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Kirkham Motorsports

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  #1 (permalink)  
Old 12-12-2021, 06:36 AM
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Default Dual circuit braking system conversion

Good afternoon fellow cobra enthusiasts,

I want to convert my original car (CSX214X) from a single to a dual circuit braking system.

I still runs its original Girling 0625 unit.

I do not want to cut the frame or chassis but cant find any tandem / dual brake cylinder with external reservoirs…

Thanks a lot in anticipation,

Marius
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Old 12-12-2021, 06:58 AM
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Would this work?: Wilwood
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Old 12-12-2021, 07:06 AM
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My intial thoughts would be to replace the pedal box with one made for dual masters. CSXParts.com has the master cylinders, bias bar, clevises, etc but I don't think they sell a box. Mght want to contact them.

Larry
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Old 12-16-2021, 01:31 AM
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Hello Gentlemen,

I know it’s usually done by replacing part of the pedal box with a new one to make space for two single brake master cylinders, but apart from ruining the side view of the cars I do not want to cut anything and leave the chassis completely unmolested.

Is there no solution with a Tandem / double master cylinder? It just needs a small bore, less than 1 inch..

Cheers & happy xmas season,

Marius
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Old 12-16-2021, 03:59 AM
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So, the link I offered won't work?
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Old 12-16-2021, 05:39 AM
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What am I not seeing here. Does it not have dual master cylinders? Does this not serve the same purpose as a dual circuit cylinder?
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Old 12-16-2021, 07:43 AM
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Quote:
Originally Posted by MAStuart View Post
What am I not seeing here. Does it not have dual master cylinders? Does this not serve the same purpose as a dual circuit cylinder?
I'm assuming this is what he has:
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Old 12-16-2021, 07:52 AM
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Yes Tommy but his car should have 2 of them. So what is to be gained by changing to the one you linked to?
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Old 12-16-2021, 08:40 AM
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Hi Marius 289

Could you give us a little history on how long you have owned this Cobra?
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Old 12-16-2021, 12:12 PM
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0.625" bore: https://wilwood.com/MasterCylinders/...emno=260-11097



7/8" or 15/16" bore: https://wilwood.com/MasterCylinders/...ter%20Cylinder

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Old 12-16-2021, 02:51 PM
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Quote:
Originally Posted by MAStuart View Post
Yes Tommy but his car should have 2 of them. So what is to be gained by changing to the one you linked to?
Single master/single circut until CSX2164.

Larry
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Old 12-16-2021, 04:06 PM
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Quote:
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Single master/single circut until CSX2164.

Larry
Really I did not know that! Any chance you have a picture of one of those brake boxes?
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Old 12-16-2021, 04:27 PM
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Default CSX2165 onward

Quote:
Originally Posted by MAStuart View Post
Really I did not know that! Any chance you have a picture of one of those brake boxes?
The enclosure stayed much like CSX2001-CSX2164 cars. A.C. added an aluminum adapter and all the parts to make two brake circuits for CSX2165-CSX2200 cars.

At CSX2201 a new larger enclosure was added as part of the welded chassis.

CSX2165 was also the first car to get steel differential hangers instead of the cast iron original which had a breakage problem.
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Old 12-16-2021, 06:26 PM
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Quote:
Originally Posted by MAStuart View Post
Really I did not know that! Any chance you have a picture of one of those brake boxes?
I don't, sorry!

Larry
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