EVO Master Cylinder

[Spyder4g64]

can the evo master cylinder be used on a dsm for extra pressure, bc im sure theyve got it for those 4 piston brmbos... hit me back

 

[wret]

Actually a larger cylinder would reduce pressure to the brakes and shorten the pedal stroke due to the increase in volume. Are you sure that's what you want?

 

[SlowSpyder]

Actually a larger cylinder would reduce pressure to the brakes and shorten the pedal stroke due to the increase in volume. Are you sure that's what you want?

wouldnt a larger piston increase overall hydraulic pressure applied to the pistons in the calipers?

 

[ginsu417]

wouldnt a larger piston increase overall hydraulic pressure applied to the pistons in the calipers?

This is correct. Larger master = more hydraulic pressure. Larger slave(s) = more hydraulic pressure required to actuate with the same force.

 

[wret]

Um, no. The force comes from your the motion of your foot (supplemented by a vacuum booster). The brake master cylinder converts the motion of the pedal into hydraulic displacement and pressure when the pads encounter the resistance of the braking surface. The amount of pressure transmitted to the wheel cylinders is inversely proportional to to surface area of the master cylinder.

All other variables being equal, a system with a larger master cylinder will generate less force to the braking surfaces with the same amount of pedal force, but with a shortened stroke.

 

[jtmcinder]

Larger master = more hydraulic pressure. Larger slave(s) = more hydraulic pressure required to actuate with the same force.

Exactly backwards, on both ends.

- Jtoby

 

[Todd TCE]

Seems some folks like to speak up when they should listen instead.

The size of the MC will have little to do with the fact that the car as single, twin, four or six pot calipers. Total piston area may well be the same in all cases in fact.

And for those who don't konw; a single or twin pot vs. a six can have the same area regardless of being a slider vs. opposed design. Meaning for calculations you take only half of the six pot- or one side of it. This because the slide pulls in the outboard anyhow.

Don't know the Evo size but I'll wager it's not any larger than the 1.0" on some of the other DSM vehicles. Bigger is nice for feel and stroke but will require more 'leg'.

In fact as a side note, if the rotors are larger on the Evo then the total piston area may be LESS than you have on the Eclipse. You won't need as much clamping force on the larger rotor.

 

[Spyder4g64]

thnx for your arguments...all that crap means nothing to me. Will the MC help me or no? i swaped my rear drums for discs so i think i need extra pressure!

 

[Todd TCE]

thnx for your arguments...all that crap means nothing to me. !

Then maybe you shouldn't undertake projects you know nothing about.

 

[mach1one]

He gives you the answer you want, but you don't understand. I don't think you should be messing w/ your brakes.

 

[cait sith]

thnx for your arguments...all that crap means nothing to me. Will the MC help me or no? i swaped my rear drums for discs so i think i need extra pressure!

No. You don't.