what exactly is double clutching? i know its used mainly to slow down the engine a bit before shifting but is it of any use in newer transmissions with synchronizers? Sorry, just watched the fast and furious and it got me thinking.

Double clutching means pressing the clutch, going to neutral, releasing clutch, pressing clutch again, going to the next gear, then releasing the clutch. It is mainly used on big trucks to match the rpm's for the correct gear. Useless in a passenger car.

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86 SE 4 Speed 2.8 "The Short Bus"



88 Coupe 4.9 "Hibernating"

Don't forget to "Blip the Throttle" while in neutral.

The idea is to match up the non syncronized gears to the same shaft speed, to get them to mesh, not grind.

Plus it sounds cool, when the engine rev's.

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Marko.

'85 SE 2M6

If you dident double clutch in my old crane truck you wernt going anywhere. Damn thing used to grind gears all the time it was loud to everyone would look at you like you were a total a**hole because it sounded scarey and loud.

Doulble-clutching is an old technique that takes a little practice to master. My father, who used to build racecars and race old Coopers, taught me how to heel/toe-double clutch downshift (putting toe on the brake, revving the engine twice, and downshifting.) I practiced it so long and became so quick at it that I still use it to this day, even though it is not really necessary. It makes driving a stick-shift a little more fun and challenging.
Most Italian cars have a curved gas pedal to facilitate this type of shifting. Some manufacturers, like a lot of German cars, are the opposite (toe/heel).

REAL double clutching is clutch, netural, clutch, next gear.

The F&F double clutching is garbage, they are doing it as hondas have no power untill HIGH rpm, so they push in the clutch to get the engine to jump up in rpm and slam it in again. over and over. thinking it will get them more power to launch the car. LMFAO stupid ricers

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"DRIVE IT LIKE A FIERO"
'84 Fiero, engine to be determined
'87Blue GT 3.4L Swap Completed!!!!!!!! Boosted!!!!!!!
Las Vegas Fiero Club
Fiero Road Club Of Northern Nevada

quote Originally posted by sardonyx247: REAL double clutching is clutch, netural, clutch, next gear. The F&F double clutching is garbage, they are doing it as hondas have no power untill HIGH rpm, so they push in the clutch to get the engine to jump up in rpm and slam it in again. over and over. thinking it will get them more power to launch the car. LMFAO stupid ricers

There is not much that is "real" on any of the F&F!

For me, when you guy's say double clutching - it takes me back to my first ride. A 1953 Chevy truck with a straight six and a 4 spd with granny gear. The ball and fork of the shifter was wore out so you never new what gear you were in. It was kind of a "feel" thing. But there was also a lot of double , triple, quadruple, etc. shifting going on. It was really tough after a "night out".

If you really want to teach yourself something, teach yourself to shift without the clutch. Its so natural to me, that Once I get going in my 88GT I seldom use the clutch, unless I am driving it real hard and time have time to rev match each shift. You can upshift fairly easy, the downshift is a bit more tricky. The simplest way to get started is start out in first, lift of the throttle just enough that it unloads the gears in the trans and gently pull it out of 1st and let it slip into 2nd nice and gently. When you are down shirting from say 5th to 4th, you want to give the gas pedal a blip to bring the revs up as you drop down a gear. The trick is to have no load on the gears as you move to the next higher or lower gear. I use to have a video demonstrating the processes. Its not that I am doing it because I think it is Better or Cool. Its just a more comfortable way to drive when you are relaxed. Maybe I got good at it just because I am too lazy to use the clutch all the time. In my 77 Capri with a 4spd Stick, (yes young-ens, 4spd use to mean stick shift not 4spd automatics) Even when using the clutch it shifted much better rev matching each gear. Come to think of it, my dad had a 3 on the tree stick shift in his 62 pickup. Man that was a bugger to drive until you got used to it.

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85GT Soon to be 87GT,93 Eldorado 4.9, 5spd Dual O2 Custom Chip, Custom Exhaust. MSD Everything Capt Fiero --- My Over View Cadero Pics Yellow 88GT 5spd Full Poly Suspension, Lowered 1/2" in front, Corner Carver.

quote Originally posted by Capt Fiero: Its not that I am doing it because I think it is Better or Cool. Its just a more comfortable way to drive when you are relaxed. Maybe I got good at it just because I am too lazy to use the clutch all the time.

i hear ya. i do this all the time in my saturn. damn clutch is just too much work. had an old neon that i could get started on a level surface without the clutch. if u pushed hard enough on the shifter into 1st it would make the car start to roll and eventually pop into gear. horrible i know, but you need to understand the relationship i had with that car...

how do you get into 1st from N?
most of the time i never use the clutch in my old jeep on the road.
but i havnt figure out how to get into 1st from N. iv played around abit trying to figure out how but i end up just giving up and push in the clutch and go from there.

The Fast and The Furious http://www.imdb.com/title/tt0232500/goofs
2 Fast 2 Furious http://www.imdb.com/title/tt0322259/goofs
Tokyo Drift http://www.imdb.com/title/tt0463985/goofs

thing i notice in the films are that they like to drink coronas.
i saw the new movie that came out and there still drinking the coronas.

