Clutch Delay Valve?

[IronSean]

Originally Posted by IronSean

This is completely true. I wasn't sure if I was just crazy, but every time I test drove a BRZ I would be surprised how far I had to push the pedal to get any throttle at all. It was quite the shock coming from my 06 Camry (which is also Drive-by-wire) where you can ease onto the pedal and start getting controlled throttle.

Actually, based on this: http://www.ft86club.com/forums/showp...69&postcount=3

It looks like it's just a dead zone built in by the ECU reset that's supposed to go away over use, and can be sped along by engaging the throttle without the engine on repeatedly.

[Porsche]

Originally Posted by Dave-ROR

Depends on the shift. Sometimes it doesn't feel like it's disengaged (mine has ground gears on slow shifts with the pedal on the floor) and sometimes it feels like there's a delay in engagement. I only notice it in 2-1 and 1-2 shifts though so maybe it's just trans design.

Am I mistaken, then, in thinking that a CDV only affects RELEASING the clutch pedal, the clutch engagement?

What you're saying here suggests that the CDV affects the clutch DISengagement as well, so that a fast shift might "beat" the clutch disengagement, which of course would result in gears grinding.

If so, I don't like the sound of that.

[chrisl]

Originally Posted by SirBrass

@chrisl, do you go for Puma motorsport shoes, or just Puma shoes in general?

I like all the Pumas I've tried for driving, but I do tend to gravitate towards their motorsport-inspired ones moreso than their others. Probably my favorite pair for driving is my pair of Drift Cat 4s, which are (sadly) just about worn out - I might have to buy a new pair before this summer.

[chrisl]

Originally Posted by Porsche

Am I mistaken, then, in thinking that a CDV only affects RELEASING the clutch pedal, the clutch engagement?

What you're saying here suggests that the CDV affects the clutch DISengagement as well, so that a fast shift might "beat" the clutch disengagement, which of course would result in gears grinding.

If so, I don't like the sound of that.

My understanding (and the wiki page on CDVs) is that they are a one way valve that limits the rate of clutch engagement, but it does not affect clutch disengagement in any way. This is definitely true on BMW's clutch delay valves as well, from what I can find. That having been said, I can't find much on whether or not the BRZ/FRS has a CDV, and if so, how it is set up, so it could be set up differently from the standard arrangement. I can't imagine they would delay the disengagement of the clutch though - that would increase clutch and transmission wear for no apparent benefit.

[Porsche]

Originally Posted by chrisl

My understanding (and the wiki page on CDVs) is that they are a one way valve that limits the rate of clutch engagement, but it does not affect clutch disengagement in any way.

Exactly. One-way. That was my understanding, but I never actually examined the system in detail, but just assumed this to be the case.

I can't imagine they would delay the disengagement of the clutch though...

Me either.

But, these days Interstate bridges fall into the Mississippi, so...

God knows what they're up to.

[Porsche]

Originally Posted by chrisl

I like all the Pumas I've tried for driving, but I do tend to gravitate towards their motorsport-inspired ones moreso than their others. Probably my favorite pair for driving is my pair of Drift Cat 4s, which are (sadly) just about worn out - I might have to buy a new pair before this summer.

I'm very pleased with my Piloti shoes.

They have nice details, like rubber reinforcement on the right side of the right shoe for heel-and-toe. They're designed expressly as performance driving shoes, and with sufficient sole padding that one can comfortably walk a good ways in them unlike some dedicated racing shoes which look a bit too lightweight and in which I wouldn't want to walk home from halfway around the Nürburgring.

I bought mine from Pegasus Racing.

[SirBrass]

I'm looking for a good pair of shoes that will look good in the workplace, where normal professional dress is a neat button down untucked short sleeve w/ jeans or dockers.

My loafers are good for that, but a little too loose in the heel for driving with all the time (the back of my ankle on my left foot gets majorly tender).

I also have narrow feet, so I need something that fits, but isn't so foot - conforming that the sole is too narrow (even with the cusco accelerator pedal, my jazz sneakers are too narrow for secure heel-toe purchase).

I'll look at the drift cat 5's. I just need to find a store around here that has them so I can try them on & see if my normal size (8.5 or 9) is appropriate.

Sent from my SCH-I535 using Tapatalk

[Porsche]

Originally Posted by chrisl

I might have to buy a new pair before this summer.

Oh, I forgot to mention this: The Piloti shoes employ a tread pattern that duplicates the old '60s ubiquitous Dunlop road racing tires tread.

Is that cool, or what?

[chrisl]

Originally Posted by SirBrass

I'll look at the drift cat 5's. I just need to find a store around here that has them so I can try them on & see if my normal size (8.5 or 9) is appropriate.

I've found that they tend to run a bit small, so you may need to go up half a size from your normal (depending on what your normal is). It's probably worth trying on to be sure though.

[chrisl]

Originally Posted by Porsche

Oh, I forgot to mention this: The Piloti shoes employ a tread pattern that duplicates the old '60s ubiquitous Dunlop road racing tires tread.

Is that cool, or what?

That is pretty cool. I'll have to look into them

[SirBrass]

Originally Posted by Porsche

Oh, I forgot to mention this: The Piloti shoes employ a tread pattern that duplicates the old '60s ubiquitous Dunlop road racing tires tread.

Is that cool, or what?

Pegasus racing is out of ALL piloti driving shoes in anything like a normal men's size.

[Porsche]

Originally Posted by SirBrass

My loafers are good for that, but a little too loose in the heel for driving with all the time (the back of my ankle on my left foot gets majorly tender).

Properly designed driving shoes employ a rounded, cupped heel intended to comfortably support your foot as it rests on the heel for long periods as it would when driving a car. My Piloti shoes are very comfortable for driving while still being functional and comfortable to run around to stores running my errands. I see fellow photographers wearing them as they traverse the very rough and rocky terrain around the perimeter of race tracks.

They're worth taking a good look at.

I also have narrow feet, so I need something that fits, but isn't so foot - conforming that the sole is too narrow (even with the cusco accelerator pedal, my jazz sneakers are too narrow for secure heel-toe purchase).

My Pilotis are size US 9, and they work perfectly with my S2000 and my BRZ without any pedal modifications. That doesn't assure that they'll work equally well for you, but they're worth a look.

[Porsche]

Originally Posted by SirBrass

Pegasus racing is out of ALL piloti driving shoes in anything like a normal men's size.

Bummer.

Maybe you can find them elsewhere? They used to be priced similarly to the Pumas.

[SirBrass]

I was looking on Piloti's website and I LIKE what I see. Wasn't sure which Pumas I'd want, but the Pilotis look ideal.

These would be great for office, church, and general wear (like my loafers) in terms of style, and they have all the nice benefits of the driving shoe that I want (including that cupped heel): http://piloti.com/product/trazione-3/