The Dragon

iTrader: (6)

GM's engineers and test driver's do this with ZO6's and any LS1 with the T-56.

Anybody care to share the knowledge??

<img src="images/icons/wink.gif" border="0">

Mike Sorrentino

Normal driving, I shift without the clutch sometimes, esp. in heavy traffic. When you're upshifting, the input shaft is turning faster than the output shaft. With your foot off the gas, you can slide it out of gear, then put slight pressure on the shifter against the next gear. When the two shafts are turning the same speed, it'll slide into gear.

AAron

syncros are too expensive i just dont do it

ramairJP

iTrader: (3)

I can do this on my race bikes and can get a shift in the blink of an eye. Keeping the front wheels off the ground while running through a couple gears is fun <img src="images/icons/smile.gif" border="0"> . However, it's a sequential shift tranny, and I rebuild the thing once a year, so the wear and tear really doesn't take it's toll. Putting pressure on the gear like Mike described can be hard on the shifting forks and synchros.

The clutch is there for a reason, and I think a very quick shift with a small dip in the clutch is about as fast as you can get. I can't imagine just yanking the shifter from gear to gear at WOT. Maybe I need more practice, but I don't see it happening.

John

QuikSSilver

OUCH..... poor tranny....

I drive Semi... those trannys are made to be shifted w/out the clutch.... our little tranny will not take it forever.....

In my Truck there is no syncros.... it's all about Rpm and road speed.... <img src="images/icons/grin.gif" border="0">

Takes practice... but after doing it a while you can get into and normal car with syncros and go thought the gears once or twice and learn the rpm difference between gears ... thus alowing flawless non syncro utilizing(or wearing) shifting....... (that's a mouth full) <img src="images/icons/rolleyes.gif" border="0">

Damian

iTrader: (89)

You need to ask yourself....

Which would you like to buy once a year, a clutch, or a tranny???


Nuff said <img src="images/icons/wink.gif" border="0">


Josh

Colonel

I don't advise doing this with these trannys.

Moving to drivetrain. <img src="images/icons/smile.gif" border="0">

MelloYellow

Just apply light pressure 'til the rpm's match and it slips in. That and a quick prayer to the Synchro gods always helps. <img src="images/icons/tongue.gif" border="0">

[ December 04, 2001: Message edited by: MelloYellow ]</p>

Louis

iTrader: (7)

That was John Heinricy(sp?) the GM corvette driver. You can try to shift without the clutch, but the T56 was not designed to be shifted that way. It has syncros, not dog-rings. Dogs are what allow this clutchless up/downshift to occur. Syncros keep the gearbox quiet, and smooth, bringing the next gear upto speed for enguagement. The motorcycle has a sequential Dog-ring gearbox, along with Tractor-Trailers, ATVs Indycars, F1 cars, Trans-Am cars and many other series. "Dog Boxes" are loud, whiney, and clunk a lot, and if you do get stuck in neutral, you cannot simply just push the clutch in and put it in gear, you have to match-rev to allow it into gear, otherwise, it just grinds. The S.A.M. SS has a Jerico Dog box, and most Dragracers that are in the 8s or lower use a dog box, if they are not using an auto. It really botherd me to read that, Because I know that John H. uses the clutch on EVERY shift in the car that he Clubraces with Phoenix Pont./GMC! Just the facts!