Author Topic: Brake block off  (Read 18345 times)

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Offline Ted Hlokoff

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Brake block off
« on: May 23, 2014, 05:17:44 PM »
Removing my front calipers from my 99 Viper.  To keep my dual master cylinder in the car what is my best method?

I was thinking that running the brakeline into a remote reservoir half full of brake fluid would work?

Ted

I sucessfully street raced for 25 years (Gov stole drag strip).  I built Show and Race cars for 10 years professionally.  Have been doing well racing Half, Mile and Open Road Rally last few years.  I have many Mopars in my yard, 2 Vipers, 3 Stealth TTs, 440 Duster, 340 Demon, and a dozen project cars.

Offline Stainless1

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Re: Brake block off
« Reply #1 on: May 23, 2014, 06:06:33 PM »
cap it after the proportioning valve?  Just a thought. Don't know much about new fangled cars  :roll:
Stainless
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Offline Ted Hlokoff

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Re: Brake block off
« Reply #2 on: May 23, 2014, 07:43:00 PM »
Thankfully this is NOT ABS 

You're saying just plug the front brakelines.  Remove the spring from the proportioning valve so full pressure goes to the rear brakes?
I sucessfully street raced for 25 years (Gov stole drag strip).  I built Show and Race cars for 10 years professionally.  Have been doing well racing Half, Mile and Open Road Rally last few years.  I have many Mopars in my yard, 2 Vipers, 3 Stealth TTs, 440 Duster, 340 Demon, and a dozen project cars.

Offline Milwaukee Midget

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Re: Brake block off
« Reply #3 on: May 23, 2014, 08:14:43 PM »
I'd be tempted to just drop the $140.00 and get a Tilton single.

https://www.pegasusautoracing.com/productselection.asp?Product=3507

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Well, I guess we're making a LOT of progress . . .  :roll:

Offline 4-barrel Mike

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Re: Brake block off
« Reply #4 on: May 23, 2014, 08:22:59 PM »
If I was doing it (and I may),  it seems that the simplest way would be to disconnect and block at the master cylinder, assuming that it is accessible.

Mike
Mike Kelly - PROUD owner of the V4F that powered the #1931 VGC to a 82.803 mph record in 2008!

Offline manta22

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Re: Brake block off
« Reply #5 on: May 23, 2014, 08:37:42 PM »
Removing my front calipers from my 99 Viper.  To keep my dual master cylinder in the car what is my best method?

I was thinking that running the brakeline into a remote reservoir half full of brake fluid would work?

Ted



Ted;

If you do that with a single master cylinder the brake pedal will go all the way to the floor; the fluid will be compressing (slightly) the air in the reservoir and not applying pressure to the rear pads. With a dual cylinder, just do this:

Leave the calipers in and remove the pads. Cap both front brake lines but don't let air into those lines. If you do, loosen each cap while the brake pedal is pushed down to bleed the air out. Tighten the cap and that's all there is to it.

Regards, Neil  Tucson, AZ
Regards, Neil  Tucson, AZ

Offline Ted Hlokoff

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Re: Brake block off
« Reply #6 on: May 23, 2014, 11:14:19 PM »
OK, I should be able to just screw plugs into the proportioning valve.  I thought that would just made the pedal solid and not allow any rear pressure.  I thought I would probably need to go to a single master for just the rear lines. 

Thank you.  I'll find some plugs or cap off the lines.  I don't need to remove the proportioning spring?
I sucessfully street raced for 25 years (Gov stole drag strip).  I built Show and Race cars for 10 years professionally.  Have been doing well racing Half, Mile and Open Road Rally last few years.  I have many Mopars in my yard, 2 Vipers, 3 Stealth TTs, 440 Duster, 340 Demon, and a dozen project cars.

Offline manta22

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Re: Brake block off
« Reply #7 on: May 24, 2014, 12:37:23 AM »
Ted;

You'll probably have more than enough rear brake to lock the rear wheels on salt, even with the proportioning valve as-is. BTW, a "proportioning valve" is really a pressure limiting valve for the rear hydraulic brake line. A balance bar with two master cylinders really does adjust the F/R braking proportion.

Regards, Neil   Tucson, AZ
Regards, Neil  Tucson, AZ

Offline jl222

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Re: Brake block off
« Reply #8 on: May 24, 2014, 11:11:25 AM »

  Why are you removing the brakes.  The rear tires will just slide if you need to stop fast.
  My cousin had a Studebaker with just rear brakes. After a short tune up blast away from the track at El Mirage. he complained that the brakes were not working. Well they were working but just sliding the tires.
  Like just using rear brakes on motorcycle, will stop but not well.

      JL222