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Old 06-13-2019, 12:27 AM   #151
122power's Avatar
Join Date: Feb 2009
Location: Where have all the quad squares gone? VV,Ca

Originally Posted by culberro View Post
Wilwood forged superlight internals (1.62 bore) in the front with 11.75" x1.25" rotors, and some dynalight 4 piston (1.12 bore) on 11x0.8" rotors out back.

MCs are 3/4" front and rear, with a Tilton bias bar added into the stock pedal box using a 6:1 ratio. I'd probably go 5.5:1 next time.

Stay tuned for a brake kit using these calipers from STS... they'll fit withing an OEM 16" wheel or most aftermarket 15" wheels.

There are some pictures of the pedal box and firewall plate in this album:

Rally Racing
Nice photos! Have a build thread? Always like your posts and info that you post up!
Post pics in Orhpan Thread or YOU will be banned.
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Old Today, 05:00 PM   #152
His Dudeness, El Duderino
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Join Date: Dec 2009
Location: Torrance, CA

More thoughts about brake boosters - I just found this Australian remote booster, the PBR VH44. No idea if this is a decent product or not but this (or something like it) may solve a few problems at once for me here. It would allow vacuum boosted brakes for simplicity's sake, without the need for any electric or electro-hydraulic boosting apparatus. The fact that it's de-coupled from the master cylinder would let me choose the best MC for the job in regards to volume ratios vs. the calipers. I think it may also be compact enough to hide it under the inner fender, ahead of the front wheel on the driver's side.

I'm writing this up now mostly as a reminder to myself to look into this more!
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Old Today, 05:42 PM   #153
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Join Date: Apr 2015
Location: Santa Cruz, CA

That's interesting. So the remote booster just gets plumbed in-line from the master to the junction block? I'm also sort of always looking for good options to remove the stock booster.
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Old Today, 06:12 PM   #154
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Join Date: Oct 2016
Location: Kingsville, MD/Morgantown, WV/Your mom's house

Jaguar did a similar thing with much of their 60's and 70's stuff.
Most familiar to me is the 3.8S/4.2S cars. They had a master on the firewall, then a remote booster and "solenoid" plumbed in to improve power.
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Old Today, 06:25 PM   #155
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Join Date: Nov 2011
Location: So Cal

Won't you need 2 of the boosters to have power brakes on all 4 wheels?
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Old Today, 08:51 PM   #156
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Join Date: Jul 2008
Location: Memphis, TN

I'm guessing the master on the firewall is just a single circuit and its only job is to jab at the back of the booster, just like the rod directly from the pedal normally would, and then the master on the remote booster has a normal-ish F/R split. PBR is reasonably well known for pads, so it might not be garbage, lol. I wish I'd known of something like that back when I had a 140 I was dreaming about engine swapping
80 245 8VNA / 93 245 5.3L LSx / 90 Miata / 92 Spec Miata
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