Kidnkorner

I had to replace mine and I opted for this over OEM. It feels as though I have a really stiff pressure plate, I may have and not know it (just bought the car). Clutch release is super quick too.

Has anyone put one of these on yet?

thumper64

Sounds like a larger piston in the master cylinder. You lost some mechanical advantage and the inscreased fluid flow would make engagement faster.

Haven't installed one, OEM seems perfect to me.

roycivic92

oem is best

Kidnkorner

Well, it needed to be replaced, and a K series is going in next spring. Is the increased piston size why the pedal feels stiffer?

I do agree OEM is best, but I doubt OEM had K series swap in mind.

rhdej6

i been interested to know if u can really tell the difference between one another

thumper64

Think about it logically. If you increase the bore of the master cylinder, you push more fluid for a given distance. Your slave cylinder only needs a certain amount of fluid to disengage the clutch. With your original master cylinder, lets just say had a bore of 1/2 inch, it may have to travel 3 inches to push enough fluid for the slave cylinder to disengage the clutch. If you increase the bore of the master cylinder it won't have to travel as far to disengage the clutch.

The same principle applies to why it feels harder. The pedal doesn't have to travel as far, but you have to apply more pressure. If your pressure plate takes 50lbs to press in, the load on the original pedal may be 5lbs, but have to travel 6 inches, but you increase the bore of the master cylinder and you have to exert more force, but over a shorter distance.

simenace

yea i wanted to know more info on this master cylinder...search bar here i come

Anon51

i also put the omni quicklutch master in and yes the piston is larger. its 21mm compared to the stock 17? or 19. can't remember. and yes it'll feel like a very stiff pressure plate but you get used to it. with oem i had to clutch down all the way but with the omni in just a about .5 inch and i can shift

Sundown

I understand the physics behind the larger piston, but really unless your oe unit failed, why purchase one of these? The fraction of a second you save with the reduced pedal travel is not worth the price. Money could be spent elsewhere..

_MARS_

_MARS_

True.. when your talking about race Track. seconds count..

it def. not for everyone...

small tap

thumper64

...well, a OEM master cylinder could have the pedal modified to have a shorter travel. Woo for levers!

sirEGhatch

my pedal is pretty stiff from my clutch setup and lets just say i get a omni clutch cylinder would it make the pedal like uber stiff?

Linked

a larger bore master cylinder will make the clutch engagement more stiffer cause your pushing more fluid and will fully engage the clutch in a shorter distance

sirEGhatch

i get that but im guessing if i got one of these it would make my clutch to stiff for daily driving. my 6 puck is already pretty stiff for daily driving

thumper64

It will make it harder. OEM is fine, lots of people use them. If anything, due to having the aftermarket clutch, you should keep the original master cylinder to make it a bit easier to feather the clutch. Depending on the brand, aftermarket clutches are already more difficult to drive.

Put your money into something else.

turb0integra

My boy has a omni master cylinder. its not that hard to push in but it engages like immediatley. theres no way to "slip" the clutch. its either engaged or disengeged

eghatchback970

i have one in my eg with oem exedy and it feels great but it sucks when u drive in town