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Home > Help Needed / General Tech Chat > Wheel cylinder choice

T3Tone

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Sunny suffolk

15th Jun, 2005 at 04:53:54pm

What bore rear wheel cylinders will give the least amount of braking??? No matter what i try my rear wheels lock up under hard braking. I have 7.5"discs up front and all my brake lines and hoses are new so theres no problem of a blocked/kinked brake line not allowing fluid to return freely.

So is it bigger bore cylinders or smaller to reduce the braking force at the rear??? I know there are at least 5 different bore sizes to choose from so ive got quite a selection.

Oh and i adjust up the rears so the shoes are just skimming on the drums and the handbrake adjusted so 4 clicks locks the wheels, so these should'nt be causing the problem.

Many thanks,

T3tone.

-MINI CLUBMAN 1380 TURBO-

Jimster
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455bhp per ton
12 sec 1/4 mile road legal mini

Sunny Bridgend, South Wales

15th Jun, 2005 at 05:28:37pm

I have a brake bias valve installed, it's great, you can adjust the breaking for the MOT, everyday driving and the track, all without getting out of your seat. Highly recomended

Team Racing

On 15th May, 2009 TurboDave said:
I think the welsh one has it right!


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run a 1/4 in one!!

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T3Tone

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Sunny suffolk

15th Jun, 2005 at 05:35:00pm

cheers mate, could this be fitted with a diagonally split system??

-MINI CLUBMAN 1380 TURBO-

turbodave16v
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SouthPark, Colorado

15th Jun, 2005 at 05:38:05pm

WTF are you still running one of them systems for? Seriously - buy a pipe kit from the specialists and re-do the lot like it should be done - Then you can also run a rear bias valve or the smaller cylinders...

ps - you need a smaller bore slave cylinder to reduce the pressure...

On 17th Nov, 2014 Tom Fenton said:
Sorry to say My Herpes are no better


Ready to feel Ancient ??? This is 26 years old as of 2022 https://youtu.be/YQQokcoOzeY



turbodave16v
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SouthPark, Colorado

15th Jun, 2005 at 05:40:18pm

http://www.gr8website2.com/calverst/articl..._bias_valve.htm


http://www.gr8website2.com/calverst/articl..._adjustment.htm

On 17th Nov, 2014 Tom Fenton said:
Sorry to say My Herpes are no better


Ready to feel Ancient ??? This is 26 years old as of 2022 https://youtu.be/YQQokcoOzeY



T3Tone

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Sunny suffolk

15th Jun, 2005 at 05:47:34pm

Did'nt realise there where any real gains from changing to f/r split system mate!!!

-MINI CLUBMAN 1380 TURBO-

Tom Fenton
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Rotherham South Yorkshire

15th Jun, 2005 at 06:56:43pm

Agree with Dave, junk the diagonal b*llocks and pipe it up so it is a front to rear split. Then as Jim says get an in-line brake pressure reducing valve and you can increase and decrease front to rear bias to your liking. I used to add a bit more rear bias when "having a go" round some lanes, or I used to remove some rear bias when it was bloody slippy out and about.


On 29th Nov, 2016 madmk1 said:

On 28th Nov, 2016 Rob Gavin said:
 I refuse to pay for anything else


Like fuel 😂😂

T3Tone

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Sunny suffolk

15th Jun, 2005 at 09:53:43pm

Many thanks for advise gents:) swopping to a f/r split system it is.

-MINI CLUBMAN 1380 TURBO-
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