Rear brake conversion?

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CJ_Puma1.7
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Rear brake conversion?

Post by CJ_Puma1.7 »

Hi guys, am planing to modify my 1.7 puma for tarmac/gravel rally use while maintain it road legal.
First thing am planing to do is to change rear brakes from drums to disks while relocating all the piping through the interior and removing ABS...
Would any of that deny me from rally racing or no... especially the conversion itself? :?:
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Danmids
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Re: Rear brake conversion?

Post by Danmids »

No, you'll be fine with a disc conversion.
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Re: Rear brake conversion?

Post by CJ_Puma1.7 »

Thanks mate :grin: , by the way, are there any pumas with rear disk brakes as standard (except FRP) or do people use conversion kits of some kind?
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Re: Rear brake conversion?

Post by lusid666 »

iirc, most people use ford focus rear disks, use the search function at the top of the page, there should be loads of info
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Re: Rear brake conversion?

Post by aberdarepuma »

i just did it i used focus mk1 2ltre hubs disks calipers and pads,,, and handbrake cable from the same car, st150 handbrake cable fits too,,, im still trying to get the abs to work thats a bit more complicated :/
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Re: Rear brake conversion?

Post by CJ_Puma1.7 »

That's good, I think my neighbour is actually breaking one 2ltr pocus :lol:
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Re: Rear brake conversion?

Post by aberdarepuma »

oh well thats lucky :d
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Re: Rear brake conversion?

Post by jacko »

you need a copy of the s1400 or s1600 rally build manuals (car came as a kit from ford)

i have copies of both....
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Re: Rear brake conversion?

Post by CJ_Puma1.7 »

How much you want for one?
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Re: Rear brake conversion?

Post by jacko »

£15 for s1400, £25 for s1600

supplied by ford photocopied and spiral bound, 90-120 pages ish
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Re: Rear brake conversion?

Post by CJ_Puma1.7 »

As I got 1.7 I presume I need the s1600 one is that right?
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Re: Rear brake conversion?

Post by jacko »

not really....

the s1400 is a '£50,000' ish kit car that uses mainly standard parts....

the s1600 is a £100,000 plus kit car that uses some very trick custom made parts!!!

up to you which one would be more relevant!

id suggest s1400 but i'll have a look when im home at the brakes sections again and see...
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Re: Rear brake conversion?

Post by Mike d92 »

I put a rear disc conversion on my car, it required a fair amount of tedious work to get the abs working but is now working fine :) i can help with a kind of guide unless you guys know? :)
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Re: Rear brake conversion?

Post by CJ_Puma1.7 »

Thanks Jacko :grin:
Mike: abs isn't an issue really as it'll be binned anyway to save weight and reduce the amount of stuff that can go tits-up :lol:
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Re: Rear brake conversion?

Post by Mike d92 »

ah fair enough :)
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Re: Rear brake conversion?

Post by aberdarepuma »

Hia mike can u give me a run down please as I wish to get my abs back, thanks if u can help :)
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Re: Rear brake conversion?

Post by Mike d92 »

To get the rear abs working you need to do a few things.

1. you need to get the original abs wires, but these wont fit in the hole that comes with the focus rear hubs as there abs wires are smaller. You need to drill this hole out to make your original wires to fit, you will probably have to shave the bracket that the bolt that holds the sensor in place as it will struggle to fit past.

2. you need to get your original tone rings off your drum brakes (the abs pick up rings) be careful when getting them off as not too bend them. With these tone rings you will have to make them fit onto your new wheel hubs. This involves getting your hubs machines down so the ring will fit and stay tight.

3.Lastly you will need to make some shims that fit behind the tone ring on the hub, as the gap between this and the sensor will be too large at first. i made some shims at 0.6mm 1mm in thickness and played about until it was correct. THE SPACING HAS TO BE 0.6MM OR LESS FOR THE ABS TO WORK CORRECTLY.

I hope this helps :)
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Re: Rear brake conversion?

Post by aberdarepuma »

This is amazing thanks so much!
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Re: Rear brake conversion?

Post by Mike d92 »

Not a problem matey, its not in the best detail, but if you get stuck just give me a message :)
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Re: Rear brake conversion?

Post by Ziggy »

jacko wrote:not really....

the s1400 is a '£50,000' ish kit car that uses mainly standard parts....

the s1600 is a £100,000 plus kit car that uses some very trick custom made parts!!!
Not quite that expensive!

VK14 kit was £20,000

VK16 kit was £35,000

http://www.motorsportsalmanac.com/mastu ... 020124.pdf" onclick="window.open(this.href);return false;
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Rear brake conversion?

Post by alerno »

Ziggy wrote: Thu Jan 03, 2013 2:18 pm
VK14 kit was £20,000

VK16 kit was £35,000

http://www.motorsportsalmanac.com/mastu ... 020124.pdf" onclick="window.open(this.href);return false;
Do you still have the booklets? The link doesn't work anymore
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Rear brake conversion?

Post by joaosoares8492 »

Hi! Do you still have those copies from the s1600 build manual?
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Rear brake conversion?

Post by Trikki Sixx »

Can anyone confirm if the rear disc conversion will fit under the stock fan blade wheels if using the ST170 parts? Thank you
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