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puposefully skipping a gear on upshift?

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Old Oct 16, 2002 | 10:01 AM
  #21  
s2kpdx01's Avatar
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From: Foster City, CA
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if you skip shift you will have to rev match.
The only way around this the shifter through the gates with the clutch in. the time it takes to run the stick through 3- 4- and finally engage 5th (say a 1-2-5 shift) will keep the revs just right.

I have skip shifted every car....I didn't realize people never did this??
6 gears can be annoying when you are going to speed up to some speed and then stay at the speed for a while. I like to accelrate fast 1-2 (up over 60), but now i'm going as fast as you can on the highways (55 mph in oregon), so i go into 6th from there...seems logical.
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Old Oct 16, 2002 | 10:06 AM
  #22  
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From: Torrance
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Hi Guys:

I have some transmission parts on my desk from my customers who skip gears. If I knew how to post photos I'd send them.

The problem with skipping gears is the same as shifting from first to second very fast and making it grind.

There are Double cone synchros in 1,3,4 single cone synchros in 5,6,R and a triple cone in 2nd.

As I have posted before, if you shift quickly from first to second and you don't give the 2nd gear synchro time to slow down the 19 pound main shaft to match the next engine speed, then you will grind the sleeve as it contacts 2nd gear. All you need is constant pressure and 1/2 second on 2nd gear. If you put too much force you don't give the synchro time to slow down the main shaft before the sleeve hits the gear.

The same is true for skipping gears. Honda does not recommend it but if you are going to do it any way you just have to give a little more time for the synchro to do it's job. Double clutching on an upshift is good, if it is done correctly it will slow down the main shaft. It probably takes as long to double clutch as it does to just wait for a half second and let the synchro do it's job.

I have photos of all this. If I put it in a Word document could someone post it somewhere?

HTH,

Woodwork
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Old Oct 16, 2002 | 10:48 AM
  #23  
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Woodwork, since you are registered as an "owner", you have photo storage space on this forum. "Start button", photo album, go from there. When you post, "Insert Photo From Your Albums".
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Old Oct 16, 2002 | 10:58 AM
  #24  
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Woodwork,

Since 2nd is the only gear to have a triple cone synchro, is this why it is tougher in the cold than my other ones? Yes, I know about the slight pause between 1-2 shift that gives the synchro enough time to work and make the shift smooth. Everyone should do the 1-2 shift like that to save wear on their tranny.
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Old Oct 16, 2002 | 12:37 PM
  #25  
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When going onto an Interstate I often go from 4th to 6th. Only problem is that I forget and try the samr thing on my Miata and hit REVERSE!!.

Also btw, on down shifting, rev matching and double clutching are NOT the same thing. You can rev match by simply blipping the throttle with the clutch depressed. This makes it smoother when you release the clutch but does NOTHING to help the synchros. To do that you must DC which means taking your foot off the clutch when you blip the throttle.
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Old Oct 30, 2002 | 01:56 PM
  #26  
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I noticed that I often go 1-2-3-4-6 but when I do I still shift from 4th, into 5th, then directly 6th (without releasing the clutch pedal until after I'm in 6th). I wonder if this in "enough" time to let the synchros do the work? What your take on my technique Woodwork?
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