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  #1  
Old 01-25-2015, 08:29 PM
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under floor /frame mount booster and master

I'm building a drift/racer
full custom frame , all supra suspension .. I have no room for the booster on the firewall , so I want to move it underneath . I do know I will need new pedals as well .. + it is a standard trany

I have no experience with this . pictures are always welcome

anyone have any insights , cautions , or helpful hints ?
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Old 01-25-2015, 08:32 PM
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ohh and heres a pic

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Old 01-26-2015, 12:20 PM
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Eliminate the booster completely. <SERIOUSLY

http://www.wilwood.com/

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Old 01-26-2015, 10:43 PM
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Quote:
Originally Posted by entropy View Post
Eliminate the booster completely. <SERIOUSLY

http://www.wilwood.com/

E
not gonna happen
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Old 01-27-2015, 12:51 AM
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not gonna happen
Ummm... may I ask why not?
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Old 01-27-2015, 09:40 AM
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Ummm... may I ask why not?
I was thinking the same thing. I love my manual brakes.

Dan
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Old 01-27-2015, 10:10 AM
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Not sure if this is any help, but I saw someone on another forum talking about the BMW 635 hydroboost system. It uses pressure from the power steering pump to assist braking instead of a booster.

More info over at http://retrorides.proboards.com/thre...-fe-conversion
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Old 01-27-2015, 10:48 AM
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I put mine behind the cab on the last build, under the floor on another one. I like it behind the cab to get it out of the way.
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Old 01-27-2015, 12:01 PM
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Possibly...
http://www.speedwaymotors.com/TCI-60...bly,46286.html

Just to simplify things I'm thinking the dumping the power on everything that doesn't tow. Being able to adjust bias, reduced weight, and having full brakes and consistent brakes at all times engine running or not, are all advantages over the generic 'power' system.

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Old 01-27-2015, 09:40 PM
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Quote:
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Ummm... may I ask why not?
eventually , I'm going to have 600 Hp + .. right now it should dyno at ~ 400 .. power assist will be a must . there is no way I'm going to try stop this unit with manual brakes
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Old 01-27-2015, 09:43 PM
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I put mine behind the cab on the last build, under the floor on another one. I like it behind the cab to get it out of the way.

thanks .. some what, I'm going to do ...
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Old 01-28-2015, 12:39 AM
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get a wilwood or similar dual master cylinder and pedal kit. With the proper size masters you wont have any problem stopping. With the dual masters, get the adjuster, and you can dial in the rear brakes while driving. I road race a toyota supra with an LS1 v8 and have no problems braking. Its endurance racing and I have been behind the wheel for 3 hours at 130 degree in car temperatures in Buttonwillow. Just mentioning that to show that its not straining. We actually switched from power to manual for way more feel and control.
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Old 01-28-2015, 03:52 AM
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Loose the booster.
For all the reasons above.
Run a longer pedal for more leverage.

Or run a hydraulic booster - they are tiny.
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Old 01-28-2015, 09:27 AM
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And you really dont even need a longer pedal, you simply need more leverage which can be accomplished by simply moving the master cylinder attachment on the pedal arm closer to the pedal pivot.

I did this on my car using the factory master and Im easily able to get ~1000psi brake pressure (gauge verified) with minimal foot "input".

Some good info part way down about pedal and pedal pressure here http://www.wilwood.com/TechTip/TechFaqs.aspx#PP

Dan
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Old 01-28-2015, 09:16 PM
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Quote:
Originally Posted by zimsport View Post
get a wilwood or similar dual master cylinder and pedal kit. With the proper size masters you wont have any problem stopping. With the dual masters, get the adjuster, and you can dial in the rear brakes while driving. I road race a toyota supra with an LS1 v8 and have no problems braking. Its endurance racing and I have been behind the wheel for 3 hours at 130 degree in car temperatures in Buttonwillow. Just mentioning that to show that its not straining. We actually switched from power to manual for way more feel and control.
that does make sense .... being a noob with racing , I had no idea .. my little community really has no sources for me to look or even try driving something like this .. I would sure like to try it though .
I did end up ordering a DD booster , so I guess I'm going that way

Thanks everyone
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