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whats up with the front brakes on this rod???

Discussion in 'The Hokey Ass Message Board' started by domingo, Sep 23, 2012.

  1. domingo
    Joined: Sep 22, 2012
    Posts: 78

    domingo
    Member
    from Lima, Peru

  2. Looks like '40 backing plates with scoops added and Buick drums?
     
  3. slddnmatt
    Joined: Mar 30, 2006
    Posts: 3,682

    slddnmatt
    Member

    there's a set of discs hidden in the drums. they sell kits to do this..not cheap
     
  4. squirrel
    Joined: Sep 23, 2004
    Posts: 50,292

    squirrel
    Member

    to save you from having to try to find it in the video...this is what he's talking about

    sure looks like a disk brake/fake backing plate setup to me
     

    Attached Files:


  5. Master of None
    Joined: Dec 18, 2009
    Posts: 2,279

    Master of None
    Member

    Those are the O'brain truckers hidden disk break set up. I've got the same kit on my truck.
     
  6. These look like the disc brake / buick drum style covers that O'Brien Truckers sells.

    I believe Dennis got the molds from someone in Australia or New Zealand.

    I have a set on my RPU. They are similar to the So-Cal Speed Shop covers but are easier to install and bleed as the caliper is on the front with the bleeder valve on top.

    The drums and backing plates are one unit so the drums don't rotate with the wheels however, but they are well built and good looking.

    Mick
     
  7. Snot Rocket
    Joined: Sep 8, 2012
    Posts: 122

    Snot Rocket
    Member

    The same guy sells kits to cover disc brakes with fake drums and has manufactured the 12" drums with iron liners. Since there is an air inlet that did not exist for the Buick drums, I vote for disc brakes and fake drums. And the backing plate is aluminum, not steel, so it would need a bunch of mounting points for the spring perches and pivot.
     
    Last edited: Sep 23, 2012
  8. domingo
    Joined: Sep 22, 2012
    Posts: 78

    domingo
    Member
    from Lima, Peru

    awesome!!! I think thats the setup to get for my project!!!!

    I will need some serious stopping power for the 392 HEMI on the 34 hiboy!!!

    Im afraid just drums wont cut it! :s
     
  9. squirrel
    Joined: Sep 23, 2004
    Posts: 50,292

    squirrel
    Member

    Buick drum brakes stopped a car that weighed twice as much....
     
  10. 296 V8
    Joined: Sep 17, 2003
    Posts: 4,666

    296 V8
    BANNED
    from Nor~Cal

    So-Cal speed shop started selling them over 10 years ago
     
  11. Snot Rocket
    Joined: Sep 8, 2012
    Posts: 122

    Snot Rocket
    Member

    Are they popular? I built molds for them about 15 years ago for another guy.
     
  12. langy
    Joined: Apr 27, 2006
    Posts: 5,735

    langy
    Member Emeritus

    I have the earlier setup where the drums revolve with the wheel from the people that originally made the kit Rowdys Rodshop in NZ, works perfectly.



    [​IMG]

    [​IMG]
     
  13. Weasel
    Joined: Dec 30, 2007
    Posts: 6,693

    Weasel
    Member

    After they had stolen the idea from the original guy who designed them and manufactured them - but that's the story with a lot of the So Cal stuff - just another Speedway in my book - they're not proud - they'll steal anyone's ideas....:rolleyes:
     
  14. domingo
    Joined: Sep 22, 2012
    Posts: 78

    domingo
    Member
    from Lima, Peru

    yes, having the drums go round and round would be nicer for sure....they also list that option.

    i found their site...they are spendy for sure at near 2k for a setup if you want the full balanced drums!!!

    Yes, I bet the riginal buick drum brakes would work perfect as well.....i just suppose that finding a good complete original set of those, plus rebuilding them and retrofitting them might be as spendy? or am I mistaken???
     
  15. falcongeorge
    Joined: Aug 26, 2010
    Posts: 18,341

    falcongeorge
    Member
    from BC

    X2, and discs dont have an inherent advantage in braking power over drums, thier main advantage is in fade resistance. Some of this edge can be overcome by cooling the drums more efficiently. Thats why the fins are there. It will also help if you drill the backing plates, and add an air scoop to the leading edge of the backing plate. This isnt just a fashion statement, thats why if you look at pre-disc brake F-1 cars and racing bikes, they will have a large air scoop on the leading edge of the backing plate. Thats where this look got started. Probably helped alot when Doane Spencer copied it.
     
  16. 1964countrysedan
    Joined: Apr 14, 2011
    Posts: 1,131

    1964countrysedan
    Member
    from Texas

    Domingo,

    Go through your drums set up. Get everything working as designed. Drive it a couple of thousand miles, then decide if you need to jump on the "disc brake conversion ship"!
     
