Shifting techniques. Which is "best"?
05-31-2011, 03:59 PM
#1
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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?
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?
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05-31-2011, 04:04 PM
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You need to get a heavier shift ****. 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 ****.
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05-31-2011, 04:34 PM
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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 **** 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 ***** on the tranny?
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05-31-2011, 04:38 PM
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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.
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05-31-2011, 06:19 PM
#11
probably anywhere from 40 to 140
voodoo
james barone - http://jamesbaroneracing.com/Shift_Knobs/5SPD/index.htm
twm
and anything in between
voodoo
james barone - http://jamesbaroneracing.com/Shift_Knobs/5SPD/index.htm
twm
and anything in between
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05-31-2011, 06:24 PM
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05-31-2011, 06:41 PM
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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?
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?
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05-31-2011, 07:41 PM
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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 **** 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
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 **** 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
Last edited by EO2K; 05-31-2011 at 08:29 PM.
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