"Power Shifting"?
Thread Starter
Pro
Joined: Oct 2003
Posts: 641
Likes: 2
From: Storm lake Iowa
"Power Shifting"?
Sorry if this is a dumb question, but Norval and others have brought this up occasionally as a great way to trash a tranny.
What exactly IS power shifting? :confused:
-Roy
What exactly IS power shifting? :confused:
-Roy
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: "Power Shifting"? (Grinchia)
:eek: :eek: :eek: :eek:
...I would have never even considered doing something like that. Sounds like a BAD idea. Why would one be tempted to?
-Roy
...I would have never even considered doing something like that. Sounds like a BAD idea. Why would one be tempted to?
-Roy
There are people that launch at 6000 RPM and power shift every shift...
Pro
Joined: Mar 2002
Posts: 511
Likes: 0
From: St. Louis MO
Re: "Power Shifting"? (GrandSportC3)
actually powershifting is not using the clutch and letting up on the throttle just long enough to unload the tranny so you can jab it in the next gear. If you get it right you can smoothly shift from one gear to the next, miss it and you'll drop gears out the bottom.
Motorcycles and some atv's that still have manual boxes are capable of doing this as well, but are much more suited due to the design of the transmission.
Motorcycles and some atv's that still have manual boxes are capable of doing this as well, but are much more suited due to the design of the transmission.
Team Owner
Joined: Jul 1999
Posts: 26,545
Likes: 46
From: Huntersville NC
Re: "Power Shifting"? (442olds)
actually powershifting is not using the clutch and letting up on the throttle just long enough to unload the tranny so you can jab it in the next gear. If you get it right you can smoothly shift from one gear to the next, miss it and you'll drop gears out the bottom.
Motorcycles and some atv's that still have manual boxes are capable of doing this as well, but are much more suited due to the design of the transmission.
Motorcycles and some atv's that still have manual boxes are capable of doing this as well, but are much more suited due to the design of the transmission.
Instructor
Joined: Jan 2004
Posts: 152
Likes: 0
From: Wilmington nc
Re: "Power Shifting"? (MNJack)
I read a book on the how to's of racing, it described power shifting the same way as 442olds did. No clutch, ease off to unload trans with a little pressure on the stick, it will slip ouit of gear, roll back on with pressure on the stick and it will slip into the next gear.
I can get mine to slip out easy enough, but getting it to slip into the next is tough.
I can get mine to slip out easy enough, but getting it to slip into the next is tough.
Instructor
Joined: Jan 2004
Posts: 152
Likes: 0
From: Wilmington nc
Re: "Power Shifting"? (Blue70)
I think you guys might be thinking of speed shifting
Granny shift -- letting up on the gas for a sec while you shift
Speed shift -- no gas pedal lift at all during shifts
Power Shift -- shifting gears without useing the clutch
Granny shift -- letting up on the gas for a sec while you shift
Speed shift -- no gas pedal lift at all during shifts
Power Shift -- shifting gears without useing the clutch
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Instructor
Joined: Mar 2004
Posts: 188
Likes: 0
From: La porte Texas
Re: "Power Shifting"? (Blue70)
Powershifting is putting it on the deck,using the clutch, and rowing through the gears until you cross the stripe. If you try to hang gears clutchless w/o the proper sliders you will have a basket of parts soon. In my SS/DM when I ran a 5 speed , in the water box I kept the motor at about 9000rpm but had to leave it 3rd gear because it wasn't a clutchless. Left the line at 9000 and shifted at approx. 9400-9500(powershifting) and it crossed at 9700-9800. On my old big block vette I shift around 5400 (but not often) Once you start powershifting it's too much fun to stop !!
Melting Slicks
Joined: Jul 2003
Posts: 3,215
Likes: 45
From: Pomfret, CT
Finalist 2020 C4 of the Year - Unmodified
Re: "Power Shifting"? (Brent Brooking)
Powershifting is putting it on the deck,using the clutch, and rowing through the gears until you cross the stripe.
If you shift fast enough....which is the object of power shifting.....it will NOT do any damage to your tranny. Power shifting is the only way to go in a race situation.
Power shifting is NOT shifting without the clutch as some have said here. Shifting withoug the clutch is clutchless shifting and very hard to do....if even possible at all without the correct tranny set up. Not advisable to try. Unless you need a new tranny!
Go for it and good luck! You will like power shifting a LOT. You have to be an ANIMAL and drive it like you hate it!
-Rick
[Modified by cicch95, 2:49 PM 3/27/2004]
Team Owner
Joined: Nov 1999
Posts: 26,679
Likes: 17
From: This vette goes to 11 Milford MA
St. Jude Donor '03-'05
Re: "Power Shifting"? (cicch95)
On the last amber, my right foot meets the firewall and doesn't lift until the win light comes on.:). The left one stabs for a split second each time the tach sweeps to redline.
