Whats double clutching?

[VBaccord24]

I know heel toe and power shifting but what is double clutching?

[Chan_Man]

A useless technique..

Edit: Sarcasm in play.

[wed3k]

A useless technique..

not really, i use it all the time to chirp second and rev matching but if you can heel-toe then you dont need it.

i cant heel-toe

[hemlockz]

I thought it was when you are coming into a turn and need to downshift, you clutch, take it out of gear, let the clutch in, rev match, then clutch and drop into gear. The idea behind it is that when you rev match with the clutch pedal out and the tranny out of gear, the synchro spins up and matches the speed of the gear you are about to drop into. It all has to happen really fast to work. single clutch downshifting means you'd drop the gear onto a stationary synchro, so it would have to spin up causing you to loose some rev and a little bit of drivetrain energy.... i think? but then i saw the fast and the furious and vin diesel said you gotta double clutch in a drag race so i'm not sure you should even listen to me since I obviously don't know what it is.

[wed3k]

I thought it was when you are coming into a turn and need to downshift, you clutch, take it out of gear, let the clutch in, rev match, then clutch and drop into gear. The idea behind it is that when you rev match with the clutch pedal out and the tranny out of gear, the synchro spins up and matches the speed of the gear you are about to drop into. It all has to happen really fast to work. single clutch downshifting means you'd drop the gear onto a stationary synchro, so it would have to spin up causing you to loose some rev and a little bit of drivetrain energy.... i think? but then i saw the fast and the furious and vin diesel said you gotta double clutch in a drag race so i'm not sure you should even listen to me since I obviously don't know what it is.

double clutching ina drag race is pointless, powershifting is better but harder on the engine/tranny since you rev pretty high considering how fast you can shift.

[Chan_Man]

I only heal and toe when I am either drifting, taking a turn, or downshifting gears. Powershifting is okay for all motor car its bad for a turbo car its a no no.

[hemlockz]

double clutching ina drag race is pointless,

kinda i was being sarcastic and making a joke... i can't imagine how to double clutch when you upshift.

[daived]

OOO. i know this one. i looked it up i think.

double clutching is used in older cars without synchros. basically you need to have the gear shaft spinning the same speed as the engine when you shift, or else you break your engine. so when you double clutch, you clutch to take the car out of gear, rev the engine like in heel-toe, then clutch and put it in gear. modern cars dont need to clutch, because the synchros automatically match the gear.

www.howstuffworks.com<-- look up manual transmissons

[HenRoc]

I know heel toe and power shifting but what is double clutching?

Someone was watchin F&F .

'Granny shifting not double clutching like you should, you blew the welds on the intake so now me and the mad scientist gotta rip apart the block and replace the piston rings you fried'

'You had ME? You never had me YOU never had your car'

[KillerCam282]

Wait, whoa!!! If you are going to quote my favorite ricer movie quote it right.
ITS:

You lucky that 100 shot of Naws didn't blow the welds on the intake...

[HenRoc]

lol

[williamsvt]

Wait, whoa!!! If you are going to quote my favorite ricer movie quote it right.
ITS:

You lucky that 100 shot of Naw didnt blow the welds on the intake...

LMAO.

[shawn.hayden]

I NEVER NARC'd ON NOBODY!



....

[MRX]

:sits back with popcorn watching the mayhem:

funny thread

[Mista Juice]

good lord.. i remember SOOO many n00bs posted about this *** ass shit when fast n furious came out..

double clutching is used in older cars without synchros. basically you need to have the gear shaft spinning the same speed as the engine when you shift, or else you break your engine. so when you double clutch, you clutch to take the car out of gear, rev the engine like in heel-toe, then clutch and put it in gear. modern cars dont need to clutch, because the synchros automatically match the gear.

everyone i know has called that "rev matching"..