CLUTCH LAG
 

Let me be clear on this. This is my first manual transmission vehicle, so it's possible this is normal.

Over the year that I have owned and used my 2013 BRZ, I have commented that sometimes my clutch "lags" and therefore my shift knob "grinds" against the "wall" of the gear I am trying to move on to. Before, it usually occurred when I was paying much more attention to the road than to what my feet and hands are actually doing.

Well last night I was trying out my new Mini 0806 dashcam around some really nice, pretty switchbacks in my area. I was also practicing my heel-toe, something that I've become surprisingly good at after only trying for the first time last week, so I was paying loads of attention to what my feet and hands were doing, specifically in what order they were performing tasks.
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Every once in a while, there is definitely some lag from when I press on the clutch pedal, to when I can actually change gears. And I had the clutch pressed in about half way, more than needed for a gear-change.

Is the clutch "hydraulic"? Would that explain it? Or is it part of a larger issue?

Edit: Would "bleeding out" the clutch possibly erase this issue that occurs every so often?

You are only pressing the clutch pedal halfway down???

If so then that's your problem right there.

If you grind with a fully depressed clutch, then you have an actual problem.

So you're saying I should press it all the way to the floor? I've had many people tell me that's bad for a clutch, especially when the clutch catches very high up, like in the BRZ.

Anyways, I only started pressing the clutch pedal down about half way about 3 weeks ago, when someone convinced me to stop pressing it down all the way. Since then, my shifts have become much smoother.

But the issue still stands that this "rare" incident still occurred over the past year when I did first press the clutch all the way down.

Maybe I'm creating false issues in my mind. I don't know...

Simple fix. Actually push the clutch all the way to the floor BEFORE you take it out of gear AND before you put it into another gear.

What you are doing is grinding gears because your clutch isnt fully disengaging...

No the clutch is meant to be pushed all the way to the floor.

The only time it is bad is if you are holding it down for an extended period of time. Like sitting at a stop light with the car in 1st gear waiting for the light to change. That will cause excess and unnecessary wear and tear on the throw out bearing and fork over time.

^^Agreed. If you are experiencing it rarely then chances are if you are driving more spiritedly or are doing things by muscle memory and aren't fully aware of your motions, then it is highly likely that you may be just barely missing the full disengagement point by purposefully only pushing the pedal just enough. Like it's already been said, fully press the clutch pedal when changing gears at any time.

whoever told you to not push your clutch all the way down when shifting... don't listen to them anymore. it's an extremely bad habit, same with resting your foot on the clutch pedal when not using it.

however, if you're looking for the quickest shifts and don't mind the wear and tear on your transmission, then that's when you MIGHT do it.

also I suggest you adjust your clutch pedal to a grab point you're comfortable at. it will make driving a lot easier. you can find a write up on the forums.

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This.

Plenty of information on the forums regarding making the feel of the clutch much better without having to half clutch it....

ALWAYS push it in all the way. (that's what she said)
and call that someone an idiot and unfriend him.

Do I press the clutch in fully for aggressive shifts?no
Would I ever suggest someone not push it all the way? no, but with my current car I'm not worried about grinding gears or blowing a transmission.
Whoever told you to not press the clutch fully in a regular driving situation is an idiot.

Ok problem solved we can close this now :)

Don't close just in case someone elsehas an idiot friend who tells them the same thing.

If you haven't yet done so, this thread will tell you how to adjust your clutch pedal:

http://www.ft86club.com/forums/showthread.php?t=8040

If properly adjusted, the clutch pedal need not go all the way to the floor; it merely needs to go to the point where the clutch is completely disengaged. To be absolutely safe, you can press it to the floor, but (for example) it is not necessary in my car to do this.