Brake Upgrade

Yes, and since we are in the CE section, I thought it was obvious ? ;)

Also where is the rear brake residual valve located in the CE ? Is it in-built in the M/Cylinder ?
 
selaga said:
Yes, and since we are in the CE section, I thought it was obvious ? ;)
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M21, GTI, CM5A GSR, CD5A GSR, Evo1-3 from what Ive learnt. however ive heard a few magna ones fit, also heard of a older model commodore MC and brakes fitting.
 
Alternatetively you could try out a dual stage brake booster and factory master cylinder. Not sure if all lancer MC's are 7/8 of an inch or not, but this is what I'm trying tomorrow. 7/8 master cyl, EVO 5 dual booster. Only because my wet braking is dicey due to the evo 5 1 1/16 master cyl. There should be a bunch of dual stage boosters floating around on magna's etc. if this works for me tomorrow (still running 1pot fronts) then it could also be an option. Just putting it out there, I'll report back how it works out for me.

The brake booster uses vacuum from the engine to multiply the force that your foot applies to the master cylinder.
 
Did dual boosters come on all evo's? Are you swapping out your evo cylinder because it was too strong?
 
d3x said:
Did dual boosters come on all evo's? Are you swapping out your evo cylinder because it was too strong?
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256mm frt brakes
260mm rear brakes
braided lines
dual booster
1 1/16 master cylinder
bendix ultimates

this equals a very very firm pedal with bugger all movement, brakes work well. But a little too well in the wet... tap slide tap slide is not fun especially when it's even braking uphill.
 
rambo said:
Why did you get bigger rear brakes than the front ones???
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For better braking when driving in reverse!

nah just kidding, thats how they come, they are alot thinner and arnet ventilated tho.
 
rambo said:
Why did you get bigger rear brakes than the front ones???
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because big brakes no matter what look cool :p
that, and 4mm is hard to spot by 'glancing' at them
 
rears only come in 260mm rambo

evo 1-6 all have 260/70 rears same with fto rears and m21 rears all 260/70mm, thats just how they come
they only handle 30% of the braking and are a solid disc rather than the fronts which are ventilated and handle 70% of the cars braking
 
rambo said:
Why did you get bigger rear brakes than the front ones???
Click to expand...

RESEARCH FAIL!!!

Yes as others have just said the rear brakes are in fact 260mm, if you look closer at the size of the caliper it is a lot smaller than the front caliper as braking does rely on surface area, as well as other factors. So larger disc doesn't mean that the braking force is larger.
 
matty said:
rambo said:
Why did you get bigger rear brakes than the front ones???
Click to expand...

RESEARCH FAIL!!!

Yes as others have just said the rear brakes are in fact 260mm, if you look closer at the size of the caliper it is a lot smaller than the front caliper as braking does rely on surface area, as well as other factors. So larger disc doesn't mean that the braking force is larger.
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This ^^

Friction is independant of surface area, therfore it doesnt directly effect the braking force, the benefit of surface area is that it allows better heat disapation and therefore maintains a higher coeffcient of friction.


The braking torque (rotary force) can be calculated by the friction force of the pads multiplied by the radius of the rotor.

The friction force of the pads can be calculated by the coefficient of sliding friction between the pad and the rotor multiplied by the force of the piston pushing the pad onto the rotor.

The force of the piston can be calcuated by the pressure in the brake lines multiplied by the surface area of the piston.

The pressure in the brake line can be calculated by the force of the brake master cylinder piston multiplied by the surface area of the master cylinder piston.


The moral of this lesson is

You can increase your net braking torque by;

  • Pushing on the pedal harder
  • Decreasing your master cylinder piston size (not advised as you loose fluid flow which inturn doesnt move the pads as far which decreases the force of the pads, unless you are pumping the brakes)
  • Increasing your piston surface area in the caliper
  • Increasing the coefficient of friction of the pads/rotors
  • Increasing your rotor size
 
I pulled following off the Satria GTI to go into Mirage CE....Brake servo, master cylinder, distribution block/valve, F discs/calipers, R suspension complete and handbrake cable.

Will report how well it all works. since it is all factory matched I don't expect any problems. Anyone done this conversion ?

Ideally would like to go to Evo 2 pots on front with a 1" b.m.c. as a stage II upgrade. Main reason for going to rear disc brakes is the ease of replacing pads and also to a smaller degree the looks, nothing worse than a nice open design wheel and have this dirty rusty old drum behind it.
 
are satira gti's not 5stud? or 4x114.3?
hope u have different rims ;)
 
for serious tron.... i swear the gti's werent the right stud pattern otherwise i have a heaps at my wreckers if anyone needs brake upgrades
 
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