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nub
Dodge Dakota
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2/02/2005
15:40:31
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 Subject: powershifting
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alright im alittle bit confused about power shifting. isnt it when you change gears without using the clutch, because some people think its when you skip a gear
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Joe M.
Dodge Dakota
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2/02/2005
15:45:22
|  RE: powershifting
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skip a gear?
no idea why anyone would want to do that
RPM's would drop and a big loss of tourqe
and yes power shifting is shifting without the clutch
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daddio
Dodge Dakota
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2/02/2005
16:00:01
| RE: powershifting
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i guess it depends when and where. all i've ever known:
power/speed shifting - shifting while keeping the engine rpm's up. good for racing, bad for the drivetrain.
skipping a gear is skipping a gear. i do it all the time. sometimes i start off in 2nd, somtimes i wind up 3rd and skip 4th.
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Joe Blow
Dodge Dakota
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2/02/2005
17:56:03
| RE: powershifting
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I always thought power shifting was when you have the gas to the floor, stabbing the clutch without lifting on the gas, shifting really quick and then releaseing the clutch. The clutch and the shift are done at almost the exact same time.
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Bob Lincoln
Dodge Dakota
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2/02/2005
18:07:53
| RE: powershifting
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Nope, that's just abuse of the vehicle and the occupants' necks.
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GB2000
GenIII
2/02/2005
18:24:02
| RE: powershifting
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LOL Bob!
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Crow318
Dodge Dakota
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2/03/2005
09:28:20
| RE: powershifting
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Jow Blow is right.
It is shifting without letting off the gas.
Good luck doing it Joe M.'s way. It can be done if you match rpm and speed to the next gear (the syncro's help too), but you can hardly call it "Power shifting"
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GB2000
GenIII
2/03/2005
09:50:01
| RE: powershifting
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From what I've heard before, it's shifting without the clutch...which I guess to match the rpm's of the next gear, you prolly wouldn't wanna let off the gas either...but I have no clue personally since I've driven a stick like twice in my life. Time for me to learn! lol
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93dak4x4
Dodge Dakota
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2/03/2005
10:00:36
| RE: powershifting
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powershifting you would not use the clutch, you let off the gas during the shift and then put your foot back in it. this eliminates the need to try and match rpm and reduces the time of this shift, but it is bad for the drive train
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GB2000
GenIII
2/03/2005
10:54:49
| RE: powershifting
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lol...yeah, my friend tried to do it in his car and gave up when he ground the gears to hell. He decided it was worth the extra time to just use the clutch.
Josh
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Crow318
Dodge Dakota
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2/03/2005
12:12:37
| RE: powershifting
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As Jow Blow and I said, Power shifting = Gas pedal to the floor, use the clutch to shift
http://www.ls1.com/index_faq.html#110
Read that.
or do a general search for powershifting. You will come up with the same thing every time, unless you look here. People are mis-informed here.
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duh
Dodge Dakota
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2/03/2005
12:18:20
| RE: powershifting
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ooo oooo ooo, here is another
http://www.fordmuscle.com/archives/2002/03/powershift/index.shtml
Looks like the ford guys know as much as the chevy guys.
Next time, know before you post. Don't spread your ignorance!!
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Bob Lincoln
Dodge Dakota
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2/03/2005
12:41:47
| RE: powershifting
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http://www.automotivehelper.com/topic75382.htm
http://forums.stangnet.com/archive/index.php/t-424908.html
Two different techniques, referred to by the same name. I have heard the name applied to the technique of shifting without using the clutch, just matching engine RPMs sufficiently so as to be able to slam quickly into the next gear. Properly done, there is no grinding and no power loss, and it's as quick or quicker than an automatic shift. Former colleagues of mine on the fire dept drove this way all the time with no issues. It was magic watching them manipulate the throttle and then suddenly slam the lever into the next gear with barely any change in engine pitch during the shift. I believe this technique works better with an unsynchronized transmission, which is why it can be fatal to today's cars and trucks.
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daddio
Dodge Dakota
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2/03/2005
13:50:06
| RE: powershifting
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bob, it's the other way around. the synchro's make it possible to change gears without the clutch. i learned to drive on a '65 Opel Kadett. believe me there is know way i could have shifted with the clutch in that thing like i can all day in my dak. although the nv3500 isn't the easiest trans to do it with. the Borg Warner T5 i used to have was much easier.
all i do in my dak is as soon as i let off the gas, pull the shift to the next gear and when engine rpm's drop to where they need to be it will pop right in gear. it does take a little practice. i been driving a stick for about 30 yrs now.
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GB2000
GenIII
2/03/2005
16:20:38
| RE: powershifting
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Yeah, I just did some searching...looks like there are different ways of "powershifting." One consists of keeping on the gas and stabbing the clutch really fast during a shift without ever letting off...which has got to be murder on the drivetrain.
The other is like some of us were also thinking, letting off the gas and matching the rpm's of the next shift and shifting without using the clutch...which prolly is no more harmful on a drivetrain than using the clutch (when done right).
Just my extra $.02...don't spend it all in one place...
Josh
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IntenseDak39
*GenIII*
2/03/2005
16:29:15
| RE: powershifting
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why would you powershift? not specifically to any person here, but why??
if anybody thinks the only way they are gonna win a race is to powershift, they need to use the money they would soon need to be investing in the drivetrain, and put it into some real performance options.
new clutch would cost you probably $500-700 installed... same price as a nitrous kit.. and you'll get better results with it
new transmission and install would probably run you $1500-2000... for a little more, you could probably do a low budget V8 swap and have better end results...
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Bob Lincoln
Dodge Dakota
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2/03/2005
22:27:46
| RE: powershifting
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Well, the 2nd technique, as I said, came in handy on the fire dept. The trannies were NOT synchronized, contrary to what Daddio implied, and had to be double-clutched otherwise. So it was faster, easier, less distracting to the driver to shift without clutching it. Seconds count, and if you've ever driven a fire truck, the pedal arrangement is not nearly as comfortable as a car, especially when wearing fire boots.
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nick
Dodge Dakota
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2/03/2005
23:43:06
| RE: powershifting
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Double clutching?
Please explain.
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Bob Lincoln
Dodge Dakota
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2/04/2005
08:00:41
| RE: powershifting
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Double-clutching is a technique that is usually necessary for unsynchronized transmissions to prevent grinding or even to be able to move the lever into the next gear. You press the clutch, shift into neutral, try to match the engine RPMs to the next gear while you release the clutch, then press the clutch again and shift from neutral into the next gear.
You press the clutch twice for each shift, hence, double-clutching.
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87DakBuilder
Dodge Dakota
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2/06/2005
06:59:03
| RE: powershifting
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Yup Bob is right about double clutchin, it is a royal pain in the arse. I have a 1970 fiat 500, and it had a unsyncronized tranny. Had to double clutch, I quickly had the changed. As for power shifting, I know this has been beaten to death, but I was always told it is keeping the go pedal floored, engauging the clutch enough to change gears as fast as posible. If done correctly, the torque will always be at the wheels. Done improperly, and you will definately be replacing, ujoints, drive shaft or other drive train parts. I've done it twice in my 87, and it really didn't make a difference. Just giving my .02 best of luck with it gents.
Jay
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fmxguy
Dodge Dakota
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2/07/2005
00:50:19
|  RE: powershifting
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I race motorcycles, and "powershifting" is what we call it whenever you are (for instance) in fifth gear at 8,000 rpm's and you need 12,000 rpm's for max. horsepower, so you would shift down a gear to increase your rpm's thus increasing HP. confusing enough?
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