Clutch all the way when shifting?
#1
Three Wheelin'
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Clutch all the way when shifting?
I was watching a p-car instuctional track video and was amazed how fast the driver was shifting -- As a new 993 owner, I'm curious if you guys depress the clutch all the way down when shifting when the car is in motion. Given the high clutch on a 993, I can't shift super-fast.
For example if the clutch engages at 50% of the way up from the floor (when stationary), do you only depress to this point when shifting in motion?
For example if the clutch engages at 50% of the way up from the floor (when stationary), do you only depress to this point when shifting in motion?
#2
Three Wheelin'
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Hi Rob,
I rarely depress the clutch all the way down when I'm shifting. Personally I don't think it's necessary to depress the clutch all the way down during shifting.
Hope this helps,
pin
I rarely depress the clutch all the way down when I'm shifting. Personally I don't think it's necessary to depress the clutch all the way down during shifting.
Hope this helps,
pin
#3
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It's probably better to be smooth than fast.
But to answer your question, I'll turn to Hurley Haywood:
"The sweet spot in the clutch pedal is where it engages on the way up... press the clutch pedal to just past the sweet spot. You don't have to go all the way to the floor."
Road Atlanta PDE, November 2001
But to answer your question, I'll turn to Hurley Haywood:
"The sweet spot in the clutch pedal is where it engages on the way up... press the clutch pedal to just past the sweet spot. You don't have to go all the way to the floor."
Road Atlanta PDE, November 2001
#4
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Thanks guys - as usual, you are all great in helping the enthusiatic novices.
Question: Given the above, why is the clutch designed so that the first 60% of movement from the floor doesnt do anything??? For example, the clutch in the 996, or a BMW engages much lower to the floor.
Question: Given the above, why is the clutch designed so that the first 60% of movement from the floor doesnt do anything??? For example, the clutch in the 996, or a BMW engages much lower to the floor.
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Steve W,
Speaking of this topic. I have a race clutch and flywheel and you only need to put the clutch in an inch or so and the rest of the travel is wasted. If you put the clutch in too far the revs don't match too well (on upshifts) because the rpms drop so fast with the RS flywheel and short gears. Found this out on the back straight at Mid Ohio in the rain
I wanted to add some sort of clutch stop to prevent the pedal from hitting the floorboard. Is there a product out there for this or do you have anyone that has fabricated such a thing? I looked at a factory GT2 and it was already built into the floorboard (those germans think of everything) so there wasn't anything I could copy. Figured you might have run into this problem once or twice.
Greg
Speaking of this topic. I have a race clutch and flywheel and you only need to put the clutch in an inch or so and the rest of the travel is wasted. If you put the clutch in too far the revs don't match too well (on upshifts) because the rpms drop so fast with the RS flywheel and short gears. Found this out on the back straight at Mid Ohio in the rain
I wanted to add some sort of clutch stop to prevent the pedal from hitting the floorboard. Is there a product out there for this or do you have anyone that has fabricated such a thing? I looked at a factory GT2 and it was already built into the floorboard (those germans think of everything) so there wasn't anything I could copy. Figured you might have run into this problem once or twice.
Greg
#6
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Hmm...
My clutch engages about an inch off the floor (I've got the lightweight flywheel & RS clutch). So I always go all the way to the floor with the pedal. Still, I don't think it slows me down any. I get the shifts done pretty quickly...
My clutch engages about an inch off the floor (I've got the lightweight flywheel & RS clutch). So I always go all the way to the floor with the pedal. Still, I don't think it slows me down any. I get the shifts done pretty quickly...
#7
Originally posted by DJ:
<STRONG>Hmm...
My clutch engages about an inch off the floor (I've got the lightweight flywheel & RS clutch). So I always go all the way to the floor with the pedal. Still, I don't think it slows me down any. I get the shifts done pretty quickly...</STRONG>
<STRONG>Hmm...
My clutch engages about an inch off the floor (I've got the lightweight flywheel & RS clutch). So I always go all the way to the floor with the pedal. Still, I don't think it slows me down any. I get the shifts done pretty quickly...</STRONG>
I just bought a 993tt and the clutch (standard as far as I'm aware) bites around 60-70pct the way up in it's travel from the floor. Is this normal? Anyway I'd prefer if it engaged a bit lower.
