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whats needed for rear disc converson?

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Old 29-05-2007, 08:30 PM
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stusfesta
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Default whats needed for rear disc converson?

not sure if theres a post somwhere already about how to do this but does anyone know what ya need? cheers
Old 29-05-2007, 09:14 PM
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nellrodd
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Hiya mate,

I just bought mine, and you need, cossie callipers and discs, braided lines, pads, mounting brackets and all the bolts, plus a rs 2000 handbrake cable.

Neil
Old 29-05-2007, 09:23 PM
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Christian and Beccy
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Don't bother IMO.

Drums are best for a road-going RST.
Old 29-05-2007, 09:25 PM
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nellrodd
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Originally Posted by Christian and Beccy
Don't bother IMO.

Drums are best for a road-going RST.
Is the pedal and stopping power not better with the conversion??
Old 29-05-2007, 09:28 PM
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Christian and Beccy
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No. The RST only weighs around 1000kg, Discs on the rear really aren't needed. It will be over-braked and this will need taming down with a Bias-valve, which can't be easily fitted due to the way the RST is piped.

My 350bhp nigh-on 170mph RST has drums on the rear.
Old 29-05-2007, 09:32 PM
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nellrodd
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Originally Posted by Christian and Beccy
No. The RST only weighs around 1000kg, Discs on the rear really aren't needed. It will be over-braked and this will need taming down with a Bias-valve, which can't be easily fitted due to the way the RST is piped.

My 350bhp nigh-on 170mph RST has drums on the rear.
So would i be best get rid of the set up as its not fitted yet, but was away to, sounds like alot of hassle with this valve. So standard drums and shoes are the way forward!!!
Old 29-05-2007, 09:33 PM
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Barry R
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i have heard some horror storys about rear discs like they lock up and you spin out stuff like that
Old 29-05-2007, 09:50 PM
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stusfesta
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hmm may stick with drums then, im runnin 200bhp but have got cossie fronts so ile stick with them
Old 29-05-2007, 09:50 PM
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Christian and Beccy
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Yes that's true. I'm not suggesting that everyone should take their rear discs off and refit drums, but I do know people who are having issue's with rear discs. My drums have required little maintenance over the 8 years that I have owned my car and they perform superbly on the road/runway/track.
Old 29-05-2007, 09:51 PM
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djsri
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Originally Posted by Christian and Beccy
No. The RST only weighs around 1000kg, Discs on the rear really aren't needed. It will be over-braked and this will need taming down with a Bias-valve, which can't be easily fitted due to the way the RST is piped.

My 350bhp nigh-on 170mph RST has drums on the rear.
I've just brought a Bias-valve m8, what do you mean by this? because the way the pipes run under the car then getting feed into car then back out again?
Old 29-05-2007, 09:57 PM
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The car is effectively piped diagonally, therefore you would need 2 bias valves, then you will run into allsorts of safety related problems by potentially having different pressures corner-to-corner.
Old 29-05-2007, 10:04 PM
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djsri
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hmm i was going to do t-piece into valve then out of valve run single pipe till i get to the back then t-piece again off to discs? you dont think this is a good idea bud?
Old 29-05-2007, 11:01 PM
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my uncles rs is over braked at the rear and only has drumbs, i think there to twitchy at the back any way
Old 30-05-2007, 07:01 AM
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Badman38
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like christian said to get the best out of a rear disc conversion the whole braking system would have to be redesigned, i use to run 300mm discs form and rear, braking hard makes the back very Twitchy karl bromley at zoo motorsport made a new braking system for me Incorporating a brake biased valve two master cylinders Rerouted brake pipes etc...
but the best braking system i had was wilwood four pots and 300mm discs with standard rear brakes....
Old 30-05-2007, 07:36 AM
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I'd never even think about removing the drums. I really enjoy the strong handbrake. Very easy to do swing the back end around and do a U-Turn.

Wouldn't be the same with discs... Maybe if you use a hydraulic handbrake...
Old 30-05-2007, 12:17 PM
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genuinly think that you just dont need discs other han for looks or the most extreme of track cars,

escorts are very light over the rear, and as already said, the drumbs are more than up to it
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