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In Reply to: what are the basic procedures for this? posted by Alex in s. fl on March 19, 2002 at 12:56:17:
When changing up:
Declutch as normal and select neutral. Re-engage clutch. Very short pause for revs to drop. Declutch, engage higher gear and re-engage clutch. Lower gears tend to need a slightly longer pause than for higher gears (bigger ratio gaps).
When changing down:
As above, but when in neutral, blip throttle before declutching and engaging lower gear. Lower ratios need bigger blip.
Sounds awful slow but you will soon get used to it and with a bit of practice you can be extremely quick.
On my previous M535i with obstructive dog-leg box, I did this almost all the time, especially helpful when the tranny was cold.
Agree in general with all the previous posts on this but double de-clutching can be helpful if your tranny is no longer youthful and is exhibiting worn synchros (e.g. if you can fairly easily beat the synchro when changing from 1st to 2nd). Then it will help your tranny last longer and will allow you to drive the car sympathetically even with completely knackered synchros.
Of course, with practice (preferably on someone else's car!) it's possible to drive a stickshift without using the clutch at all, provided you're careful and sympathetic....no, never tried it on my M5, save that experience for the rainy day when the clutch master or slave cylinder has failed! Arguably there are few better ways of teaching oneself the art of anticipation, particularly in slow-moving traffic...
Have fun!
Steve