> > > Philip wrote: > > > > > > A good driver will float all the up-shifts.
> >On 25/04/12 17:40, Max wrote: > > > > What does it mean to "float an up-shift"? > Hendrik & Fay wrote: > Floating a gear means shifting without using a clutch, a good > driver will be able to shift all gears, up and down, without > using the clutch. Floating a down shift on a hill under load is quite tricky - and if you miss, it is _really_ tricky to get back in gear before it's necessary to use the brakes to keep the truck from rolling back downhill. Down-shifting in other situations is much easier. > Only possible in a non syncro box, well possible in a syncro > box but you will have to be within a few engine revs. Yes, the revolutions have to match, but the transmission help with that process. Floating the shift with a non-synchro transmission is a faster shift than is possible with a clutch or with a synchromesh transmission, but there is no "safety net" with the non-synchro so the driver is responsible for matching the revolutions. With a synchromesh transmission, the synchros prevent engagement until the revolutions match, so it's actually much easier - but because the engagement can't be anticipated, it's takes longer. I do it every time I drive one of my cars with a manual transmission. -- Philip, who floats more shifts than he clutchs. _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
