whats it mean to double clutch?
08-31-2003, 05:11 PM
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whats it mean to double clutch?
Can any one tell me what it means to double clutch? i saw the term in the 1st gear thread and remember hearing it in a movie. what is it?
08-31-2003, 05:13 PM
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Re: whats it mean to double clutch? (faultofhumanity)
what movie did you hear it from?
and search! trust me, you will find it.
clutch in
clutch out
clutch in, shift to gear,
clutch out
it is not used for racing.
and search! trust me, you will find it.
clutch in
clutch out
clutch in, shift to gear,
clutch out
it is not used for racing.
08-31-2003, 05:17 PM
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Re: whats it mean to double clutch? (faultofhumanity)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by faultofhumanity »</TD></TR><TR><TD CLASS="quote">Can any one tell me what it means to double clutch? i saw the term in the 1st gear thread and remember hearing it in a movie. what is it?</TD></TR></TABLE>
It means to live life, one mile at a time.
It means to live life, one mile at a time.
08-31-2003, 05:17 PM
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Re: whats it mean to double clutch? (blackhatchy)
then what is the point? does it help if the synchro is screwed up? it is on my reverse but i just shift into first then quickly shift into reverse.
08-31-2003, 05:18 PM
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Re: whats it mean to double clutch? (hatchback)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hatchback »</TD></TR><TR><TD CLASS="quote">
It means to live life, one mile at a time. </TD></TR></TABLE>
a quarter-mile at a time! sheesh........
It means to live life, one mile at a time.
</TD></TR></TABLE>a quarter-mile at a time! sheesh........
08-31-2003, 05:19 PM
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Re: whats it mean to double clutch? (faultofhumanity)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by faultofhumanity »</TD></TR><TR><TD CLASS="quote">then what is the point? does it help if the synchro is screwed up? it is on my reverse but i just shift into first then quickly shift into reverse. </TD></TR></TABLE>
its like that on most civics, and what you are doing pretty much is d-clutching.
its like that on most civics, and what you are doing pretty much is d-clutching.
08-31-2003, 06:34 PM
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i remember having to double clutch in an old ford pick up and in my vw diesal rabbit. only way you could shift into gears. clutch would lock up i guess. never had to in honda or any modern car.i think its an old thing. hehe
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08-31-2003, 07:09 PM
#9
Re: (faultofhumanity)
It is generally for BIG trucks... which do not have synchro's...
You do it to rev match the rpm's with the upcoming gear.
It can be usefull on downshifts at higher rpms but that causes tranny damage... so it's not the best idea...
Oh and generally you gas it in neutral to get the revs up then you re-depress the clutch to go into the next gear.
You do it to rev match the rpm's with the upcoming gear.
It can be usefull on downshifts at higher rpms but that causes tranny damage... so it's not the best idea...
Oh and generally you gas it in neutral to get the revs up then you re-depress the clutch to go into the next gear.
08-31-2003, 08:14 PM
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Re: (NonovUrbizniz)
[QUOTE=NonovUrbizniz]It is generally for BIG trucks... which do not have synchro's...
yep, and in our cars..we have no need to double clutch.
yep, and in our cars..we have no need to double clutch.
08-31-2003, 11:43 PM
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Re: whats it mean to double clutch? (blackhatchy)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackhatchy »</TD></TR><TR><TD CLASS="quote">what movie did you hear it from?
and search! trust me, you will find it.
clutch in
clutch out
clutch in, shift to gear,
clutch out
it is not used for racing.</TD></TR></TABLE>
I dont understand the point of the first too steps. Why put the clutch in if your just gonna take it out, THEN put it back in, why not just do clutch in, shift into gear, then clutch out? Does putting it in at first get the tranny "ready" to put the clutch in again or something.
and search! trust me, you will find it.
clutch in
clutch out
clutch in, shift to gear,
clutch out
it is not used for racing.</TD></TR></TABLE>
I dont understand the point of the first too steps. Why put the clutch in if your just gonna take it out, THEN put it back in, why not just do clutch in, shift into gear, then clutch out? Does putting it in at first get the tranny "ready" to put the clutch in again or something.
09-01-2003, 12:08 AM
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Re: whats it mean to double clutch? (blykins)
I heard the first step is to get the clutch disk to spin back to speed, cus when you push the clutch in the disk starts to slow down so if you let of the clutch it forces it back aginst the fly wheel to bring it back up to speed, thats what i heard , also i heard like lets say your in first gear you clutch in, bring it to nutral clutch out, clutch in put it to second then clutch out.
09-01-2003, 12:24 AM
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Re: whats it mean to double clutch? (faultofhumanity)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by faultofhumanity »</TD></TR><TR><TD CLASS="quote">then what is the point? does it help if the synchro is screwed up? it is on my reverse but i just shift into first then quickly shift into reverse. </TD></TR></TABLE>
I believe reverse has no syncro.