I drive all the time without the clutch the only time I use it is when I Stop. I learned that driving Trucks and still use it.
I hate double clutching too much like work.
F&F is what you get when people make movies without tech advisors that know what the hell they are talking about

quote Originally posted by joshh44: the charger doing a wheelie? on the street? i wouldnt think it would be possible for slicks to hook up on a non prep track and with out doing a burnout to heat up the tires. sorry. im ranting about the movie. ill stop... haha

In Quenns New York, Illegal drag racing was popular at one time on a road called North conduit ave. That is the first place and time I saw a camaro do a street wheelstand on slicks and without a burnout. Cars were backed of the trailer and only started seconds before the actual race . Once the race was over the cars were put immediately on the trailer and removed so the next pair could run. It kept the noise to a minimum so a couple of races could run before the police showed up. Wheel stands did occur and if I remember correctly , an out of controll wheel stand resulted in a woman being killed.

quote Originally posted by Capt Fiero: If you really want to teach yourself something, teach yourself to shift without the clutch. Its so natural to me, that Once I get going in my 88GT I seldom use the clutch, unless I am driving it real hard and time have time to rev match each shift. You can upshift fairly easy, the downshift is a bit more tricky. The simplest way to get started is start out in first, lift of the throttle just enough that it unloads the gears in the trans and gently pull it out of 1st and let it slip into 2nd nice and gently. When you are down shirting from say 5th to 4th, you want to give the gas pedal a blip to bring the revs up as you drop down a gear. The trick is to have no load on the gears as you move to the next higher or lower gear. I use to have a video demonstrating the processes. Its not that I am doing it because I think it is Better or Cool. Its just a more comfortable way to drive when you are relaxed. Maybe I got good at it just because I am too lazy to use the clutch all the time. In my 77 Capri with a 4spd Stick, (yes young-ens, 4spd use to mean stick shift not 4spd automatics) Even when using the clutch it shifted much better rev matching each gear. Come to think of it, my dad had a 3 on the tree stick shift in his 62 pickup. Man that was a bugger to drive until you got used to it.

Keep in mind. On cars with synchro's, one tends to use the synchro's then to do the clutches job. Wears them out faster. It's really hard to match a shift perfectly on a angle cut, synchronized transmission.

I filled my Isuzu transmission with Synchromesh, but on cold brrrr December days, before the transmission warms up, double clutching is the only way to engage a gear at all.

Steve McQueen did a lot of double-clutching in the movie Bullitt.

Kit

quote Originally posted by Capt Fiero: If you really want to teach yourself something, teach yourself to shift without the clutch. Its so natural to me, that Once I get going in my 88GT I seldom use the clutch, unless I am driving it real hard and time have time to rev match each shift. You can upshift fairly easy, the downshift is a bit more tricky. The simplest way to get started is start out in first, lift of the throttle just enough that it unloads the gears in the trans and gently pull it out of 1st and let it slip into 2nd nice and gently. When you are down shirting from say 5th to 4th, you want to give the gas pedal a blip to bring the revs up as you drop down a gear. The trick is to have no load on the gears as you move to the next higher or lower gear. I use to have a video demonstrating the processes. Its not that I am doing it because I think it is Better or Cool. Its just a more comfortable way to drive when you are relaxed. Maybe I got good at it just because I am too lazy to use the clutch all the time. In my 77 Capri with a 4spd Stick, (yes young-ens, 4spd use to mean stick shift not 4spd automatics) Even when using the clutch it shifted much better rev matching each gear. Come to think of it, my dad had a 3 on the tree stick shift in his 62 pickup. Man that was a bugger to drive until you got used to it.

And that doesn't eat gears??

quote Originally posted by Capt Fiero: If you really want to teach yourself something, teach yourself to shift without the clutch.

I'm sorry, I hate to contradict someone, but you should never shift without the clutch using a synchronized transmission (even more so for inexperienced drivers). You may get the trans to shift smoothly but the synchros are giving you a false sense that your doing it correctly. I don't care how good of a shifter you are you can't possibly match the engine speed perfectly everytime, especially downshifting. I promise you the lack of clutch use will wear out your synchros and they are much harder to replace. The clutch is there for a reason so why abuse the synchros. Double clutch downshifting (ie: clutch in, pull out of high gear, clutch out, match engine revs, clutch in, put in lower gear, clutch out) is one of the quickest ways to downshift with some practice.

[This message has been edited by ClayTonto (edited 04-11-2009).]

quote Originally posted by Capt Fiero: Our Crane truck had a 5spd stick with a splitter, The damn engine was a Big Block on Propane, absolutely gutless. If I remember correctly it was an old Allison trans. If you did not double clutch each shift and BE DAMN SURE TO HAVE THE CLUTCH IN, when you hit the splitter or the rear end would Growl and Howl and Grind like a banshee. I hated driving that Tank. You needed to be in double low to even get moving, double high was only used for coasting down hills, because you couldn't even maintain highway speed in double high, you had to be in Low Range, High Gear, and foot planted to the floor to maintain 50mph.

This will sound picky, but the Allison is a fully automatic transmission, so your rig must've been equipped with something else. I gave you a plus for the clutchless shifting post...excellent post on a technique that almost never comes up.

[This message has been edited by jazz4cash (edited 04-11-2009).]