put your caliper to rear.
     
  5. tomslik
    Joined: Mar 3, 2001
    Posts: 2,161

    tomslik
    Member


    ok,why?
    i KNOW it'll stop the car no matter where i put it but i'm thinking airflow with the caliper at the rear may cool the rotor better but it ain't gonna be a road racer...
     
  6. cretin
    Joined: Oct 10, 2006
    Posts: 3,059

    cretin
    Member

    I can't think of one car I've seen with the caliper in front of the rotor. It must be for a reason.
     
  7. tomslik
    Joined: Mar 3, 2001
    Posts: 2,161

    tomslik
    Member


    early camaro, for 1...
     
  8. draggin'GTO
    Joined: Jul 7, 2003
    Posts: 1,795

    draggin'GTO
    Member

    I know that '79 -'81 Firebirds with disc brake rear ends had one caliper in front and one in back on the rear axle.

    I bought a set of front disc brake conversion brackets about 20 years ago from Danchuck for my '57 Bel Air that bolted to the stock spindles. It used '68 -'72 GM A-body calipers mounted toward the front, the calipers were swapped left to right in order to put the bleeder screws at the top.

    Doesn't matter if they're at the front or rear.
     
  9. thirty7slammed
    Joined: Sep 1, 2007
    Posts: 886

    thirty7slammed
    BANNED
    from earth

    OK you got me, all the oem' s that Iv'e seen mount caliper to rear on front brakes, all the after markets the same deal. Maybe it really dosen't matter as long as bleeder screw is accesible, but Id mount rearward if possible.
     
  10. jusjunk
    Joined: Dec 3, 2004
    Posts: 3,138

    jusjunk
    BANNED
    from Michigan

    here we go again...
    Put the ****ers in the rear so they dont look gay.
    Dave :)
     
  11. tomslik
    Joined: Mar 3, 2001
    Posts: 2,161

    tomslik
    Member

    don't you have some sheep to breed?
     
  12. farna
    Joined: Jul 8, 2005
    Posts: 1,311

    farna
    Member

    It doesn't matter, as someone posted already. If you have an early Rambler they will HAVE to go to the front. Why? Clearance. Not enough in the rear, mount the calipers there and they hit... something. I've done several Rambler conversions, but don't recall what gets in the way. It's the same on pretty much all 69 and earlier cars, it's the way the steering knuckle is made IIRC. You can swap the brackets from side to side to change front or rear location and keep the bleeder screw on top/
     
  13. jonny o
    Joined: Oct 26, 2007
    Posts: 836

    jonny o
    Member

    If it really doesn't matter physically to the clearance, bleeders or hose, then I would say put it in the back so the brake dust is closer to the "exit."
     
  14. revkev6
    Joined: Jun 13, 2006
    Posts: 3,350

    revkev6
    Member
    from ma

    well, it SORTA matters. there is a reason why calipers are generally put to the rear. under hard quick braking if you look at the leverage points, the wheel will try to rotate around the caliper. if you have them in the front that rotation will try to lift the wheel (minutely mind you) off the ground. transversely in the back it will plant the tire on the ground.

    these are not HUGE differences, and i've never done a comparison one way or the other to see the change, but that is the way my ch***is builders have explained it to me.
     
  15. Hellfish
    Joined: Jun 19, 2002
    Posts: 6,802

    Hellfish
    Member

    That's a relief. Due to clearance issues, my disk brake conversion kit for my Econoline has the calipers up front. Some friends thought it was odd, but couldn't offer a reason why it would be bad other than "that's the way everyone always does it"
     
  16. mustangsix
    Joined: Mar 7, 2005
    Posts: 1,541

    mustangsix
    Member

    That would be kind of like lifting yourself off the ground by yanking up on your socks.....:rolleyes:

    There is an effect called anti-dive that uses the rotational force of the brake to cause the suspension to "lift" and preventing the nose from diving under braking, but it's done by placement of the control arms and has nothing to do with the location of the caliper. The main reason for sticking a caliper in front would be for clearance (or if you had some supercar with two calipers).

    BTW, my Mazdaspeed Miata, my son's Protege5, the wife's Camry, and my daughters Mazda3 all have forward mounted calipers. So did my Bonneville, Grand Prix, and Jaguar. I think all of them were like that simply because it was easier to package that way, so its not uncommon.
     
