Car has 45000mi, Stage 2, Intake, Exhaust, driven her hard. The clutch engages and disengages fine, and drives perfectly fine, unless I give it more than 15-20% throttle. I'm assuming that the clutch itself is gone and I am preparing to install an Exedy Hypersingle w/Flywheel. I'm going to replace the slave cylinder at the same time.

My question is, do I need to replace the Master Cylinder, or should it be fine.

 

you shouldn't NEED to. now, i ruined mine when i was attempting to bleed out the system... so, it's your call.

IMO, it's a hell of a lot easier to get to while the trans is out anyway, so...

 

How would I tell if the Master Cylinder was going, that would be in the engagement and disengagement of the clutch right, cause those feel perfectly fine.

 

wow I just made a thread cause my master cylinder went out. or atleast I thought it did. The actual part of the firewall that holds the master cylinder to it broke, so the master cynlider has no resistance. I too have the exedy hyper single, it's a really stiff clutch. I'm going to reenforce the wall with a washer, whether you replace yours or not, i would consider welding a washer there as well, the metal part of the firewall may not be strong enough.

 

either way when you do a clutch job on these cars, you need to get a new slave cylinder/throwout bearing. its one hydraulic unit, about $150 give or take

 

Yea, i've got the slave/TOB, was $100 shipped

 

does anyone know how hard it is to replace the clutch master? I understand the bleeding will be difficult, but other than that?