View Poll Results: Double-Clutching
No, I've tried it and think that double-clutching is for the birds and isn't necessary with a synchronized trans.
53.85%
Voters: 52. You may not vote on this poll
Double-Clutching
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Joined: Aug 2001
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From: Santa Clara
I really think it's time for an s2ki FAQ that explains rev-matching, double-clutching, and heel-toeing well enough so these threads can stop happening. Most people use the terms quite incorrectly.
And yes, if no one else does, I might write it.
- Warren
And yes, if no one else does, I might write it.
- Warren
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Joined: Aug 2001
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From: Santa Clara
My girlfriend spent a number of Calories one night trying to convince me that I drive my car incorrectly. 
Her dad (who is never wrong, even when he is) is the type that downshifts through every gear (and does not rev-match) as he approaches a stop light. It literally makes me cringe whenever I'm forced to ride with him. Personally, like all rational people who understand cars, I just put it in neutral and press the middle pedal when I approach a stop light. One day she realized I didn't drive like Daddy, and she got on a crusade to make me. Eventually she gave up, though. I still press the middle pedal to slow the car down. I find it works the best out of all three.
Compression braking is a no-no.
- Warren
Her dad (who is never wrong, even when he is) is the type that downshifts through every gear (and does not rev-match) as he approaches a stop light. It literally makes me cringe whenever I'm forced to ride with him. Personally, like all rational people who understand cars, I just put it in neutral and press the middle pedal when I approach a stop light. One day she realized I didn't drive like Daddy, and she got on a crusade to make me. Eventually she gave up, though. I still press the middle pedal to slow the car down. I find it works the best out of all three.
Compression braking is a no-no.
- Warren
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Joined: Jun 2001
Posts: 7,446
Likes: 1
From: West Mids.
Coasting out of gear and braking is a bad practise Warren. You've only got 1 control parameter over the car...braking! No ability to accelerate out of trouble should the need arise. Whilst I wouldn't advocate dowshifting though every gear, being in say, second gear prior to coming to a stop gives engine braking couple with the ability to stop or accelerate. Any advanced driving course will tell you that the car should be in an appropriate gear at all times for the speed/conditions you are travelling. This is whether you're moving at 5 mph or 60 mph.
I drive behind cars all the while by the way who ride the brakes all the way down hills for the sake of being in the appropriate gear.
I drive behind cars all the while by the way who ride the brakes all the way down hills for the sake of being in the appropriate gear.
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Joined: Dec 2001
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From: Berkeley
explain to me real quick sense i'm new to this car thing. but when i downshift i simply slow down - i've double clutched before but i just realized that i didnt even know i've been doing it. So what exactly is rev matching? Do you just match the revs at which 1st gear should come in? I mean thats what i do - like when i'm going like 30 mph and i want to downshift into first i just might let it roll a little or press the brakes to get it down to like 20 then i put it in first and go.
sorry for being so forking dumb anyone want to explain to me?
sorry for being so forking dumb anyone want to explain to me?
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Joined: Oct 2000
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Originally posted by Cedric Tomkinson
Any advanced driving course will tell you that the car should be in an appropriate gear at all times for the speed/conditions you are travelling. This is whether you're moving at 5 mph or 60 mph.
Any advanced driving course will tell you that the car should be in an appropriate gear at all times for the speed/conditions you are travelling. This is whether you're moving at 5 mph or 60 mph.
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Joined: Aug 2001
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From: Santa Clara
dlq04 and Cedric,
Good points -- I didn't think of it that way. I dunno, it just seems painful to me. I like dlq04's suggestion of keeping it in gear, but holding the clutch in -- you'll still have instant power if you need it, but you don't have to wear out your clutch in the process.
- Warren
Good points -- I didn't think of it that way. I dunno, it just seems painful to me.
I like dlq04's suggestion of keeping it in gear, but holding the clutch in -- you'll still have instant power if you need it, but you don't have to wear out your clutch in the process.- Warren
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Joined: Jun 2001
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From: West Mids.
supernig:
Rev matching is very desirable technique in any car. I can't imagine driving a sports car without employing it.
What you need to do is find yourself a nice quiet straight back road. get up to about 60-70 mph in 4th gear. If you just take 3rd. gear now without rev matching, or as you say slowing down to an appropriate speed, you well know the result, horrible transmission whine as the lower gear has to absorb the shock of taking that gear change at too low revs.
Now do the same thing again, getting up to the same speed, but this time dip the clutch, give a hefty prod on the accelerator with your right foot, you really want to hear the revs rise, then straight into 3rd gear, release the clutch and back on the revs. You'll find you'll have accomplished the gear change much more smoothly without any loss of speed. Practice it, you'll soon get the hang of it! What's the point? Well imagine now you're approaching a bend at 60- 70mph and common sense tells you that 3rd gear is a safer gear to be taking the bend... you accomplish that gear change smoothly and the bend is going to be a lot safer for being in the right gear.
Double clutching... we call it double declutching is hardly necessary with modern gearboxes but to do the same thing double clutching, you would dip the clutch, select, neutral, release the clutch, rev,dip the clutch and put the gear lever in third, release the clutch, back on the gas. I wouldn't lose too much sleep about learning the technique in modern cars.
Hope this helps.
Rev matching is very desirable technique in any car. I can't imagine driving a sports car without employing it.
What you need to do is find yourself a nice quiet straight back road. get up to about 60-70 mph in 4th gear. If you just take 3rd. gear now without rev matching, or as you say slowing down to an appropriate speed, you well know the result, horrible transmission whine as the lower gear has to absorb the shock of taking that gear change at too low revs.Now do the same thing again, getting up to the same speed, but this time dip the clutch, give a hefty prod on the accelerator with your right foot, you really want to hear the revs rise, then straight into 3rd gear, release the clutch and back on the revs. You'll find you'll have accomplished the gear change much more smoothly without any loss of speed. Practice it, you'll soon get the hang of it!
What's the point? Well imagine now you're approaching a bend at 60- 70mph and common sense tells you that 3rd gear is a safer gear to be taking the bend... you accomplish that gear change smoothly and the bend is going to be a lot safer for being in the right gear.Double clutching... we call it double declutching is hardly necessary with modern gearboxes but to do the same thing double clutching, you would dip the clutch, select, neutral, release the clutch, rev,dip the clutch and put the gear lever in third, release the clutch, back on the gas. I wouldn't lose too much sleep about learning the technique in modern cars.
Hope this helps.
