Double clutching?!?!

[wrecked98]

I am wondering what exactly double clutching is. I know there are many of you who have wondered the same thing but are too afraid to ask. Well im tired of just nodding my head and pretending to know what my friends are talking about when they talk about doudle clutching.

what is it?
whne do you do it?
When do you not do it?
is it good on the clutch?

-Tony

 

[Scot_94GT]

It's when you shift into neutral and let the clutch out, then rev-match, then push the clutch in and shift into gear. VS. just rev-matching with the clutch pushed in. pretty pointless with modern synchromesh transmissions if you ask me...but hey, they do it in The Fast and the Furious

 

[5spd GT]

I have always understood double clutching was used more in auto-x racing when approaching a slower curve (than the car is going) one would push in the clutch to put the gear in neutral, let out on the clutch, rev it up, push back in the clutch and stick it in the approriate gear for the curve to power out of it and then release the clutch. That way you do not "engine break" and you can match your rpms to the lower gear you will be in.

But in reality with the newer synchros (not the "old school" ways) alls you have to do is blip the throttle (to the right rpm) after sticking in the clutch and then put it in the right gear and let out off the clutch all in a very short amount of time to not let the revs fall down...so it is a smooth transition in the powerband.

Your friends have been watching to much of the fast and furious

This is all assuming I'm correct with my assumption. Basically you don't use it during a drag race...you upshift...not downshift

 

[mystang94gt]

I had a friend tell me that he double clutches his 5.0 by shifting from 3rd to 5th or some sh**. I laughed my azz off in his face. He said it was much quicker that way. YEAH WHATEVA!

I personally dont know what it means and I will admit that. But Im positive it doesnt mean shifting from 3rd to 5th! LOL

 

[slytherin]

Fast and furious LOL! The best example of double clutching is in Bullett damn Steve Mcqueen hammered that 390 GT!

 

[CARJACKED]

The only time I have seen anyone double clutch is due to tranny problems. If it doesn't go into gear easily double clutching can help. The fast/furry crap was just stupid. Almost as bad as "blowing the welds off of your intake with all that NOS"...

 

[wrecked98]

Thanks everyone for clearing that up. Now I dont feel like suck a dumb a$$

 

[Scot_94GT]

Almost as bad as "blowing the welds off of your intake with all that NOS"...

Which causees you floorboards to fall out

 

[SilverFoxbody]

If you rode a motorcycle or atv you would undersatnd right away. To simpligy the deffinition:

1st gear.
Lets say you dump it a little, the motor boggs, what do you do? you push the clutch in just a tad, hammer it and engage the clutch again at a higher RPM - THAT IS DOUBLE CLUTCH.

You never change gears durring a double clutch operation BY DEFFINITION. You can switch gears before double clutching, but never durring - or it would be called shifting!

Double clutching sounds like BOW WOoooow. Say it out loud - it makes sense.

 

[Scot_94GT]

If you rode a motorcycle or atv you would undersatnd right away. To simpligy the deffinition:

1st gear.
Lets say you dump it a little, the motor boggs, what do you do? you push the clutch in just a tad, hammer it and engage the clutch again at a higher RPM - THAT IS DOUBLE CLUTCH.

You never change gears durring a double clutch operation BY DEFFINITION. You can switch gears before double clutching, but never durring - or it would be called shifting!

Double clutching sounds like BOW WOoooow. Say it out loud - it makes sense.

Never heard that definition before. Of course that means you are wrong.

 

[slytherin]

Good analogy(sp) silver fox.

 

[Caldwell]

Almost as bad as "blowing the welds off of your intake with all that NOS"...

 

[illwood]

It was always my understanding that double clutching didn't actually require "bliping" the throttle or anything.

It was just that before synchros, the gear trains in your tranny didn't have a way to get spinning at the right speed to shift on their own. So when you were ready to shift, you would put the clutch in, put the tranny in neutral, then release the clutch (even just 1/2 way) so that you spun the components of the tranny without drive gears engaged, then clutch back in, shift, and release the clutch.

Sounds like silverfox was describing how to not stall when you pick to low an RPM to launch from.

 

[nazstang]

If you rode a motorcycle or atv you would undersatnd right away. To simpligy the deffinition:

1st gear.
Lets say you dump it a little, the motor boggs, what do you do? you push the clutch in just a tad, hammer it and engage the clutch again at a higher RPM - THAT IS DOUBLE CLUTCH.

You never change gears durring a double clutch operation BY DEFFINITION. You can switch gears before double clutching, but never durring - or it would be called shifting!

Double clutching sounds like BOW WOoooow. Say it out loud - it makes sense.

yeah, this is the def. that i would give. it's used alot in drifting(damn imports need to double clutch to spin tires ), and used all the time in riding bikes. it's a easy way to get up on a wheelie! i know alot of those other "definitions", but i think this is the exact one.

haha! floorboards falling off

 

[illwood]

Yah, but by that definition it doesn't matter whether you have synchros or not.

Double clutching came from the "old days" of manual transmissions.

 

[nazstang]

Yah, but by that definition it doesn't matter whether you have synchros or not.

Double clutching came from the "old days" of manual transmissions.

yeah, that was the other double-clutch i was talking about. Bob Tasca of Tasca Ford has a old t-bucket, and he let me drive it out back to the car show in his lot. he told me i need to double clutch it to shift. so i did, and i forgot to shifting into 3rd and GRRRRR, those gears grinded like crazy! but i think the term double clutch now-a-day, is what was said above. honda guys and even sti's and evo's do it all the time to get the revs up, and boost. thank god stangs don't need it!

 

[Black Stampede]

That made sense Silver after I thought it out. So its essentially like revving it up before you dump the clutch except not from a stop. You do it when you are already going.

 

[5spd GT]

In the movie "Vin Diesel" was saying granny shifting and not double clutching as you should which as we can see has no parallel's to each other in straightline racing...but sadly I think people interpret it as a sort of "speed shifting" because it was compared to "granny shifting"...

My "blipping" the throttle reference was made for auto-x'ers...for the "old school" corner racing...