Author Topic: Power Brake issues in my Hemi car  (Read 1979 times)

Offline Mike71Cuda

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Power Brake issues in my Hemi car
« on: August 05, 2008 - 02:07:50 PM »
Having some work done on my 71 cuda clone and shop is telling me there are no brakes in the car. Engine is a straight Hemi buildup, not a crate motor, hydraulic cam. Brakes are 11 inch after-market up front with big drums out back. Booster is a smaller diaphargm unit from MP brakes in N. Carolina. He suggest that with as little vacuum I have with all that power I go o non-power brakes. Thoughts? not worried about HP lose with PWR but need to stop too! What will I need to bring it down to man. brakes time money?




Offline Changin Gears

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Re: Power Brake issues in my Hemi car
« Reply #1 on: August 05, 2008 - 04:57:05 PM »
Lose the power booster, best feeling brakes are manual disk.  They work great.


The goal never changes - Stop the 60' timer with your back tires

Offline MEK-Dangerfield

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Re: Power Brake issues in my Hemi car
« Reply #2 on: August 05, 2008 - 05:25:30 PM »
I have manual brakes. No problems. It does build leg strength too.   :lol:


   Mike

Mike

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Offline 73EStroker

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Re: Power Brake issues in my Hemi car
« Reply #3 on: August 05, 2008 - 05:57:26 PM »
If you have power steering, go with the hydraboost setup. A friend had the same trouble with his 64 vette 468CI and now with the hydraboost it will stand on its chin at 100MPH. So one does have to be cautious about how hard he stands on the brakes as it will lock the wheels. bit like driving an empty semi-truck
Barry (Salmon Arm)

Offline Moparal

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Re: Power Brake issues in my Hemi car
« Reply #4 on: August 05, 2008 - 06:06:12 PM »
I have manual discs on my 70 440-6 and have no issues and stops very good :2thumbs:

Offline Mike71Cuda

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Re: Power Brake issues in my Hemi car
« Reply #5 on: August 06, 2008 - 06:17:23 AM »
Right now I want to do the quickest thing to get back on the road.
OK so lose the booster and going manual is fine, what does it entail me doing?

Offline Changin Gears

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Re: Power Brake issues in my Hemi car
« Reply #6 on: August 06, 2008 - 09:33:40 AM »
2 things - reroute or get new master cylinder brake lines and get a manual brakes push-rod.  Actually 3 thrings, you need the rubber retaining ring that holds the pushrod in the master cylinder.


The goal never changes - Stop the 60' timer with your back tires

Offline Chryco Psycho

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Re: Power Brake issues in my Hemi car
« Reply #7 on: August 06, 2008 - 11:44:24 AM »
 :iagree:
 lose the power brakes

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Offline Changin Gears

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Re: Power Brake issues in my Hemi car
« Reply #8 on: August 06, 2008 - 03:51:24 PM »
By the way, my tow vehicle below has manual disc and its stops great.


The goal never changes - Stop the 60' timer with your back tires

Offline Mike71Cuda

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Re: Power Brake issues in my Hemi car
« Reply #9 on: August 06, 2008 - 05:28:40 PM »
I did not see anything on Master Powers website with regard to man brakes push-rod or retainer ring.
Is it as simple as a NAPA part? Sorry for the dumb replies, but I bought the smaller booster to get it to fit when I installed the Hemi, now not enough just been my nightmare and want to get back on the road, soon! Thx for the help

Offline heminut

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Re: Power Brake issues in my Hemi car
« Reply #10 on: August 06, 2008 - 08:57:18 PM »
You'll also need the steel backing plate that goes between the master cylinder and the firewall!
1970 5.7 Hemi Cuda

Offline 71chally416

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Re: Power Brake issues in my Hemi car
« Reply #11 on: August 06, 2008 - 09:04:03 PM »
:iagree:
 lose the power brakes

 :iagree:  Wilwood Manual discs on mine and it also stops great.  :2thumbs:
Parts from any E or B body should interchange, but I don't know where you get repo parts like that. Mancini sells the aluminum master cylinder and parts for that and I've been told by a friend with a 340 Dart that it works much better than the stocker. 
« Last Edit: August 06, 2008 - 09:11:01 PM by 71chally416 »
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Offline Mike71Cuda

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Re: Power Brake issues in my Hemi car
« Reply #12 on: August 08, 2008 - 08:13:33 PM »
Ok so here is what Master Power says. The replacement man. Master Cyl is $90.00 the booster to get it up is $300.00 sounds liek a no-brainer huh? I am just afraid with teh MP guys. They are really selling generic (mostly GM stuff) and not real Moapr guys/gurls. I am wondering as someone mention just to go to someone liek Mancini Racing in Michigan and talk we people who know my stuff. Ideas?

Offline Changin Gears

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Re: Power Brake issues in my Hemi car
« Reply #13 on: August 08, 2008 - 10:37:28 PM »
I there something wrong with your current master cylinder? I would just use it.


The goal never changes - Stop the 60' timer with your back tires

Offline Chryco Psycho

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Re: Power Brake issues in my Hemi car
« Reply #14 on: August 09, 2008 - 02:40:34 AM »
your current master may or may not have the groove inside the rear piston to retain the pushrod

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