need to know, what is double clutching and heel-and-toe downshifting.
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From: Gainesville, FL
Re: need to know, what is double clutching and heel-and-toe downshifting. (jetpilot)
The Skip Barber program will also explain these techniques to you. It's also in their book. Or here:
https://honda-tech.com/zerosearch
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From: TX, US
Re: need to know, what is double clutching and heel-and-toe downshifting. (jetpilot)
heel-and-toe is a technique that allows you to change into a lower gear under braking w/o upsetting the balance of the car.
for example, you're heading into a corner in 4th gear, and you need to be in a lower gear to accelerate out of the corner. So you place your toe on the brakes, while applying the brakes, you press in the clutch and then you move your heel over and blip the gas (known as rev-matching -- matches the engine speed to transmission speed). You then select the lower / proper gear, and then let the clutch out. If done correctly, the chassis won't shake at all.
Double clutching, is really only beneficial to older non-syncro cars, and cars that are difficult to get into 1st gear. In order, it's clutch in, gear out, clutch-out, rev-match, clutch-in, gear in, clutch out. Which of course, can be combined w/ a heel-n-toe.
David
for example, you're heading into a corner in 4th gear, and you need to be in a lower gear to accelerate out of the corner. So you place your toe on the brakes, while applying the brakes, you press in the clutch and then you move your heel over and blip the gas (known as rev-matching -- matches the engine speed to transmission speed). You then select the lower / proper gear, and then let the clutch out. If done correctly, the chassis won't shake at all.
Double clutching, is really only beneficial to older non-syncro cars, and cars that are difficult to get into 1st gear. In order, it's clutch in, gear out, clutch-out, rev-match, clutch-in, gear in, clutch out. Which of course, can be combined w/ a heel-n-toe.
David
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From: RIP Craig Jones
Re: need to know, what is double clutching and heel-and-toe downshifting. (Limited S.L.I.P.)
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From: I started it
Re: need to know, what is double clutching and heel-and-toe downshifting. (jetpilot)
Something I recommend...practice it on the street. ALWAYS. IMHO, in order for it to be a useful technique in your driving, it has to be a habit, second nature kind of thing.
It's also more difficult to get "right" on the street as you have to be more precise with how much gas you blip in. Once you've got it there, you've got it anywhere.
One more thing - wait until right at turn-in to do it. If you do it too early, you are at risk of over-revving the motor. Which is bad.
It's also more difficult to get "right" on the street as you have to be more precise with how much gas you blip in. Once you've got it there, you've got it anywhere.
One more thing - wait until right at turn-in to do it. If you do it too early, you are at risk of over-revving the motor. Which is bad.
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From: Kings Mt., NC
Re: need to know, what is double clutching and heel-and-toe downshifting. (krshultz)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">Something I recommend...practice it on the street. ALWAYS. IMHO, in order for it to be a useful technique in your driving, it has to be a habit, second nature kind of thing.</TD></TR></TABLE>
For the last 3-4 years, I have been unable to drive either of my cars on the street without heel-toe downshifts. It just feels wrong if I don't do it. It's so 2nd nature now that most of the time I don't realize I'm doing it. I just do it. I even do it pulling into parking *spots*.
Matt<---needs help....
For the last 3-4 years, I have been unable to drive either of my cars on the street without heel-toe downshifts. It just feels wrong if I don't do it. It's so 2nd nature now that most of the time I don't realize I'm doing it. I just do it. I even do it pulling into parking *spots*.
Matt<---needs help....
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From: Portland, OR
Re: need to know, what is double clutching and heel-and-toe downshifting. (krshultz)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by krshultz »</TD></TR><TR><TD CLASS="quote">One more thing - wait until right at turn-in to do it. If you do it too early, you are at risk of over-revving the motor. Which is bad.</TD></TR></TABLE>
Good point here. Getting the timing perfect so you downshift as late as possible without upsetting the car for turn-in (even a "perfect" downshift will upset the car some) takes a while to get down. But, your drivetrain will like you for it too.
Good point here. Getting the timing perfect so you downshift as late as possible without upsetting the car for turn-in (even a "perfect" downshift will upset the car some) takes a while to get down. But, your drivetrain will like you for it too.
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From: Darkside,, Moon
Re: need to know, what is double clutching and heel-and-toe downshifting. (MaddMatt)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MaddMatt »</TD></TR><TR><TD CLASS="quote">
It's so 2nd nature now that most of the time I don't realize I'm doing it.</TD></TR></TABLE>
I cracked myself up this weekend when I was in an arcade and was playing F355 Challenge in simulator mode. The game has a clutch and a 6 speed, and in the first braking zone I found myself trying to heel/toe downshift for the corner without even thinking about it. Needsless to say the pedals aren't really setup for it, but I couldn't help myself. Practice and practice until it becomes second nature.
It's so 2nd nature now that most of the time I don't realize I'm doing it.</TD></TR></TABLE>
I cracked myself up this weekend when I was in an arcade and was playing F355 Challenge in simulator mode. The game has a clutch and a 6 speed, and in the first braking zone I found myself trying to heel/toe downshift for the corner without even thinking about it. Needsless to say the pedals aren't really setup for it, but I couldn't help myself. Practice and practice until it becomes second nature.
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From: Washington, DC, US
Re: need to know, what is double clutching and heel-and-toe downshifting. (PilotSi)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PilotSi »</TD></TR><TR><TD CLASS="quote">heel-and-toe is a technique that allows you to change into a lower gear under braking w/o upsetting the balance of the car.
for example, you're heading into a corner in 4th gear, and you need to be in a lower gear to accelerate out of the corner. So you place your toe on the brakes, while applying the brakes, you press in the clutch and then you move your heel over and blip the gas (known as rev-matching -- matches the engine speed to transmission speed). You then select the lower / proper gear, and then let the clutch out. If done correctly, the chassis won't shake at all.
Double clutching, is really only beneficial to older non-syncro cars, and cars that are difficult to get into 1st gear. In order, it's clutch in, gear out, clutch-out, rev-match, clutch-in, gear in, clutch out. Which of course, can be combined w/ a heel-n-toe.
David</TD></TR></TABLE>
Perfect description but its really more like "left side of foot for brake, right side for gas" I bolted on some cheap aluminum racing pedals and it made a world of diference. Now there is only like a 1/4" gap between the brake pedal and the gas pedal and it all makes sense to me.
I still haven't learned to do it well though
Mike
for example, you're heading into a corner in 4th gear, and you need to be in a lower gear to accelerate out of the corner. So you place your toe on the brakes, while applying the brakes, you press in the clutch and then you move your heel over and blip the gas (known as rev-matching -- matches the engine speed to transmission speed). You then select the lower / proper gear, and then let the clutch out. If done correctly, the chassis won't shake at all.
Double clutching, is really only beneficial to older non-syncro cars, and cars that are difficult to get into 1st gear. In order, it's clutch in, gear out, clutch-out, rev-match, clutch-in, gear in, clutch out. Which of course, can be combined w/ a heel-n-toe.
David</TD></TR></TABLE>
Perfect description but its really more like "left side of foot for brake, right side for gas" I bolted on some cheap aluminum racing pedals and it made a world of diference. Now there is only like a 1/4" gap between the brake pedal and the gas pedal and it all makes sense to me.
I still haven't learned to do it well though
Mike
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