  17. TexasDart
    Joined: Oct 11, 2007
    Posts: 853

    TexasDart
    Member

    I had to mount mine to the rear on my 65 to clear the anti-sway bar. Guess this means that 76 dodge darts may be stock to the front..hmm...
     
  18. lucky_1974
    Joined: Nov 18, 2002
    Posts: 1,069

    lucky_1974
    Member

    A guy in our car club called and talked to Wilwood about it and they staid that it was okay to go either way.
     
  19. JustDave
    Joined: Jan 22, 2007
    Posts: 92

    JustDave
    Member

    I don't think it makes any difference I have seen a lot of foreign and domestic cars with them mounted front and rear. I personally like them mounted to the backside of the wheel on older stuff as I can make a much neater looking installation. I don't like having calipers and all the related plumbing hanging out in front on a nice looking old car.
     
  20. dbradley
    Joined: Jan 6, 2007
    Posts: 1,036

    dbradley
    Member

    On my C6, rears in the front........ fronts in the rear.
     
  21. damnfingers
    Joined: Sep 22, 2006
    Posts: 1,287

    damnfingers
    Member

    Toyota Tacoma pickem-up trucks have 'em in front on the front wheels.
     
  22. zman
    Joined: Apr 2, 2001
    Posts: 16,790

    zman
    Member
    from Garner, NC

    either way is fine... early motorcycles all had them in the front, now they're all in the rear, but it is not a huge deal either way...
     
  23. Scott K
    Joined: Oct 17, 2005
    Posts: 824

    Scott K
    Member

    I work as a brake engineer at an OEM. We put the calipers where they fit best, front or rear doesn't matter.

    I'm working on a program that uses the same caliper on 2 different vehicles. One has the caliper mounted on the front and the other mounts the caliper on the rear. Decision based strictly on clearing "stuff".

    Just pay attention on how you route your brake lines and hoses.
     
  24. Rex Schimmer
    Joined: Nov 17, 2006
    Posts: 743

    Rex Schimmer
    Member
    from Fulton, CA

    If it doesn't make a difference then mount them on the side that the steering arms are on. Front steer, mount them in the front, rear steer, mount them in the rear. You want the m*** of the caliper close to the steering for the best stability while braking. It does make a difference.

    Rex
     
  25. aceracer23
    Joined: May 11, 2010
    Posts: 87

    aceracer23
    Member
    from rural

    ok, what if the steering arm is in the way of the lower caliper bolt if i try too put mine on the rear side, it looks funny on the front side, but i guess there is no option for me
     
  26. hotroddon
    Joined: Sep 22, 2007
    Posts: 28,240

    hotroddon
    Member

    Scott, what do think of Rex's comment below?

     
  27. CoolHand
    Joined: Aug 31, 2007
    Posts: 1,942

    CoolHand
    Alliance Vendor

    Racers put them up front because it's easier to route the cooling duct to the caliper shroud that way.

    The duct has to mount to the front fascia, and the coil over or damper usually prevents you from running the hose behind the upright to get to a rear mounted caliper, so we mount them on the front.

    This can get a little busy if your car has front steer spindles and/or a front mounted anti-roll bar, but it's still less busy than trying to snake a 3"-4" duct hose between a coil over damper ***embly and the spindle (while keeping it from getting mashed flat during suspension/steering movement).

    Other than that, it really doesn't matter.
     
    Last edited: Aug 13, 2010
  28. bjf08816
    Joined: Jul 28, 2010
    Posts: 41

    bjf08816
    Member

    I mounted my front brake calipers on the back side, and the rear brake calipers to the front side of the axle on my '66 Chevy Truck. Why, that is where they were located on the donor vehicles. I have seen many imports with them located in the opposite positions, I really dont think it matters as long as the bleeder screw is at the uppermost part of the caliper.
     
  29. Scarebird
    Joined: Sep 26, 2006
    Posts: 1,023

    Scarebird
    Alliance Vendor
    from Moita, PT

    Another thing to consider is how the brake lines are routed. Having flex lines cross the spindle over to the hard line is usually a good thing to do as it stresses the flex lines that much less.
     

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