[Koji_Online]

Purpose:
For members looking to bring their clutch grabbing point closer (or farther) from the floor due to personal preference.

Tools Necessary:
- 12mm open-end wrench
- 14mm open-end wrench

If you go under your steering column you will see the clutch master cylinder coming thru the firewall, just above the accel. pedal (I couldn't find it at first because cars I had before have it right behind the clutch... anyway) double-check you're looking at the right one by pressing the clutch with your left hand & watch the bracket/ cylinder move in & out.

You will see that the master cylinder bolt (w/e) threads into that bracket, & is held in place by a 12mm hex nut; pull out a 12mm open-ended, loosen the nut (too difficult to explain direction based on your orientational awareness; just be sure to note the thread pattern to know how you should turn to loosen it); slightly press clutch pedal with hand to remove tension from bolt, then with right hand screw the threads into the bracket; this will effectively bring your pedal closer to the ground & your grab point as well;

I've messed with different points all week & let me save you R&D; the most comfortable point for intuitive starts/ rolls off the clutch, & heel-toe downshifting; screw in until the clutch pedal sits ever so slightly lower than your brake pedal.

Test setup by getting in drivers seat, turn your car on, & test grab point by putting into first & letting out very slowly with no gas input; take note of when your car ever so slightly moves forward; next run forward a few feet, STOP completely, then immediately shift into reverse; if you get no unusual hesitation or grinding then move back & repeat this (forward, stop reverse) until you feel comfortable with your grab point & make sure you aren't grinding gears.

Tighten the bolt & one final thing, look at the front of your clutch pedal, the first sensor up is for your cruise control & I believe relates to your gear indicator display (if you have it enabled); basically the gear displays only with clutch out, but now that you put your pedal closer to the floor it does not engage the switch on the sensor.
In the same fashion that you loosened the clutch master cylinder nut, use a 14mm to loosen the nut attached to the sensor; it doesn't actually thread into the bracket, so you don't have to turn the sensor in; with the nut loose just slightly push it in to get the sensor switch in contact with the clutch pedal (fully depress the switch onto the pedal); just make sure it isn't pushing force down on your pedal, or this will probably put wear on your clutch ( my suggestion is to pull up on your pedal while you push the sensor into place; then tighten nut.

Now you are all set!; your clutch point is optimally adjusted for all sorts of driving, & your cruise control/ gear indicator still functions =D

*Video of the process; uploaded from forum member @JonnyRocket!
[ame="http://www.youtube.com/watch?v=ScZFQ0j5beY"]BRZ/FR-S Clutch Pedal Adjustment DIY - YouTube[/ame]