granny shifting and double clutching........

[CIVICDX247]

not that i dont know how to double clutch or any thing but i have a probly a really stupid question,

what the heck is granny shifting??????


is it shifting like my father probly would shift like as in (1st -2nd-3rd-4th-5th)


or as i would shift during a race (1st-2nd-3rd-2nd-3rd-4th-3rd-4th-5th)


am i on the right track here ? ? ? ? ? ?



let me know .

[CivicSpoon]

granny shifting is feathering the clutch, much like you'd do when you're just driving normaly. But the 1st-2nd-3rd-2nd-3rd-etc thing is a nice way to over rev your motor unless you're hitting corners doing autocross (SCCA type thing). In a straight line you never want to downshift when accelerating or your rpms will be far too high in the lower gear. Check out some of the videos online of kids doing that, there's one specifically where the kid downshifts and blows a hole in his tranny as soon as he lets out the clutch.
Now tell the truth...did you just get done watching the Fast and the Furious?

[playtoy_18]

i'm from oklahoma and we granny shifted our trucks all the time in high school,some new trucks still do it,mosty all older trucks also,here it simply means you go from 1st to 2nd and/or 3rd to 4th without pressing clutch,some trannys will allow the shift to be made with no clutch at all,simply shift.some people round here also call it a granny gear when there is an extremly low first gear,cause you waller round in first to take off then slam down to second,no clutch,and take off.then again,this is just hillbilly's down here,so it might not be the same,never heard of it in cars,just our old pickups,though my 99 s-10 can shift 3 to 4 no clutch.

[CivicSpoon]

I think you're talking about power shifting, playtoy. I don't know I've heard so many different names for different things. I've been told powershifting by one person and double clutching from a different person and thye were both talking about the same thing.

[CIVICDX247]

actualy its been on my mind ever since vin diesel said it in F&F to paul walker.

just wondering. . . .

[tomsindahizouse]

why would you have to double clutch your honda?

[sirunner]

power shifting and double clutching are the same thing, and granny shifting IS whene you feather clutch

[Shaguar47]

And feathering is where you give it gas while you let out the clutch while shifting? It slips a little, right?

[Greenblurr93]

Originally Posted by sirunner

power shifting and double clutching are the same thing, and granny shifting IS whene you feather clutch

If i remember right.. (If im wrong ignore me.. im tired) Double clutching and powershifting are opposites. Powershifting is when u simply slam your shifter through the gears without using you clutch and double clutching originated back when trannys didnt have syncro's. Its when you push the clutch in, pull it into neutral, let of the clutch, pushed it in again then pulled it into gear. I know it sounds like quite the prosess but it was supposed to help line the gears up before u shifted so u wouldnt grind. But that was back when tranny's had no syncros so none of us should be worrying about it.

[Masta]

Originally Posted by Greenblurr93

If i remember right.. (If im wrong ignore me.. im tired) Double clutching and powershifting are opposites. Powershifting is when u simply slam your shifter through the gears without using you clutch and double clutching originated back when trannys didnt have syncro's. Its when you push the clutch in, pull it into neutral, let of the clutch, pushed it in again then pulled it into gear. I know it sounds like quite the prosess but it was supposed to help line the gears up before u shifted so u wouldnt grind. But that was back when tranny's had no syncros so none of us should be worrying about it.

correct.

[Igovert500]

Originally Posted by Greenblurr93

Its when you push the clutch in, pull it into neutral, let of the clutch, pushed it in again then pulled it into gear.

You forgot the important part, after you have it in neutral, you tap the gas to rev-match your rpms, then you push the clutch in again and shift to the lower gear.

And yes, as of now, it isn't required on most cars...but that doesn't mean it isn't a good idea. Some cars have problematic synchros, 3000gts for example, and to lengthen their lifespan, double-clutching is a great idea. Many people still do it in modern manuals, myself included.
Just my .02

[KaMaKaZiPyRo]

hold up, i thought powershifting was shifting normally with the clutch in but not letting off the gas.

[BullShifter]

See what that lame ass movie has done

[MexSiR]

All the shit stated here is wrong. Damn!

Grannyshifting = shifting at low rpms, not close to where your engine is making the MOST power. If your engine makes 127 hp at 6700 and you are shifting at 4500 rpms, you are granny shifting. Shifting too early.

Powershifting = Upshifting (1st to 2nd or 2nd to 3rd...) without letting off the gas. So you press the clutch while you are pressing the gas at the same time and shift. If you shift like this at redline you will be mostly hitting the rev limiter for the split second, this is not recommended but it sometimes generates better times at a track.

Doubleclutching = Serves no purpose. If you double clutch while you upshift you are an idiot. Period. If you double clutch while downshifting it helps a little. The transition from one gears rpms to the lower gears is not as rough. If your on 3rd at 5000 rpms and you just press the clutch put it into second and release the clutch, the engine will jump suddenly from 5000 rpms to 7000 lets say, a bit rough...by rev matching your engine: that is setting the rpms in neutral to the equivalent of the lower gear, the transition will be smoother.

Now. Get IT?

MexSiR

[wako528]

well said