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proper downshifting technique?

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Old Feb 21, 2005 | 01:39 PM
  #11  
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when i do my rev matching

i usually just clutch in and downshift to a lower gear, while clutch still pressed in, i blip the throttle to match rev and clutch out and drive??

i never put it in neutral??.... is this the same thing? what is wrong here?? it's more easier and i like how the sound it creates....

BTW MY 04's have triple synchros correct?
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Old Feb 21, 2005 | 01:42 PM
  #12  
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Originally Posted by Warpinoy' date='Feb 21 2005, 02:39 PM
BTW MY 04's have triple synchros correct?
Only for third gear. Doubles in 1, 2, 4, singles in 5, 6, if I recall correctly.

Edit: I just realized - the triples in third gear are likely for this very situation, downshifting to third, which is generally the most useful downshift gear.

Except that, for U.S. 2.2L cars, fourth gear is the most useful downshift gear, since third tops out a little early. A rare case of the Honda engineers missing a bet? Or maybe doubles are sufficient in fourth, anyway, since one is only skipping one gear on the downshift.
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Old Feb 21, 2005 | 01:50 PM
  #13  
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Once you place the shifter in neutral you have to release the clutch before you rev it up to the proper RPM. If you keep the clutch down, that doesn't do anything except perhaps the pretty sound. The higher the RPM in the lower gear is going to be right after the gear shift, the more important it is to use the technique.
Tonino.
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Old Feb 21, 2005 | 01:58 PM
  #14  
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Originally Posted by Mandocorri' date='Feb 21 2005, 02:50 PM
Once you place the shifter in neutral you have to release the clutch before you rev it up to the proper RPM. If you keep the clutch down, that doesn't do anything except perhaps the pretty sound.
Yes it does. On a synchronized tranny, the synchros match the input shaft to the output shaft and the rev blip matches the engine to the input shaft.

On a non-sychro tranny, you have to double clutch so that you match the input shaft to the output shaft manually.
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Old Feb 21, 2005 | 03:26 PM
  #15  
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It's placing the shifter into 1st before coming to a complete stop the has caused alot of problems for people, 2nd OK.... First, no good.
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Old Feb 21, 2005 | 03:37 PM
  #16  
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have you owned your car since 00?
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Old Feb 21, 2005 | 04:03 PM
  #17  
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no need to double clutch on modern cars....though i guess you can argue that it puts less strain on the synchros
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Old Feb 21, 2005 | 04:43 PM
  #18  
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thanks for all the inputs. guess i was just worrying a bit for nothing. Useful info btw.

1a-race, if you are asking ME if i've owned the car since 00, no, i haven't. Just brought if home saturday but haven't driven it. Can't get tags till I have a title, and its somewhere in the mail coming from honda.
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Old Feb 22, 2005 | 07:18 AM
  #19  
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I realize that one does not NEED to double clutch, but I do if I am moving to a non-sequential gear (ie 3-5 or 4-2).

I also double clutch when upshifting from 1-2 and 2-3 when doing relaxed driving. Yes the syncros SHOULD take care of matching, but they do wear out (2 and 3 are the syncros that take the most punishment). I double clutch in relaxed driving so I don't have to in aggressive driving. I want to ensure the syncros last the life of the car.
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Old Feb 22, 2005 | 11:41 PM
  #20  
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Originally Posted by steven975' date='Feb 21 2005, 12:26 PM
in 5th
clutch in
shift neutral
clutch out
rev-match
clutch in
select gear
clutch out.

if you rev match WHILE you are pressing the clutch, you are not matching the flywheel and input shaft at all.
There's time when it calls for double clutching, and there's time for heel and toe. Your method for double clutching is fine, but i have to say no on the rev matching while the clutch is down is bad. If you think of it...that's how heel and toe works. And for the pros, they can do the heel and toe in less than a second. The clutch is down the entire process.
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