down gear from 3rd to 2nd
h: 
BOOM goes the dynamite!
Joined: Mar 2003
Posts: 27,571
Likes: 1
From: in a van down by the rive
Originally posted by westcoaststyle
You're wrong about how to rev-match. If you have your clutch pushed in, the transmission is not engaged and therefore will not spin with the engine while you rev... so it's useless.
To rev-match: Say you're in 3rd. You push the clutch in, put it in neutral, let the clutch out, rev, push the clutch in and put it in 2nd.
This way the transmission spins with the rotation of the engine and is already going to same speed when you put the clutch back in and downshift.
Make sense?
hih
You're wrong about how to rev-match. If you have your clutch pushed in, the transmission is not engaged and therefore will not spin with the engine while you rev... so it's useless.
To rev-match: Say you're in 3rd. You push the clutch in, put it in neutral, let the clutch out, rev, push the clutch in and put it in 2nd.
This way the transmission spins with the rotation of the engine and is already going to same speed when you put the clutch back in and downshift.
Make sense?
hih
Registered User
Joined: Sep 2003
Posts: 1,035
Likes: 0
From: Queens, NYC, U.S.A.
Double clutching is rev, clutch, neutral, clutch, shift to desired gear. Rev matching is clutch, neutral or leave clutch pressed in, tap throttle, place into gear, release clutch. When I downshift I never go from gear to neutral then rev...I clutch in, downshift to desired gear, keep clutch engaged, rev, then release...
Still here... sorta...
Joined: Sep 2000
Posts: 17,177
Likes: 2
From: CO
That doesn't make sense, nor does it work like you think it does. Read my post above. It'll make more sense to you. 
Why would you rev after you put it in gear? The whole idea of rev matching is to speed up the transmission to the speed you're about to rev the motor to by downshifting and releasing the clutch. :thinking:
Why would you rev after you put it in gear? The whole idea of rev matching is to speed up the transmission to the speed you're about to rev the motor to by downshifting and releasing the clutch. :thinking:
Registered User
Joined: Sep 2003
Posts: 1,035
Likes: 0
From: Queens, NYC, U.S.A.
But if I have the clutch pressed in and in gear THEN rev and release the clutch doesn't that act as the same purpose of downshifting to neutral THEN revving and THEN placing in gear and releasing the clutch? By the time you get into the gear and release the clutch shouldn't the engine rpms be low enough not to be effective since you're revving in neutral? I know you want to speed up the tranny to the speed you're about rev the motor to but isn't it the same just to go into the desired gear WITH the clutch pressed IN then blip the throttle while RELEASING the clutch? I've seen lots of auto-x and track vids and they always show the "pedal" cam and this is what they do. I haven't seen any of them go to neutral, rev, then downshift and release the clutch. Before they go into the corners they start slowing down while getting into the desired gear and while braking they blip the throttle and release the clutch to match rev. IMO...
