i installed a exedy pressure palte and clutch master four point bronze disc on my N/A rx7 but the clutch pedal is really soft. i have no problem engaging any of the gears but it a problem for me. i put a new slave cylinder and adjusted the bolt behind the clutch pedal but got nowhere with it. what do you guy recommend.

 

My car has been like that the whole time i've owned it.. To be honest i actually kinda like it :X

to me it's better than having to do leg exercises to be able to operate the clutch

 

Try bleeding it and see if will change the feel.
If not,then you are stuck with it,and that would tell you that is the way it is supposed to feel.

 

Pedal pressure is a result of the pressure plate. What stage plate is it? If its not strong enough it might not disengage the clutch. Also, are you leaking any fluid or still have the stock rubber slave hose?

 

its a direct replacement stock exedy clutch and yes i have the stock rubber slave hose, is there something that i could do to that hose?

 

You could try replacing the hose with a steel braided version and see if that helps.(about 30 bucks)

 

Also a function of MC size and the hydraulic ratio between the master and slave.

Unless you see the rubber hose bulging, I doubt changing it will make any difference (but it's cheap and easy and won't hurt).
I just installed that very clutch and was surprised at how light the pedal felt.
Haven't gotten to drive it yet but the feel did seem decidedly lighter.
Which I consider to be a good thing.

 

Exceedy pressure plates can be pretty easy on the left foot. If the clutch works, then its fine. If the clutch slips at full noise, then its too soft and you need a heavier one.

 

[QUOTE=nikko13b;11310136]Exceedy pressure plates can be pretty easy on the left foot. If the clutch works, then its fine. If the clutch slips at full noise, then its too soft and you need a heavier one


ok thanx alot guy

 

Yep, chalk up another one for the same situation. I installed the same exedy clutch and PP and the feel is very light. It grips just fine though, so I won't complain.

 

Does the steel braided hose really give it more pressure?

I recently installed a stage 2 clutch in my N/A, yeah it kinda feels softer than usually. I was leaking still, after installing. It was leaking from the Master; changed that out and now no leak.

It works for me.

 

Compared to a good condition rubber hose, no.

 

[QUOTE=clokker;11310346]Compared to a good condition rubber hose, no.[/QUOTE

Ah ok! Well nvm.

 

Braided steel hoses are one of those completely overhyped "racing" accessories that we've all fallen for.
Yes, I have them on all four calipers and the clutch but that was because they are cheaper than OEM rubber, not that they're any better.

You'll read testimonials from folks who've replaced their twenty year old hoses with braided steel and experienced better feel but the fact is, they'd have gotten the same results had they used new oem rubber instead.

When I was roadracing this point was made manifest as I noticed that the factory Honda bikes used the stock rubber hoses (and somewhat surprisingly, the stock brake pads as well).
My rider weaseled a short test ride on one of their backup bikes and wanted our bike converted back to stock.
Which we did, because the rider is always right...even when they're wrong.

 

I bought the cheap saches brand clutch for my t2 and the pedel is very light on it as well, and im running into slippage at high rpm. kinda erks me ive bought cheap *** na clutched and they were holding turbo full power no problem on my older na-t setups.... ohh well the 6 pucks going in now! haha

 

Same here, sachs suck. It spins after 6k....

 

Quoted for truth.

Old rubber will expand/contract with prolonged heat exposure. Over time, they will become brittle and less effective in maintaining constant pressure regardless of what's running through it; the fact that our cars run hotter than a piston-driven engine can definitely attest to that.

Moral of the story: replace your rubber lines!

 

Not sure what the rotary's exhaust temp has to do with the hydraulic hoses but whatevs.

The brake and clutch hoses don't really get brittle, they wear and become prone to expanding.
Unlike most hoses, they go from zero pressure to thousands of PSI intermittently and if the hose expands, that's lost pressure at the caliper piston or throwout arm.

As the astronauts used to say (at least according to Tom Wolfe) "maintain an even strain", i.e., it's better to have a constant level of stress than a none/all situation.
Unfortunately, none/all is exactly what brake and clutch soft lines are asked to do constantly.

 

Thermofluid dynamics. I've had clutch pedals feel solid on cold mornings but once it got hot, the pedal softened up.

But generally yes, I'm in agreement about the burst PSI.

 

Um, wouldn't work that just the opposite?
I find that typically the play you are supposed to leave in the pedal adjustment lessens as the system heats up.

 

By "soften" I mean feel spongey.