Thread Starter
Pro
Joined: Oct 2003
Posts: 641
Likes: 2
From: Storm lake Iowa
Re: "Power Shifting"? (Grinchia)
Not a whole lot of agreement going on here...I just did a quick google search and came up with this site:
http://www.fordmuscle.com/archives/2...ft/index.shtml
...sorry, it's about F*** drag racing, but if this guy knows what he's talking about then I guess I have my answer.
-Roy
http://www.fordmuscle.com/archives/2...ft/index.shtml
...sorry, it's about F*** drag racing, but if this guy knows what he's talking about then I guess I have my answer.
-Roy
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: "Power Shifting"? (Grinchia)
Not a whole lot of agreement going on here...I just did a quick google search and came up with this site:
http://www.fordmuscle.com/archives/2...ft/index.shtml
...sorry, it's about F*** drag racing, but if this guy knows what he's talking about then I guess I have my answer.
-Roy
http://www.fordmuscle.com/archives/2...ft/index.shtml
...sorry, it's about F*** drag racing, but if this guy knows what he's talking about then I guess I have my answer.
-Roy
Very accurate!! :yesnod: :yesnod:
For those who are planning to power-shift - I recommend to upgrade your clutch before doing it.. It's very tough on the equipment!
Instructor
Joined: Jan 2004
Posts: 152
Likes: 0
From: Wilmington nc
Re: "Power Shifting"? (Grinchia)
I only know to call it what I've read or heard..I who knows?? :rolleyes:
On turbocharged vehicles, keeping you're foot on the gas during the shift ( which must be done quickly) improves you're ET dramatically. It maintains boost pressure in the intake manifold thus giving you more to start with in each higher gear. The difference from "Speed Shifting", what this style of driving has become labeled as, and regular driving can mean as much as half a second and up to 5 MPH in you're trap in mildly turbocharged vehicles.
Above taken form here
http://www.se-r.net/car_info/fwd_launch_tips.html
I guess it's all in who you ask.
I may not know for sure what to call it...but I sure know how to drive it :steering:
Oh ya...That was a good article :)
[Modified by Blue70, 7:41 PM 3/27/2004]
On turbocharged vehicles, keeping you're foot on the gas during the shift ( which must be done quickly) improves you're ET dramatically. It maintains boost pressure in the intake manifold thus giving you more to start with in each higher gear. The difference from "Speed Shifting", what this style of driving has become labeled as, and regular driving can mean as much as half a second and up to 5 MPH in you're trap in mildly turbocharged vehicles.
Above taken form here
http://www.se-r.net/car_info/fwd_launch_tips.html
I guess it's all in who you ask.
I may not know for sure what to call it...but I sure know how to drive it :steering:
Oh ya...That was a good article :)
[Modified by Blue70, 7:41 PM 3/27/2004]
Race Director
Joined: Apr 1999
Posts: 11,520
Likes: 13
From: CORVETTE 77 385 C.I. TEXAS
Re: "Power Shifting"? (Blue70)
Power Shifting is as it sounds Shifting w/ Full Power- Power Shifting.
Some guys lose trans. & engines.
Pedal to the metal until it's over.
Power Shifting works for me.
:cool:
We have covered this before.
Some guys lose trans. & engines.
Pedal to the metal until it's over.
Power Shifting works for me.
:cool:
We have covered this before.
Melting Slicks
Joined: Jul 2002
Posts: 3,128
Likes: 3
From: Deltona (son of Deland and DAYTONA) FL
Re: "Power Shifting"? (Grinchia)
I've just learned something different from what I've been taught. I was taught that powershifting did not use the clutch while speed shifting did, both at W.O.T.
But here is a link on the NHRA site that shows that the clutch IS used, but only just enough to make the shift.
http://www.nhra.com/50th/top50/R_Sox15.html
[Modified by isosceles, 4:29 PM 3/28/2004]
But here is a link on the NHRA site that shows that the clutch IS used, but only just enough to make the shift.
http://www.nhra.com/50th/top50/R_Sox15.html
[Modified by isosceles, 4:29 PM 3/28/2004]
Instructor
Joined: Mar 2004
Posts: 188
Likes: 0
From: La porte Texas
Re: "Power Shifting"? (isosceles)
Exactly ! Adjust just enough air gap in the clutch to keep the pedal movement to a minimal. A lot of it depends on your foot to hand cordination .Also you can adjust some of your reaction time on the tree with air gap. Some even run an adjustable stop under the pedal .Speed shifting is lifting on the gas each time you shift (although quickly) but each time the engine has to recover as opposed to keeping it on the deck. Missing a gear while power shifting can bend and break stuff .
Melting Slicks
Joined: Feb 2004
Posts: 2,435
Likes: 0
From: largo florida
Re: "Power Shifting"? (turtlevette)
Hmm... take a vote? I dont see how voting would work. If your wrong, your wrong. If 99% of people agree on something that is wrong, it is still wrong.