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Home > Help Needed / General Tech Chat > adding a brake servo? worth it?

Welsh Turbo

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my current setup is the older type with no brake servo, just a good old master cylinder....

is it worth upgrading and fitting the later type system that uses a servo? cuz i used 2 get scared running the 998 never mind the new engine although it only had the solid 8.4 disks on front and drums on back!

what would be the best route to take?

Edited by Welsh Turbo on 18th Oct, 2004.


Mike

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Post Whore

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ok, i'm non-turbo (at the mo:)), but i use the usual 4pot vented setup and its pretty bloody good for me.



AlexF2003

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All a servo does is reduce the physical effort required to stop the car... it does not improve your braking!

So if you want a lighter pedal go for it (most do) but you need to start matching caliper piston sizes and master cylinder sizes carefully without a servo.

Alex

AlexF


Kean

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South Staffs

Most people with turbos probably remove the servo to make more room for the important stuff..... you know things that make you faster not slower *happy*... joking aside, a well maintained non servo system is just as good as a servo if your leg is up to it

I prefer the feel of non assited brakes anyway


iain
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Sold the turbo and seeing what the C20XE can do!

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Yep i prefer non servo too *happy*

just on cooper s brakes me *smiley* have had them on the last few cars and usually been fine when in good nick but once they neglected they detriorate very quickly.


Welsh Turbo

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cheers guys, looks like ill save some cash and room and stick with the good old setup then. its a new master cylinder on there any way

will i need to make any changes to it to fit metro turbo disks and calipers?


Kean

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if your runnin on 12/13 inch wheels not really as long as your master cylinder is up to it
Some of them can't displace enough fluid to move all the pistons....
The later tandem type cylinder has a bigger bore i think

Edited by Kean on 18th Oct, 2004.


Tom Fenton
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On 18/10/2004 20:02:54 t2clubby said:


Some of them can't displace enough fluid to move all the pistons....
The later tandem type cylinder has a bigger bore i think



Not sure if you got a bit mixed up there?
The different bore sizes are used to give a different line pressure, as it is this that modifies the effort you need to put into the pedal. The amount of fluid displaced doesn't really affect anything, apart from when you have fitted new pads, and are pumping the pedal to push the pistons back out to contact the new pads.

As the bore of the cylinder goes down, the line pressure increases, and so you have to push less-hard for the same braking effort.
Vice-versa, if the bore of the cylinder goes up, the line pressure goes down, so you need to push harder to get the same braking effort.


On 29th Nov, 2016 madmk1 said:


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


Like fuel 😂😂


Welsh Turbo

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ok. am i right in thinking you need a new set of braided hoses to go to the calipers?


iain
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Sold the turbo and seeing what the C20XE can do!

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yep. i can do these for a good price *smiley*


Welsh Turbo

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when i find some disks and calipers then ill get in touch!

also need an engine.... fuel tanks...... the list is endless!


jukka

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Forgotten more than most ever know

Latest spec tandem cylinder with integral servo does have a bigger bore, 20,8 mm I believe. I have this setup with 4-pots and it is great. Well guys you need to consider that I am almost 40 and loosing the body strength bit by bit. Besides, the wife also drives the car so it is better for her.


turbodave16v
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On 19/10/2004 10:54:00 jukka said:

Latest spec tandem cylinder with integral servo does have a bigger bore, 20,8 mm I believe.


Learn something new every day! *happy*

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


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