Speed Shifting
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Got traction?
Joined: Jan 2001
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Originally posted by "solo_mata_me"
Allow me to quote myself.
Allow me to quote myself.
Originally Posted by solo_mata_me
I like my CRX. It is no tire screaming torque monster, yet that is not what it is supposed to be. I've had 2 400+whp Mustangs, one even set up for cornering. However, all they really seemed to excel at was straight line. It gets boring after a while and only so much skill is involved (once you have mastered your car, how it launches and how to properly powershift [no clutch], it gets dull). The little CRX I have now is perfectly suited for what I want and need right now. It gets phenominal gas mileage, has a decent power to weight ratio and handles like it is on rails. Even after all of that, it looks good...which can't be said about alot of modified imports (and alot of domestic cars lately as well). What is the biggest reason I like it? To quote John Gadd, "We don't build imports because they are easy, we build them because they are a challenge."
I am not going to try to convince anyone here that either side is best, just buy what you want and screw everyone else. If someone wants to convince me to like/want a GM product, then they can go ahead and buy one for me. Just like a Jehova's witness, most people practically go door to door trying to tell everyone why their side is best. Let them decide for themselves and stop ragging on people because their tastes in automobiles differs from yours.
Nuff said.
I am not going to try to convince anyone here that either side is best, just buy what you want and screw everyone else. If someone wants to convince me to like/want a GM product, then they can go ahead and buy one for me. Just like a Jehova's witness, most people practically go door to door trying to tell everyone why their side is best. Let them decide for themselves and stop ragging on people because their tastes in automobiles differs from yours.
Nuff said.
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98' cobra
98' cobra
boostmonkey
Joined: Jun 2000
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That is speed shifting. I refuse to believe that you have not ever heard of shifting without the clutch. Tony (now flies w/USAF) and I used to do this all the time with the ACE autoparts trucks to perfect our techniques. We'd use the clutch to get off the line and that was it. It is all about timing and knowledge of the transmission/engine.
Granted, the transmissions you listed were designed to be shifted w/o a clutch, but experiance with other transmissions tells me that other transmissions than the ones you listed can be shifted without the clutch.
Anyway, back on subject.
Granted, the transmissions you listed were designed to be shifted w/o a clutch, but experiance with other transmissions tells me that other transmissions than the ones you listed can be shifted without the clutch.
Anyway, back on subject.
Thread Starter
Got traction?
Joined: Jan 2001
Posts: 2,145
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Sorry Craig but I have heard of it but never met anyone or seen it done. Yes I can put my tranny into gear without the clutch if I find a certain rpm that the syncro's allow me to put it into gear, HOWEVER, 100% of the time it is done at low rpms. The syncros are there for a reason, if they are spinning that means u can't line up the next cluster of gears without slowing down the syncro on the next gear shift. So at 5k or 7k(whatever is your shiftpoint is) I'm sure that is too high for a measly POS 5spd to shift if the clutch isn't used. Even if you tried to take the car out of gear any a high rpm it won't let u. Sorry I know u know alot about cars but I disagree.
-Back on subject. -Mark
-Back on subject.
-Mark
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98' cobra
98' cobra
Wherever I may roam...
Joined: Mar 2001
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It is quite possible, all you have to do is rev match for the next gear.
Daddy-O
Joined: Aug 2001
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it's possible to do yes, but the trans won't last all that long.
powershifting and speed shifting are basically the same thing, just different descriptions.
best way to work it is to side step or kick the clutch, just touch it enough...
takes a LOT of practice... but who am I kidding... we all know that drag racing takes less skill than auto-x...
powershifting and speed shifting are basically the same thing, just different descriptions.
best way to work it is to side step or kick the clutch, just touch it enough...
takes a LOT of practice... but who am I kidding... we all know that drag racing takes less skill than auto-x...
Rod Bearing Eater
Joined: Apr 2002
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I agree with Walter its called rev matching not power shifting. Its not all that great for the average street trans. Racing trans have straight cut gears for this reason. And logically it doesn't make your upshifting any faster because you have to let the engine speed drop to get the gears to mesh. Might as well clutch it and save your trans.
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Patrick
05 SRT-4: Daily Driver, 11.9@117.4
88 Aries: 2.2L Turbo (Powered by Megasquirt II)
Patrick
05 SRT-4: Daily Driver, 11.9@117.4
88 Aries: 2.2L Turbo (Powered by Megasquirt II)
Shake n' Bake
Joined: May 2001
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shifting without using the clutch wont mess up your tranny,i know cause my freind only drives like that and has been driving like that for 4 years and never had a tranny problem. i have done it every now and then but i use the clutch out of habit and quickness
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insert witty retort here
Joined: Aug 2002
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Originally posted by "solo_mata_me"
That is speed shifting. I refuse to believe that you have not ever heard of shifting without the clutch. Tony (now flies w/USAF) and I used to do this all the time with the ACE autoparts trucks to perfect our techniques. We'd use the clutch to get off the line and that was it. It is all about timing and knowledge of the transmission/engine.
Granted, the transmissions you listed were designed to be shifted w/o a clutch, but experiance with other transmissions tells me that other transmissions than the ones you listed can be shifted without the clutch.
Anyway, back on subject.
That is speed shifting. I refuse to believe that you have not ever heard of shifting without the clutch. Tony (now flies w/USAF) and I used to do this all the time with the ACE autoparts trucks to perfect our techniques. We'd use the clutch to get off the line and that was it. It is all about timing and knowledge of the transmission/engine.
Granted, the transmissions you listed were designed to be shifted w/o a clutch, but experiance with other transmissions tells me that other transmissions than the ones you listed can be shifted without the clutch.
Anyway, back on subject.
speed shifting is what you do when power shifting results in wheelspin in the next gear.
what you are talking about is clutchless shifting and i would think its not really wise practice in drag racing since you have to wait for the revs to drop before you put the car in the next gear. (else you wanna destroy the synchromesh).
in a non-synchronized racing transmission (purpose built race car), clutchless shifts are used to extend the life of the gearbox and clutch.
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Shawn
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The answer to your question is sqrt(pi)
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The answer to your question is sqrt(pi)
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Originally posted by "mpbiv"
I agree with Walter its called rev matching not power shifting. Its not all that great for the average street trans. Racing trans have straight cut gears for this reason. And logically it doesn't make your upshifting any faster because you have to let the engine speed drop to get the gears to mesh. Might as well clutch it and save your trans.
I agree with Walter its called rev matching not power shifting. Its not all that great for the average street trans. Racing trans have straight cut gears for this reason. And logically it doesn't make your upshifting any faster because you have to let the engine speed drop to get the gears to mesh. Might as well clutch it and save your trans.
And I CAN upshift faster when doing this w/o having to let the r.p.m's fall.
Call it luck I guess....
Daddy-O
Joined: Aug 2001
Posts: 3,300
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it's all symantics at this point..
see I don't speed shift/power shift/clutchless shift/shift with my eyes closed, etc
I just click it into the next gear at 8k...
Just wait until I get my G-force 5spd...
see I don't speed shift/power shift/clutchless shift/shift with my eyes closed, etc
I just click it into the next gear at 8k...
Just wait until I get my G-force 5spd...