I believe reverse has no syncro.
09-01-2003, 01:06 AM
#16
Re: whats it mean to double clutch? (95hatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95hatch »</TD></TR><TR><TD CLASS="quote">
I believe reverse has no syncro.</TD></TR></TABLE>
no synchro and straight cut gear. the point of double clutching is to slow down the internals of the tranny, as to make it easier to line up the gears. on a vehicle with no synchronizers, you are supposed to clutch in, shift to neutral, clutch out (slows down tranny), clutch in, shift into gear, clutch out. all in all, don't worry about double clutching. don't worry about the 150 shot of NAWWWWSSSSS blowing the welds on the intake either. or the rivets on the floorpan flying out at high speeds. or the $10,000 you spent on a turbo and a programmable ecu.
I believe reverse has no syncro.</TD></TR></TABLE>
no synchro and straight cut gear. the point of double clutching is to slow down the internals of the tranny, as to make it easier to line up the gears. on a vehicle with no synchronizers, you are supposed to clutch in, shift to neutral, clutch out (slows down tranny), clutch in, shift into gear, clutch out. all in all, don't worry about double clutching. don't worry about the 150 shot of NAWWWWSSSSS blowing the welds on the intake either. or the rivets on the floorpan flying out at high speeds. or the $10,000 you spent on a turbo and a programmable ecu.
09-01-2003, 06:06 AM
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Re: whats it mean to double clutch? (Kamin)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kamin »</TD></TR><TR><TD CLASS="quote">completley pointless on a transmission with syncros.</TD></TR></TABLE>
Ah, unless it is a S1 tranny with a f**ked 3rd syncro...
Ah, unless it is a S1 tranny with a f**ked 3rd syncro...
09-01-2003, 08:36 AM
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Re: whats it mean to double clutch? (faultofhumanity)
No no no,
Double clutching is when, on a down shift,
you push in the clutch,
take the gear selector out of gear,
let out the clutch,
blip the throttle,
press in the clutch,
put the gear selector into the next lowest gear,
let out the clutch.
The purpose is to rev match the gears, so that it is quicker to downshift. You only double clutch when downshifting, so, yes, in FnF it is pointless during drag racing. Double clutching IS used in tranny's with synchros.
Double clutching is when, on a down shift,
you push in the clutch,
take the gear selector out of gear,
let out the clutch,
blip the throttle,
press in the clutch,
put the gear selector into the next lowest gear,
let out the clutch.
The purpose is to rev match the gears, so that it is quicker to downshift. You only double clutch when downshifting, so, yes, in FnF it is pointless during drag racing. Double clutching IS used in tranny's with synchros.
09-01-2003, 08:39 AM
#21
Re: whats it mean to double clutch? (22lbGS-R)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 22lbGS-R »</TD></TR><TR><TD CLASS="quote">
no synchro and straight cut gear. the point of double clutching is to slow down the internals of the tranny, as to make it easier to line up the gears. on a vehicle with no synchronizers, you are supposed to clutch in, shift to neutral, clutch out (slows down tranny), clutch in, shift into gear, clutch out. all in all, don't worry about double clutching. don't worry about the 150 shot of NAWWWWSSSSS blowing the welds on the intake either. or the rivets on the floorpan flying out at high speeds. or the $10,000 you spent on a turbo and a programmable ecu. </TD></TR></TABLE>
No it's to speed up the rotation of the engine... the transmission is ALWAYS spinning at the rate of wheel spin... (obviously affected by final drive and what gear is currently selected... if it's neutral half the tranny is still spinning as fast as the wheels... it's just disconnected from the other half of the tranny which is connected via clutch to the engine.)...
So the double clutching without gasing in neutral is pointless on ANY car/truck... synchronized or not...
To be CLEAR...
Double clutching is:
Clutch in...
Take out of gear into neutral
GAS
Clutch in
Put into next gear
Clutch out.
It is to RAISE the rpms of the engine to better match the spin of the NEXT gear... it is pointless on a synchronized tranny unless it's to downshift into a gear out of it's normal rpm range.
no synchro and straight cut gear. the point of double clutching is to slow down the internals of the tranny, as to make it easier to line up the gears. on a vehicle with no synchronizers, you are supposed to clutch in, shift to neutral, clutch out (slows down tranny), clutch in, shift into gear, clutch out. all in all, don't worry about double clutching. don't worry about the 150 shot of NAWWWWSSSSS blowing the welds on the intake either. or the rivets on the floorpan flying out at high speeds. or the $10,000 you spent on a turbo and a programmable ecu.
