heel and toe question
08-06-2008, 02:34 PM
#31
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Here's a video from one of my other post's, the camera slowly started slipping off the mount and ended up pointing at my feet, at around the half way point you can see a real quick h/t double clutch (auto X) should give anyone wondering about a time frame an idea what the motion looks like and how long it takes (w/ a stock 911 shifter). If you didn't know your looking for a 2C you'd be hard pressed to notice otherwise.
http://atthetrack.redtreeconsulting....album=11&pos=7
http://atthetrack.redtreeconsulting....album=11&pos=7
08-06-2008, 03:10 PM
#32
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I used to 1C all the time until I removed and repaired my own (1974) 915 transmission. What I saw inside convinced me to 2C. Since then and like jpinkert, I have found I can get the shifts done faster most of the time because I don't have to wait for the synchros to work. Over time I have developed a 2C
method using a WEVO shifter that is as quick as a 1C. And yes, if I need to shift down more than 1 gear I skip gears and go directly to the gear I need.
method using a WEVO shifter that is as quick as a 1C. And yes, if I need to shift down more than 1 gear I skip gears and go directly to the gear I need.
The other thing you have to keep in mind is the only extra motion is an extra up/down of the clutch, your foot is there anyway and isn't doing any thing else so why not?
08-06-2008, 03:33 PM
#33
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In a 996, sure, agree 100%. But with a 915, I contend that you'll spend more time doing a 1c downshift than a properly executed 2c downshift. I'd rather go through the extra clutch movement, get the downshift done, and move on to all the other things.
08-06-2008, 04:46 PM
#34
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Mtosi
I see what your saying, but even just that extra movement is something else your brain has to do during a time when you want max "processing" power focused on other things. I think it goes to say this is also why during pro races, cars see unbelievable revs and need many rebuilt parts (regardless of standard rebuild schedules) as when it comes down to it, it is still time!
-Drew
08-06-2008, 04:52 PM
#35
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Mtosi
I see what your saying, but even just that extra movement is something else your brain has to do during a time when you want max "processing" power focused on other things. I think it goes to say this is also why during pro races, cars see unbelievable revs and need many rebuilt parts (regardless of standard rebuild schedules) as when it comes down to it, it is still time!
-Drew
08-06-2008, 06:01 PM
#36
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[QUOTE=MTosi;5679533]But If your racing pro you shouldn't be thinking about downshifts (plus now almost all pro cars have sequentials), it should be programmed and subconscious. As mentioned prior it realy doesn't take longer, along with the fact as long as you get your downshifts done during the brake zone you aren't losing time. All this being said I'm not telling anyone to change, just that people who haven't learned yet or drivers of older cars should keep an open mind and give it a try.[/QUOTE
haha, ok, try it and get back to us...I have a feeling you wont want to be doing that unless necessary, but consider me new school.
-Drew
haha, ok, try it and get back to us...I have a feeling you wont want to be doing that unless necessary, but consider me new school.
-Drew
08-06-2008, 09:37 PM
#37
Three Wheelin'
I learned to drive on a Triumph TR-3 with worthless syncros and now have a E-Type Jaguar with also worthless syncros and with both, I always double clutched all downshifts out of necessity.
Last year, one of my students commented to me that I was double clutching my downshifts on my GT-3, and I said "huh?"/totally subconscious and even though I'm now sometimes aware of this,
and there are times when I'm in a hurry and don't, I don't see any downside of double clutching.
On a side note, my last car was a 993 Turbo, with 50,000 miles on it, which represent almost ten years of track miles, and was still on original clutch and tranny.
Last year, one of my students commented to me that I was double clutching my downshifts on my GT-3, and I said "huh?"/totally subconscious and even though I'm now sometimes aware of this,
and there are times when I'm in a hurry and don't, I don't see any downside of double clutching.
On a side note, my last car was a 993 Turbo, with 50,000 miles on it, which represent almost ten years of track miles, and was still on original clutch and tranny.
08-06-2008, 10:33 PM
#38
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Can someone explain double clutching? Any good videos or forums on heel and toe. This is all new to me and would like to understand it.
thank you
thank you
08-09-2008, 09:46 PM
#39
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bueller, anyone ??
08-10-2008, 09:47 AM
#41
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If you refer to one of my previous posts (#29) there is a quick h/t 2c video around the half way point of the run, it's pretty quick so watch carefully.
This is the sequence for say a 4th to 3rd downshift.......
-Clutch in
-move the level into neutral
-Clutch out
-Blip the gas (match revs)
-Clutch in
-Move lever into third
-Clutch out
It sounds complicated, but that takes less than a half second. To simplify the description, basically you shift into neutral, blip, the shift into the gear you want.
This is the sequence for say a 4th to 3rd downshift.......
-Clutch in
-move the level into neutral
-Clutch out
-Blip the gas (match revs)
-Clutch in
-Move lever into third
-Clutch out
It sounds complicated, but that takes less than a half second. To simplify the description, basically you shift into neutral, blip, the shift into the gear you want.
08-10-2008, 05:54 PM
#42
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is it bad to pull out a gear instead of using the clutch to take it out of gear
and Mtosi thank you for the post
and Mtosi thank you for the post
