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Shifting without pushing the clutch?

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Old Nov 15, 2006 | 02:36 AM
  #16  
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From: Los Angeles
i have also done this in my integra.
you just have to know how to rev match
you just got to know your gearing and you need to know what rpm in what gear = what speed

for example if you going 40mph in 4th gear and the engine is at 3,000 rpm. that means you can be in nutrual or in any other gear and as long as you rev the engine to 3k pmg and if your go 40 mph it will go into 4th gears like butter with no clutch and no jearking what so ever. like an automatic.

or
let say you shift at 3k rpm and from 1 to 2nd gear the rps drop 500. that means if you wait untill the rpms drop perfectely to the correct 2,500 and put it into second at that exact time no clutch is needed and every thing will be super smooth, smoother than ever useing the clutch.

so basically you only need the clutch when you at a complete stop

you dont need to rev match 100% you probable have a 200-300rpm window before it will grind
Old Nov 15, 2006 | 03:33 AM
  #17  
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Easist way to learn, get going in first up to about 5k rpm then pull it out with no clutch then put it up to second gear (dont force it in)and as the r"s fall it will slip in once it finds the right spot.Then do the same to 3,4 and 5.

These guys are right about the synchros its really not good for them.
Old Nov 15, 2006 | 05:59 AM
  #18  
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yeah no matter what youre forcing it through a moving synchro and its no good i used to drive my old crx and old tacoma this way when id get lazy or feel like putting my clutch foot in a different place on long drives but both those vehicles i didnt care about
the evo i would never dream of trying it
Old Nov 15, 2006 | 08:10 AM
  #19  
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Thanks for the thorough explanations!
Old Nov 15, 2006 | 08:40 AM
  #20  
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Many years ago, I taught myself this technique on an old Eagle Talon Tsi AWD. After much horrible grinding, I'm good at it and the tranny never had any trouble despite the at least 30 horrible grinds + many more lesser grinds.

That said, I'd never do this in a car I care about.

You can look like a hero to your friends if you do it right, or, I presume, a zero to your friends, if you kill the tranny and get everyone stuck on the side of the road!
Old Nov 15, 2006 | 08:51 AM
  #21  
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Yea... um... too complicated for me. I love my clutch too much!!!
Old Nov 15, 2006 | 08:51 AM
  #22  
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Sounds like an easy way to have to replace a tranny. It's possible but a terrible waste of a tranny for a $30,000 car. Unless, of course, you want to replace it under warranty and trade up for a 6 speed
Old Nov 15, 2006 | 08:57 AM
  #23  
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It's actually LESS complicated.... just sounds complicated when broken down into a step-by-step like above. Try writing out a similar step-by-step for what you do with your clutch, and I'm sure it'd sound equally complex... if not more so.

I've heard of people using this method exclusively, leaving the clutch components to rot....
Personally, I CAN do it.... but would rather not. Too much potential for damage to my tranny components, especially the syncros.
Old Nov 15, 2006 | 11:58 AM
  #24  
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I drove a rental Corolla all over Phuket, Thailand that way; only ground it once or twice. It is really easy if you don't force it. I also used to drive my dad's old Mazda RX-2 that way. It's fun, but I would never do it to my Evo.
Old Nov 16, 2006 | 02:15 PM
  #25  
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it's easy, just rev the engine up, let the engine speed match the transmssion speed, while the engine speed is slowly coming down ( you may have to try many times to get it), push the gear shifter in gear, when the transmssion speed and engine speed match, puff, the gear slide right in. I tried it many times, lots of fun, except... it was my old honda civic with 200,000 miles on it while I was delievery pizza back in the college days, I WON'T dare try in on my Evo man.
Old Nov 16, 2006 | 03:05 PM
  #26  
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Not a good idea, but go for it if you are curious. A few times cant hurt too badly.
Old Nov 16, 2006 | 03:07 PM
  #27  
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This method is called the O'Neil shift. Tim O'Neil is a rally driver and also has a rally school. He preaches left foot braking. So when hes going into a corner, using left foot braking, he has no foot to push the clutch. So, he does the O'Neil shift.
Old Nov 19, 2006 | 02:32 AM
  #28  
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btw, isn't this technique called power shifting?
Old Nov 19, 2006 | 01:54 PM
  #29  
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Powershifting, is shifting at full throttle using the clutch, just not letting off to shift. = Powershifting.
Old Nov 19, 2006 | 02:00 PM
  #30  
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Ohhh, I <3 synchros


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