Shifting techniques. Which is "best"?
 

Hey guys,

I am fairly new to the forum (second thread!!) and I have been pondering this and Googling this for some time, and just cannot find enough information about it. I'll break this down into two parts:

1. What different shifting techniques are there?
2. Which shifting technique is "best"?

These are the terms I have heard of: Granny shifting, Double clutching, Power shifting, Rev matching, Clutch-less shifting...

And this is what my (n00b) knowledge is:

Double clutching: Lift gas, depress clutch, remove from gear (neutral), release clutch, perhaps rev-match(?), depress clutch, put into gear, release clutch with gas.

Power shifting: Depress clutch without lifting from gas, remove from gear, slam into next gear, release clutch.

Clutch-less shifting: Lift gas, wait for revs to drop to match next gear, slam into gear, bag on the gas.

Granny shifting: Something Vin Diesel was told to say to sound knowledgeable...?

So... basically, I'm interested in knowing what the "best" way of UPshifting is. I know that the "best" can be objective, so let's forget about saving your clutch and think about increasing laptimes, control, acceleration, etc etc...

Comments? Opinions? N00b slaughter?

push in clutch, select gear, release clutch, continue down road.

You need to get a heavier shift knob. Just blip the accellerator and slam that bitch through the gates. Best way. No clutch or syncrhos. My friend can machine you a 8 pound knob.

^I've got one of those in my pants.

This man is wise beyond his years and you would be smart to listen to him.

Interesting... a heavier shift knob.

Wouldn't I still need to wait for my revs to drop before slamming the car into the next gear either way?

No. With a weighted knob, the extra force is enough to push through the gate without worrying about the revs. You'll be all good.

Holy crap that's cool.

Would that be a problem with a short shifter? Since, theoretically, the shorter shaft (moar slaughter?) would have less torque or whatever? Orrr, would the sheer weight of the knob be enough to do it?

Also, I know I said not to worry about it but now that I have my answer, would that be balls on the tranny?

Well technically you could get a taller shift knob that has weight bias towards the top. That way you correct the shortening of the handle.

As for tranny damage, everything should be fine but I don't have the technical knowhow to explain it. I'll let someone else step in.

Perhaps I should be looking into a heavier shift knob. I had no idea the knob would make such a big difference.

How much would something like that run me, anyway?

probably anywhere from 40 to 140
voodoo
james barone - http://jamesbaroneracing.com/Shift_Knobs/5SPD/index.htm
twm
and anything in between

PS. Thanks for all your help.

A heavier knob makes all the difference in the world, just ask your Mom.

Dead link.

Good to know.

I was hoping this would be a serious thread.

As was I.

It's something that I've been honestly trying to figure out for the longest time, probably ever since hearing the term "Double-clutching" and "Granny-shifting" from the good old, original The Fast and The Furious. The most my searches ever turned up were useless videos about some "awesome" driver doing some "awesome" power shifting in his 900hp Skyline... :(

Perhaps anyone else have anything constructive to add to the thread?

replace transmission with cvt

See Post#2 and close thread.

Why did I even click this...

Attachment 188532

You need to go old-school, because that's exactly what this technique is... old.
http://www.youtube.com/watch?v=t8rPx3BXNqw#t=8m20s
@ 8:27 you can hear Steve double-clutch the Mustang going from 2nd to 3rd and then again from 3rd to 4th. That Mustang is a 1968 390GT with a toploader 4spd transmission. Old american cars did not have great synchros in the transmissions and it was a bastard to get the inputs shaft and the gearset spinning at the same speed for smooth shifting on the high end. Craptons of torque will do that. This is accomplished by spinning the motor up in whatever gear, shifting to neutral and letting the clutch out while keeping the RPM's up, then quickly shifting into the next higher gear. It spins the shit out of the secondary gear set so it will match speed better with the input. It requires some skill and experience to get it right. I used to do this in my 5.0 swapped/toploader trans'd '66 Mustang.

You drive a miata, its not really an issue with a modern trans and our power levels.

^^ BTW: Not exactly a credible source for much of anything