</TD></TR></TABLE>No it's to speed up the rotation of the engine... the transmission is ALWAYS spinning at the rate of wheel spin... (obviously affected by final drive and what gear is currently selected... if it's neutral half the tranny is still spinning as fast as the wheels... it's just disconnected from the other half of the tranny which is connected via clutch to the engine.)...
So the double clutching without gasing in neutral is pointless on ANY car/truck... synchronized or not...
To be CLEAR...
Double clutching is:
Clutch in...
Take out of gear into neutral
GAS
Clutch in
Put into next gear
Clutch out.
It is to RAISE the rpms of the engine to better match the spin of the NEXT gear... it is pointless on a synchronized tranny unless it's to downshift into a gear out of it's normal rpm range.
09-13-2003, 11:58 AM
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OMFG SO MUCH INFO THATS **** IN HERE,
Listen to 22lbGS-R he's right.
everyone else has this confused with rev-matching.
and it does help the life of the sycros of your car, and smoother shifting.
Listen to 22lbGS-R he's right.
everyone else has this confused with rev-matching.
and it does help the life of the sycros of your car, and smoother shifting.
09-13-2003, 01:54 PM
#24
Re: (HJLau75)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HJLau75 »</TD></TR><TR><TD CLASS="quote">OMFG SO MUCH INFO THATS **** IN HERE,
Listen to 22lbGS-R he's right.
everyone else has this confused with rev-matching.
and it does help the life of the sycros of your car, and smoother shifting.</TD></TR></TABLE>
yeah ok...
http://www.g-speed.com/pbh/double-clutch.html
http://www.driversedge.com/dblcltch.htm
http://www.cruzers.com/~twakeman/LR/FAQ_clutch.htm
http://forums.evolutionm.net/s...l+toe
http://www.urs4.com/technical/....html
that's 5 that agree with me... I didn't find ONE that even remotely states that it's to "slow down the gears"... that's just not the case...
Double clutching is EXACTLY what I said it is...
It's UTTERLY POINTLESS TO DOUBLE CLUTCH ANY TRANSMISSION WITH SYNCHROS...
again... the ONLY purpose of double clutching be it on an upshift (what it really SHOULD refer to (as it's REQUIRED to make a non-synchronis tranny shift into the next gear (neutral rpms are too low to enter into the next gear so you need to up the rpms so the gear will engage) or downshift (technically called rev-matching although you're doing the same thing... matching the revs of the engine ( and in turn the trannies primary shaft) to the revs of the transmissions "secondary shaft" )..
what 22lbgsr said was that it's to slowdown the primary shaft... which is not the case as AS SOON as you engage the clutch the primary shaft slows down... (I'm actually pretty sure it stops... releasing the clutch in neutral would actually speed it up to the rpms of the engine idle.)
Listen to 22lbGS-R he's right.
everyone else has this confused with rev-matching.
and it does help the life of the sycros of your car, and smoother shifting.</TD></TR></TABLE>
yeah ok...
http://www.g-speed.com/pbh/double-clutch.html
http://www.driversedge.com/dblcltch.htm
http://www.cruzers.com/~twakeman/LR/FAQ_clutch.htm
http://forums.evolutionm.net/s...l+toe
http://www.urs4.com/technical/....html
that's 5 that agree with me... I didn't find ONE that even remotely states that it's to "slow down the gears"... that's just not the case...
Double clutching is EXACTLY what I said it is...
It's UTTERLY POINTLESS TO DOUBLE CLUTCH ANY TRANSMISSION WITH SYNCHROS...
again... the ONLY purpose of double clutching be it on an upshift (what it really SHOULD refer to (as it's REQUIRED to make a non-synchronis tranny shift into the next gear (neutral rpms are too low to enter into the next gear so you need to up the rpms so the gear will engage) or downshift (technically called rev-matching although you're doing the same thing... matching the revs of the engine ( and in turn the trannies primary shaft) to the revs of the transmissions "secondary shaft" )..
what 22lbgsr said was that it's to slowdown the primary shaft... which is not the case as AS SOON as you engage the clutch the primary shaft slows down... (I'm actually pretty sure it stops... releasing the clutch in neutral would actually speed it up to the rpms of the engine idle.)
09-13-2003, 02:12 PM
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Re: (NonovUrbizniz)
so when i down shift and hit the gas with the clutch pushed down to bring up the rpms for a smooth down shift... that's just regular rev-matching right? i would assume that it reduces wear on the clutch RIGHT?
What about for upshifting when you let the engine fall to the right rpm before the clutch goes in that's normal and is better for the clutch then just dropping it... also rev-matching.
Double Clutching is only for non-syncro gears... like reverse or if you're tranny is fucked as far as i know...