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Author: Subject: Handbrake calipers
nilocp

posted on 17/2/17 at 05:54 PM Reply With Quote
Handbrake calipers

Has anyone come across a mechanical handbrake only caliper?
A mate of mine has just been through the test with a Jag based kit car running a separate hydraulic handbrake system. Failed!

Any ideas guys?

Colin

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Yorkie

posted on 17/2/17 at 06:29 PM Reply With Quote
RD advertise a Wilwood MC4 mechanical park brake caliper in the catalogue.
Not sure how effective it would be though.

[Edited on 17/2/17 by Yorkie]

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obfripper

posted on 17/2/17 at 07:00 PM Reply With Quote
If your mate is feeling flush, new aston v8 vantage h/b calipers are about 210 each, and pads are 25 a set.
I've got one to mot tomorrow, i'll post up the h/b efforts for comparison.

http://www.astonmartinparts.net/Details/Item/1445/V8-Vantage-Handbrake-Caliper-RH
Aston Martin V8 Vantage 4.3 Genuine TRW Rear Handbrake Pad Set

Dave

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B33fy

posted on 17/2/17 at 11:16 PM Reply With Quote
I'm fitting MC4 calipers, they seem a nice piece of kit, with sliding mounts etc as part of the unit. 80 plus vat each. They are more effective than the wilwood spot handbrake calipers which by rally designs own admission aren't that effective.


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obfripper

posted on 18/2/17 at 05:05 PM Reply With Quote
The aston ones were 188 and 203 kgf - enough to pull the vehicle out the rollers with 23% efficiency and more effort available at the lever.
The only difference visible mechanism wise that i could see is the handbrake lever is about 1/3 longer than most cars.
That mc4 look more suitable than the older spot caliper, the old spot caliper struggles to pass mot on a quad based pickup let alone a jag based kit.

Dave

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nilocp

posted on 20/2/17 at 05:35 PM Reply With Quote
Dont think he can run to Aston calipers!

By the way the rear brake discs are 25mm thick! So that creates a problem!

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itsawindupuk

posted on 2/5/17 at 09:09 PM Reply With Quote
quote:
Originally posted by B33fy
I'm fitting MC4 calipers, they seem a nice piece of kit, with sliding mounts etc as part of the unit. 80 plus vat each. They are more effective than the wilwood spot handbrake calipers which by rally designs own admission aren't that effective.





I'm interested in the MC4 calipers but looks like they are designed for vented discs. Is it possible to use spacers to make it work with thinner discs?

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bg0013

posted on 3/5/17 at 02:50 AM Reply With Quote
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http://www.hispeccalipers.co.uk/svault2si.html

hi spec do these rear caliper's, which are a combo hydraulic and separate mechanical hand brake mechanism, and also a mechanical only style.

they are IVA compliant and can be specced in different widths.

does that help?

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AntonUK

posted on 4/5/17 at 06:52 PM Reply With Quote
I saw these at stoneleigh 100 a pair kinda wished I'd picked them up now

https://www.rallydesign.co.uk/product_info.php?products_id=10563





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