shift no clutch

[DeejayRuckus]

the other day i was on the fone and my buddy was riding shotgun, i needed to shift into 3rd gear and usually he wait's till i hit the clutch to shift, but this time he thought i had my foot down on the clutch and he pushed it into 3rd gear and it actually went in...how does that work?

[TheGreatOne]

You've gotta get the gear you're in and the gear you're shifting to moving the same speed...this is basically what syncro's do. For a good rule of thumb, if you rev to about 3k, pop it out of gear, you should be able to put it in the next gear when the rpm's hit about 2500. Just keep a little pressure on it and it should slide right in. It can be smoother than shifting with the clutch, just be careful and you won't break anything.

[pgtatx]

was the pedal pushed in at all?? The clutch does not need to be pressed in all the way.

[DeejayRuckus]

nope, the clutch wasn't pressed at all...he must of really grinded it,but then again u can hear when its grinding so i was kinda confused what just happened lol

[OhSoFastCougar]

no the clutch is not needed for anything more than starting from a stand still, but than again u can't pull out of a gear and expect to slam it into the next at high rpms, u gotta match the engine and tranny rpms in order to shift smoothly or it grind like a motha @#&%$@, so don't even think of doing this during a race or hard driving

trust me i know, i drive a 2001 Mack 9-speed roll-off truck 12-14 hours a day and don't use the clutch for nothing except for starts from a complete stop, downshifting is the exact same but instead of letting the rpms drop to match the gears u gotta build the rpms by giving it gas in neutral after u pull out of gear :biggrin:

[dv6cougar]

OhSoFastCougar has it :)

i do the same at times in my cougar... not terrible hard if you know what your doing.

[Madcat]

Let me just say again like stated, make sure you KNOW what you are doing. This isnt bad at all if you can do it safely for your tranny. I used to do this in my friends 3000GT.

[P999LTS]

:wave: The technique used to be called "double declutching" in the days before synchromesh.

[exigent]

I can run through the gears 2-5 and back down to 2 without clutching at all... syncros well... they sync! If you move to the next gear at the correct rpm it will just drop into the next gear without grinding... doesnt work 100% of the time but if you *know* and in mean KNOW the shiftpoints you can get it. It helps to push/pull a bit on the stick toward the next gear and "feel" for the sync point. Obviously you CANNOT be on the power when you do this...


As a final note... dont do this... its stupid and can really cause some damage. If your tranny is low miles you prolly cant do it since the syncros arnt really broke in. On a high miles trans you can REALLY do it easy.

[LostRacer]

Originally posted by: P999LTS
:wave: The technique used to be called "double declutching" in the days before synchromesh.

I thought it was called "power shifting":shrug:

[Aries]

Isn't power shifting, shifting without letting up on the gas?

[P999LTS]

Originally posted by: LostRacer

Originally posted by: P999LTS
:wave: The technique used to be called "double declutching" in the days before synchromesh.

I thought it was called "power shifting":shrug:



:biggrin: In the UK changing down without synchromesh (but using the clutch) was called double declutching. Basically when changing down you put gear into neutral, lift clutch, rev engine, depress clutch, change gear (if you got the revs right!!) i.e. overcomming the lack of synchromesh; changing up was more exciting. I think power shifting is the same without the extra clutch movement i.e. keeping the revs at the same level as you move the shift through neutral, with a slight pause in neutral; this assumes no use of clutch which is what the thread is about (by the way when this started it was because a passenger was changing gear for the driver who was on a mobile - in the UK it will soon be an offence to use a mobile whilst driving!):rolleyes:

[SLiDE]

It's also called "floating gears".

I don't have enough confidence to do it because I tend to drive in the higher RPM range... and I'd rather not risk grinding and possibly ruining a synchro...

I figure the clutch is there for a reason.

[PGCougar]

I honestly don't think I even remember how to use my clutch anymore! Like OhSoFastCougar, I drive a big truck too, except mine is a Kenworth with an 18 speed tranny. Oh yeah, poor guy driving a Mack! Anyways, I only use the clutch when I'm starting or stopping. As long as your engine speed matches your road speed, you'll be fine. Personally, not sure how good this is on a syncro-mesh tranny, but in the big trucks, mine's got an Eaton Fuller tranny, its totally harmless!!