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#1
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Need some street tips
Just wondering wat all this talk about double clutching and powershifting. are people watching F&F too many times? or could i actually learn the tricks of the trade and improve on street drag acceleration. also my friend and i have this arguement about downshifting ie: going 40 but need to slow down to 20 mph for a turn and still keep the rpms up to race out of the turn. sorry if i sound dumb. just wanted some imput.:bandit:
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2000 GsR Coupe skunk 2 short shift dc dac air intake greddy evo catback exhaust jdm front end |
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#2
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Powershifting:
Shifting without lifting off of the gas pedal. This is accomplished by stepping on the clutch while keeping your right foot on the gas pedal, in extremes floored, even. You must be VERY quick with this so you don't compromise your engine by bouncing-off the rev-limiter. This technique allows you to keep you're RPMs at your power-peak, but at the same time "slams" your clutch like you would in a drag take off...ouch. Use with caution. Double-clutching: The same principle as the powershift, except you are just basically "slamming" the clutch down but are NOT upshifting or downshifting. Useful for when you are in a top-speed race and have reached the limits of your top-end due to air-drag, but still have some RPMs left in your motor. Accomplished by stepping on the clutch AFTER it has engaged in gear, while keeping your right foot firmly planted on the gas pedal, then releasing the clutch, effectively "dropping" your clutch while your RPM's are high. This produces a slight "take-off" effect just like when you launch by dropping the clutch. Be warned, if you are slow, this motion WILL slow you down instead, because for a brief moment, the clutch will not be engaged, and you will be effectively coasting for this brief period. Use THIS with caution also...IF and WHEN your particular car needs it. Keeping the revs up while turning a corner: WILL make you exit the corner faster. This is called rev-matching. You are basically keeping your revs up in anticipation of releasing the clutch when you come out of the corner. This maneuver will keep your engine on the good side of the powerband, allowing for a quicker corner exit, as opposed to allowing your engine to rev down, and having to climb your powerband again. Be careful with this move on RWD, high-TQ cars...a spin-out is not fun when you weren't looking for one. One of the more popular and easiest ways of accomplishing this is with heel-toe shifting. This is done by stepping on the clutch as you brake for the turn, which is normal...what is different is you step on the brake pedal with the heel of your foot while keeping the upper part of your right foot on the gas pedal...not flooring it, which will just make your tires spin, but just keeping the revs up enough so you neither bog the engine or spin the tires. Takes some practicing, because you need to be able to do all this while concentrating on a turn. Do NOT practice this on city streets with traffic around. Also, if you crack any part of your car while doing this, it's not my fault...I warned you. Also, this maneuver is only mostly effective in sharp turns. On wide sweepers, you can just stay in second/third and lay on the gas, relying on your traction to hold you through. There you go...enough info for ya?
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2002_Nissan_Maxima_6-speed
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#3
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thats the last time i listen to talk to my friend about car driving techniques ........ O so thats what double clutchin is
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Qualified Automotive Engineer
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#4
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Quote:
You're in fourth gear and want to downshift into second gear. You press the clutch in and shift into neutral, at which point you let off of the clutch. You then use the accelerator to bring the engine speed up to where it needs to be for the lower gear. The clutch is then reengaged and you shift into the lower gear. What this does is reduce excessive wear on the transmissions synchronizers and also allows you to downshift without the car "jumping" like I'm sure most of you are used to.
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There's no replacement for displacement...No, not even a turbo. |
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#5
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Quote:
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There's no replacement for displacement...No, not even a turbo. |
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#6
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thankz guys
so guess powershifting if not nessesary nor good for the stock clutch tht i have. does double cluthing also induce excessive wear on my car?
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#7
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Re: thankz guys
Quote:
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There's no replacement for displacement...No, not even a turbo. |
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#8
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Basically all you need to do is shift fast. The traditional method works just fine and can be done as effectively as power shifting without the catastrophic impact on the clutch and trans. Just practice.
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More photos and Info/website! 1994 Cobra -off road h-pipe -superchips power chips -mac cold air induction -BBK aluminum underdrive pullies -pro-m 75mm bullet MAF -18" konig wheels with nitto 555 zr tires -Ford Racing 65mm throttlebody -Ford Racing king cobra clutch -Ford Racing 3:73 Gears -Ford Racing Aluminum driveshaft -Bullit suspension/ springs,shocks,struts -Aubrun HD limited slip Diff. 2002 subaru Impreza RS - stock 1989 Toyota pickup 4x4 -K&N
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#9
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¬
no wonder my clutch is acting funny.
:cry: |
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#10
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Quote:
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2002_Nissan_Maxima_6-speed
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#11
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Quote:
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There's no replacement for displacement...No, not even a turbo. |
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#12
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Quote:
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Qualified Automotive Engineer
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#13
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Match reving
From what i know isnt match reving part of down shifting? some people downshift simply by shifting to A lower gear then feathering the clutch to slow the car and the engine down, and yes its true that is u just shift to a lower gear and let the clutch out the car will jump forward and it can be kinda scary. but if you are going 40 for example. and want to slow down to 20 for a turn you should follow wat carnuttt says cause hes correct and thats the way i downshift. cruising in 3rd going 40 mph i shift to neutral "blip" the gas (hit the gas a little so rpms will be higher when you shift into second. then you can let go of the clutch faster and have much better acceleration out of the turn then without the blip on the gas peddle. if im wrong just correct me guys. remember im just a newbie and i am here to learn stuff from these post. not here to be a smart ass.
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#14
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Wait, it's always been my understanding that double clutching for acceleration died with the 70s. It used to be mandatory for a car to double clutch to shift gears. Now our engines are a little more advanced and we don't have to do that anymore. Am I correct? (lol, I'm confused now)
Forgive me if somebody already said that. I'm @work right now and only had time to fully read through the second or third post.
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Hung by a halo or stabbed by horns, sad to say; they're both the same |
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#15
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Quote:
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There's no replacement for displacement...No, not even a turbo. |
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