Granny shifting?
Thread Starter
Instructor
Joined: Mar 2006
Posts: 247
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From: Clarksville Maryland
Granny shifting?
Excuse this rookie question, but can someone explain granny shifting to me and what are the alternatives? I've tracked automatics in the past (point and shoot). Is granny shifting just doing a regular shift, and the alternative is speed shifting (i.e., don't use the clutch).
Racer
Joined: Feb 2004
Posts: 365
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From: East Brunswick NJ
Originally Posted by JD21029
Excuse this rookie question, but can someone explain granny shifting to me and what are the alternatives? I've tracked automatics in the past (point and shoot). Is granny shifting just doing a regular shift, and the alternative is speed shifting (i.e., don't use the clutch).
Granny shifting would involve taking your foot partially or completely off the throttle pedal wile engaging the clutch on a shift.
I have never heard of anyone not using the clutch at all going down a 1/4mi with a t56 and had it live more then that one pass LOL
The alternative is "power shifting” Having your right foot planted in the throttle, pushing it into the floor board wile taping the clutch just enough to allow it to disengage the current gear and engage the next, quite quickly as well. It's difficult to explain, but with practice it’s not difficult to do. That is how I get my car down the track.
Hope that helped.
Alex
Le Mans Master
Joined: Jun 2003
Posts: 9,251
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From: 2007 Nat'l Corvette Challenge 11.50 index Champ. New Jersey
Granny shifting to me is just shifting slowly, as if you're out for a cruise on the street. Also, shifting not at red line, like you should be when racing.
Ron
Ron
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From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
Cental/South NJ Events Coordinator
CI 1-2-3-4-5-6-7-8-9-10-11-12 Vet
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St. Jude Donor '03-'04-'05-'06-'07
I don't think there was a Corvette made(or any other production car besides a few pick up trucks) that could be shifted without using the clutch. You'd be grinding the hell out of the gears.
Now guys with Lenco's and such can do it like this guy:
http://temp.corvetteforum.net/c4/mrm...gdchevelle.wmv
Now guys with Lenco's and such can do it like this guy:
http://temp.corvetteforum.net/c4/mrm...gdchevelle.wmv
Team Owner
Joined: May 2003
Posts: 23,480
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From: East Meadow NY
St. Jude Donor '12
Originally Posted by LS1LT1
"Granny shifting, not double clutching like you should..."
The prerequisite 'The Fast and The Furious' quote that has to be mentioned any time granny shifting comes up LOL.
The prerequisite 'The Fast and The Furious' quote that has to be mentioned any time granny shifting comes up LOL.
Team Owner
Joined: Aug 2003
Posts: 38,314
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"Granny shiftin' not double clutchin' like you should. You're lucky that hundred shot of NOS didn't blow the welds on the intake! Now me and the mad scientist gotta rip apart the block, and replace the piston rings you fried."
Double clutchin' "like you should."
Double clutchin' "like you should."
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Le Mans Master
Joined: May 2003
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From: Orange County California
Originally Posted by LS1LT1
"Granny shifting, not double clutching like you should..."
The prerequisite 'The Fast and The Furious' quote that has to be mentioned any time granny shifting comes up LOL.
The prerequisite 'The Fast and The Furious' quote that has to be mentioned any time granny shifting comes up LOL.
Safety Car
Joined: Jul 2002
Posts: 3,529
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From: Rehoboth MA
Granny Shifting- Not shifting fast and not running each gear to the redline. Basically, like you're afraid to really drive it. Hence, the term granny shifting.
Power Shifting- Right foot stays glued to the floor w/slight and brief engagement of clutch to change gears. A good powershift is where engagement of clutch occurs at the precise moment right before the shifter is in the gate for the next gear. It's really a fluid motion. It's tough for me to explain it, but it'd be easier to show you if I was sitting in the car. This is something that I'd only attempt after alot of experience in a car, because it does not feel or sound to good to mess up. This method will wear parts out a little faster, but will gain you some ET.
Speed shifting- You're lifting off the gas during your shifts, as the throttle comes up the clutch goes in, you move the shifter to the next gear, then as you lift the clutch, you mash the throttle. You run each gear to it's peak and you do this as fast as you possibly can. This is this most common method.
Clutchless shifting- Pretty much self explanatory. Is a no-no with a T56 unless you have a trailer with a winch on it.
Power Shifting- Right foot stays glued to the floor w/slight and brief engagement of clutch to change gears. A good powershift is where engagement of clutch occurs at the precise moment right before the shifter is in the gate for the next gear. It's really a fluid motion. It's tough for me to explain it, but it'd be easier to show you if I was sitting in the car. This is something that I'd only attempt after alot of experience in a car, because it does not feel or sound to good to mess up. This method will wear parts out a little faster, but will gain you some ET.
Speed shifting- You're lifting off the gas during your shifts, as the throttle comes up the clutch goes in, you move the shifter to the next gear, then as you lift the clutch, you mash the throttle. You run each gear to it's peak and you do this as fast as you possibly can. This is this most common method.
Clutchless shifting- Pretty much self explanatory. Is a no-no with a T56 unless you have a trailer with a winch on it.
Le Mans Master
Joined: Jun 2003
Posts: 9,251
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From: 2007 Nat'l Corvette Challenge 11.50 index Champ. New Jersey
I had to drive my car after the clutch blew up, thus, without using the clutch. You just need to rev match & ease the shifter into each gear. It is doable, but not a good idea.
