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white86 Regular Location: Brisbane Registered: May 2004	Re: Double clutching? Sun, 14 August 2005 03:55 ok boys and girls... let's get this straight Flat shifting is changing up gears without touching the CLUTCH. To do this you very often have to momentarily lift the throttle a slight amount. This can be seen in V8 Supercars for instance, where the Motec computer actually cuts the ignition for a split second during an upchange, so that the driver can leave his foot flat on the throttle too. Double clutching in a synchro car is pointless on upchanges! You actually want the revs to drop slightly to match the next higher gear, hence lifting the throttle. Downshifts are a different story however. The heel-and-toe technique is used to blip the throttle to raise revs to match the next lower gear. This is done in racing/quick driving situations so that when the clutch is released you don't experience a small amount of compression lock (ie. cruise along at 40km/h in 3rd, change down to second and side-step off the clutch - the back wheels will chirp). [Report message to a moderator]

	Subject	Poster	Date
	Double clutching?	#Fiend#	Sat, 13 August 2005 11:50
	Re: Double clutching?	CrUZsida	Sat, 13 August 2005 12:04
	Re: Double clutching?	Cool1	Sat, 13 August 2005 12:26
	Re: Double clutching?	Corona RT142	Sat, 13 August 2005 13:03
	Re: Double clutching?	kingmick	Sat, 13 August 2005 13:52
	Re: Double clutching?	verbatim210	Sat, 13 August 2005 14:31
	Re: Double clutching?	justcallmefrank	Sat, 13 August 2005 14:40
	Re: Double clutching?	mithy	Sat, 13 August 2005 15:14
	Re: Double clutching?	verbatim210	Sat, 13 August 2005 23:07
	Re: Double clutching?	79rollaboy	Sun, 14 August 2005 01:05
	Re: Double clutching?	xolent	Sat, 13 August 2005 15:28
	Re: Double clutching?	dizzy	Sat, 13 August 2005 15:49
	Re: Double clutching?	TougeVitz	Sat, 13 August 2005 16:04
	Re: Double clutching?	mc68	Mon, 15 August 2005 23:29
	Re: Double clutching?	cannonball	Tue, 16 August 2005 04:32
	Re: Double clutching?	SIMDOG	Sat, 13 August 2005 16:11
	Re: Double clutching?	river	Sat, 13 August 2005 22:01
	Re: Double clutching?	Evan	Sun, 14 August 2005 03:20
	Re: Double clutching?	Corona RT142	Sun, 14 August 2005 01:08
	Re: Double clutching?	79rollaboy	Sun, 14 August 2005 01:23
	Re: Double clutching?	jackel	Sun, 14 August 2005 03:05
	Re: Double clutching?	kingmick	Sun, 14 August 2005 01:35
	Re: Double clutching?	finney	Sun, 14 August 2005 01:39
	Re: Double clutching?	white86	Sun, 14 August 2005 03:55
	Re: Double clutching?	bubbles	Sun, 14 August 2005 04:12
	Re: Double clutching?	86DRFT	Tue, 16 August 2005 06:15
	Re: Double clutching?	white86	Sun, 14 August 2005 04:14
	Re: Double clutching?	bubbles	Sun, 14 August 2005 05:34
	Re: Double clutching?	oldcorollas	Sun, 14 August 2005 05:55
	Re: Double clutching?	Dorio86	Sun, 14 August 2005 06:17
	Re: Double clutching?	feral4mr2	Sun, 14 August 2005 08:27
	Re: Double clutching?	mithy	Sun, 14 August 2005 05:06
	Re: Double clutching?	white86	Sun, 14 August 2005 05:20
	Re: Double clutching?	oldcorollas	Sun, 14 August 2005 05:33
	Re: Double clutching?	Rona_Drifter	Sun, 14 August 2005 11:12
	Re: Double clutching?	kingmick	Sun, 14 August 2005 08:08
	Re: Double clutching?	unforgiven	Sun, 14 August 2005 08:13
	Re: Double clutching?	ae86drift	Sun, 14 August 2005 08:38
	Re: Double clutching?	Arch	Sun, 14 August 2005 10:53
	Re: Double clutching?	KOPDIS	Sun, 14 August 2005 11:29
	Re: Double clutching?	#Fiend#	Sun, 14 August 2005 12:18
	Re: Double clutching?	Corona RT142	Sun, 14 August 2005 23:03
	Re: Double clutching?	Rona_Drifter	Mon, 15 August 2005 11:50
	Re: Double clutching?	tricky	Sun, 14 August 2005 13:49
	Re: Double clutching?	Shraka	Mon, 15 August 2005 12:06
	Re: Double clutching?	jesseT18	Mon, 15 August 2005 12:20
	Re: Double clutching?	kingmick	Mon, 15 August 2005 23:15
	Re: Double clutching?	Blown86	Mon, 15 August 2005 15:03
	Re: Double clutching?	Mookie	Tue, 16 August 2005 02:07
	Re: Double clutching?	rthy	Tue, 16 August 2005 02:24
	Re: Double clutching?	EvilJack	Tue, 16 August 2005 04:46
	Re: Double clutching?	Smokey228	Tue, 16 August 2005 04:11
	Re: Double clutching?	ke382TG	Tue, 16 August 2005 04:16
	Re: Double clutching?	Corona RT142	Tue, 16 August 2005 04:34
	Re: Double clutching?	cannonball	Tue, 16 August 2005 04:38
	Re: Double clutching?	Corona RT142	Tue, 16 August 2005 04:40
	Re: Double clutching?	cannonball	Tue, 16 August 2005 04:44
	Re: Double clutching?	Merudo	Tue, 16 August 2005 05:22
	Re: Double clutching?	Merudo	Tue, 16 August 2005 06:18
	Re: Double clutching?	86DRFT	Tue, 16 August 2005 07:37
	Re: Double clutching?	mc68	Tue, 16 August 2005 15:48
	Re: Double clutching?	cannonball	Tue, 16 August 2005 23:07
	Re: Double clutching?	Corona RT142	Tue, 16 August 2005 06:18
	Re: Double clutching?	86DRFT	Tue, 16 August 2005 07:21
	Re: Double clutching?	Shraka	Tue, 16 August 2005 07:45
	Re: Double clutching?	cannonball	Tue, 16 August 2005 06:28
	Re: Double clutching?	kingmick	Tue, 16 August 2005 08:38
	Re: Double clutching?	tricky	Sat, 20 August 2005 08:59
	Re: Double clutching?	mc68	Tue, 16 August 2005 23:14
	Re: Double clutching?	Corona RT142	Tue, 16 August 2005 23:17
	Re: Double clutching?	cannonball	Tue, 16 August 2005 23:35
	Re: Double clutching?	Corona RT142	Tue, 16 August 2005 23:40
	Re: Double clutching?	#Fiend#	Wed, 17 August 2005 11:07
	Re: Double clutching?	RWDboy	Wed, 17 August 2005 22:43
	Re: Double clutching?	Siktoy ra23	Fri, 19 August 2005 09:53
	Re: Double clutching?	tricky	Sat, 20 August 2005 08:53

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