  17. domingo
    Joined: Sep 22, 2012
    Posts: 78

    domingo
    Member
    from Lima, Peru

    Yes, brake fade is the main advantage....but I can tell you whenever I swap drums or even stock calipers for multi piston calipers the difference is like night and day. Nobody cant argue that disc brakes are a superior design. I like my cars to go, but I like em even better when they stop on a dime!!!! waaaawawwwawaaaaaaaaaa
     
  18. domingo
    Joined: Sep 22, 2012
    Posts: 78

    domingo
    Member
    from Lima, Peru

    My 34 curretnly has the original brakes on it!!!!
     
  19. Snot Rocket
    Joined: Sep 8, 2012
    Posts: 122

    Snot Rocket
    Member

    From my experience, this is common in rodding, unfortunately. So-Cal is not the only culprit. Maybe just the best known. Sometimes what goes around comes around. I'll bet So-Cal has a sob story, too.
     
  20. poofus1929
    Joined: Jan 29, 2008
    Posts: 897

    poofus1929
    Member
    from So Cal

    I personnally think that 40 Ford backing plates with Buick drums looks killer. No need to convert to disc brakes on a light car.
     
  21. metalshapes
    Joined: Nov 18, 2002
    Posts: 10,726

    metalshapes
    Tech Editor

    One thing that isnt mentioned very often is that discs are not self energising.

    Which makes them a lot like the early Ford juice brakes that people dismiss as being inferior.

    Like you said, the biggest advantage of discs is that they can dissipate heat a lot better.
    ( which makes them the best option in some situations )

    But I wonder how much of that advantage is left, after you cover it all up with fake finned buick stuff.
     
  22. Mr48chev
    Joined: Dec 28, 2007
    Posts: 30,197

    Mr48chev
    Member

    There is in certain ares of the world where the inspectors will only pass your car with the added hemi engine if it has disk brakes.

    We did toss that one around in another thread about another Australian car that has a hemi engine in it. The consensus there was that he should be able to match the brakes to the brakes that came on the vehicle that the engine originally came from. Meaning that if the engine doner car had 11x2-1/2 front brakes and 11x2-1/4 rear brakes that should suffice. The inspectors in OZ may not see it that way though.
     
  23. 296 V8
    Joined: Sep 17, 2003
    Posts: 4,666

    296 V8
    BANNED
    from Nor~Cal

    fake stuff on your car = no bueno
     
  24. that is a slick set up. is it 2000 for the whole kit and kabooltle? discs, callipers and drum backing plate setup or just for the drum set and backing plates?

    if its for the whole set up 2000 really is not that bad.

    no one can argue that disc brakes work 100 times better,are less maintenance and easier for the layman to set up and keep set up correctly then drum brakes


    i had 4 wheel manual "hucks" style drum brakes on my 50 chevy when i bought it with all new parts (drums,shoes,cylinders,master,lines etc.) and that thing stopped like shit!!!

    years ago i had a 53 chrysler with manual 4 wheel drum "bendix" style brakes. the size and weight of both cars were about the same.

    the chrysler stopped amazing!!!!!! not a massive amount of pedal effort and non of that "oh shit oh shit oh shit" type stopping situations.


    i prefer a disc/drum brake set up,for the reasons i already posted,i find with a disc/disc set up the pedal is a bit spongy and low as were with a disc/drum set up with the rear shoes adjusted correctly you get a nice firm pedal.

    easy enough,with all my cars if it did not already have it i would make an access hole in the backing plate and when i had the car on the hoist just give the adjuster a few clics and your golden.


    also years ago i had an o/t original vw beetle and what i did was drill 4 holes around the front of the drum between the rim spokes so they were exposed and them punched lovers into the backing plate,not only did this help with cooling the brakes but also pulled all the brake dust out and kept everything very clean.


    also in design drum brake are far better in stopping a car as there is much more surface area and gripping power with the self energizing aspect then with disc brakes,the leading advantage with disc is the almost no need for maintenance and adjustment and the superior cooling effect soo less or no brake fade is emergency or repeated stopping.
     
  25. squirrel
    Joined: Sep 23, 2004
    Posts: 50,292

    squirrel
    Member

    That's what bothers me most about these brakes. If you really think you need disk brakes, then just put disk brakes on it. If you want to spend a lot of money to make neat looking finned brakes that work well, then go ahead and spend the time and money to make put good drum brakes on it that work well and look good.

    Sometimes, I get the feeling that some guys think it's all about appearances.
     
  26. langy
    Joined: Apr 27, 2006
    Posts: 5,735

    langy
    Member Emeritus

    Never had any fade with mine.
     
  27. metalshapes
    Joined: Nov 18, 2002
    Posts: 10,726

    metalshapes
    Tech Editor

    Me neither.

    ( and I'm running drums...;) )
     
  28. langy
    Joined: Apr 27, 2006
    Posts: 5,735

    langy
    Member Emeritus

    Hope this isn't gonna become another 'generator vs altnernator' thread :rolleyes:
     
  29. Master of None
    Joined: Dec 18, 2009
    Posts: 2,279

    Master of None
    Member

     
  30. rexrogers
    Joined: Sep 18, 2007
    Posts: 1,033

    rexrogers
    Member

    We made a set for a three window a while back like the way they turnned out blending in with the backing plates.

    [​IMG]

    [​IMG]

    [​IMG]
     

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