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#9
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My clutch engages about 80% of the way up. Thought it was wearing out prematurely, but guess not. Now if the clutch chatter would just go away...........it is particularly bad in reverse.
#10
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Originally posted by DJ:
<STRONG>My clutch engages about an inch off the floor (I've got the lightweight flywheel & RS clutch). So I always go all the way to the floor with the pedal. Still, I don't think it slows me down any. I get the shifts done pretty quickly...</STRONG>
<STRONG>My clutch engages about an inch off the floor (I've got the lightweight flywheel & RS clutch). So I always go all the way to the floor with the pedal. Still, I don't think it slows me down any. I get the shifts done pretty quickly...</STRONG>
E. J.
#11
Drifting
don't quote me on this, I'm no expert..
but my understanding is, at least when double clutching.. You don't even need the clutch to get out of gear. I know were talking about the full exchange. But if you know your car and it's syncro's you can come out of gear with no clutch at all.
I know this isn't exactly what were talking about and I don't know the specifics, but I think when you lift you can easily pop out of gear sans clutch.
I think that's what some race car drivers do for speedier downshifting. But again, don't quote me.. I just remember reading something to that effect in the book, GOING FASTER..
good luck.
but my understanding is, at least when double clutching.. You don't even need the clutch to get out of gear. I know were talking about the full exchange. But if you know your car and it's syncro's you can come out of gear with no clutch at all.
I know this isn't exactly what were talking about and I don't know the specifics, but I think when you lift you can easily pop out of gear sans clutch.
I think that's what some race car drivers do for speedier downshifting. But again, don't quote me.. I just remember reading something to that effect in the book, GOING FASTER..
good luck.
#12
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Originally posted by B-Line:
<STRONG>don't quote me on this, I'm no expert..
but my understanding is, at least when double clutching.. You don't even need the clutch to get out of gear. I know were talking about the full exchange. But if you know your car and it's syncro's you can come out of gear with no clutch at all.
I know this isn't exactly what were talking about and I don't know the specifics, but I think when you lift you can easily pop out of gear sans clutch.
I think that's what some race car drivers do for speedier downshifting. But again, don't quote me.. I just remember reading something to that effect in the book, GOING FASTER..
good luck.</STRONG>
<STRONG>don't quote me on this, I'm no expert..
but my understanding is, at least when double clutching.. You don't even need the clutch to get out of gear. I know were talking about the full exchange. But if you know your car and it's syncro's you can come out of gear with no clutch at all.
I know this isn't exactly what were talking about and I don't know the specifics, but I think when you lift you can easily pop out of gear sans clutch.
I think that's what some race car drivers do for speedier downshifting. But again, don't quote me.. I just remember reading something to that effect in the book, GOING FASTER..
good luck.</STRONG>
#13
Originally posted by B-Line:
<STRONG>at least when double clutching.. You don't even need the clutch to get out of gear.
I think that's what some race car drivers do for speedier downshifting. But again, don't quote me.. I just remember reading something to that effect in the book, GOING FASTER..
good luck.</STRONG>
<STRONG>at least when double clutching.. You don't even need the clutch to get out of gear.
I think that's what some race car drivers do for speedier downshifting. But again, don't quote me.. I just remember reading something to that effect in the book, GOING FASTER..
good luck.</STRONG>
If you can't think of what to get your mechanic for Christmas just give him cash. If you do this regularly with your 993 gearbox, you're going to be giving him some cash anyway...
#14
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EJ, I am curious.
With 102,000mi you can be my higher milage expert.
How 'notchy' are your shifts from 1st to 2nd and 2nd to 3rd? Does the shifting feel level out or does it continue to slowly degrade?
TIA
With 102,000mi you can be my higher milage expert.
How 'notchy' are your shifts from 1st to 2nd and 2nd to 3rd? Does the shifting feel level out or does it continue to slowly degrade?
TIA
#15
Originally posted by E. J.:
<STRONG>
Something else I have in common with DJ - although my example should be thrown out since I have 102000 miles on the original clutch.
E. J.</STRONG>
<STRONG>
Something else I have in common with DJ - although my example should be thrown out since I have 102000 miles on the original clutch.
E. J.</STRONG>