Driving manual....

[aaronng]

3)whilst holding down the clutch still i give a bit of gas
4)as im giving a bit of gas i release the clutch up

hopefully thats right ?

Well, this is one way of doing it if you want a downshift and accelerate off as quickly as possible.

While doing this, do you feel any jerkiness when you release the clutch quickly? It doesn't matter if your tacho shoots up high. You know you are at the right RPM if you release the clutch quickly and it is relatively smooth.

I just blip the throttle, I don't hold it unless I want a fast getaway.

[anfz]

I havent tried it aaronng with releasing the clutch very quickly,Ill keep that in mind next time,Ive also heard of the term double clutching what exactly is that ,is that the same as rev matching? what benefits are there to that ?

[roar]

double clutching...

on downshift
1) clutch in and move gear stick to neutral
2) clutch out
3) blip throttle
4) clutch in and change to the lower gear
5) clutch out

benefits - for a normal everyday car...not alot
it becomes useful for transmissions where the gear synchros are starting to wear or there are no synchros (ie a truck transmission)

double clutching matches the revs of the internal gears to each other

[anfz]

So its pretty much the same as rev matching as it does the same thing is that right ?

[roar]

it reduces the slight jumpiness you may feel...and theoretically, it is the best way to shift in order to preserve your synchros

the reason for this is because when you are in neutral without depressing the clutch...the clutch is still connected to the input shaft...

so the clutch can be spun up to the right speed as well

contrary to alot of belief double clutching can also be done on upshifts as well...
where you give a pause in order for the revs to drop before proceeding to shift up

[EK4R]

rather then confusion and explaination, try here guys, mite clear a few things up before you ask the question.

Video of basic manual driving and techniques (double clutch, hill-toe,rev-match) http://www.standardshift.com/videos.html
(NOTE: the above site has a nice little forum too, worth checking it out)

now heres my questions. when i upshift, i tend to add gas while i let off clutch, anything wrong with this? i get a very smooth upshift though. or do you guys let out clutch all the way before you add gas?

[czy_sol87]

rather then confusion and explaination, try here guys, mite clear a few things up before you ask the question.

Video of basic manual driving and techniques (double clutch, hill-toe,rev-match) http://www.standardshift.com/videos.html
(NOTE: the above site has a nice little forum too, worth checking it out)

now heres my questions. when i upshift, i tend to add gas while i let off clutch, anything wrong with this? i get a very smooth upshift though. or do you guys let out clutch all the way before you add gas?

yeh thats what i do as well, was taught to give a little gas to make the shift more smoother

[aaronng]

So its pretty much the same as rev matching as it does the same thing is that right ?

Rev matching saves your clutch, double clutching saves your synchros. With double clutching you just put the gear in to neutral and release the clutch. (blip throttle here if you have to) Then press the clutch in again and shift to the gear you want. Blip and release clutch.

Too troublesome at this point. Learn to rev match first, then after that, double clutching will be easy since you are just releasing and pressing the clutch 1 extra time.

[gnx1987]

thanks norma thats the best explanation Ive understood up to now,just to give ya an update went for a drive tonight and was trying it quite often, and what happens is i dont feel no jerking, but the rev meter goes up quite abit,im guessing i should give less gas, also how do i know exactly if im doing it right ? I did it in this order, say im in 4th gear going into 3rd
1) clutch in
2)slip it into 3rd
3)whilst holding down the clutch still i give a bit of gas
4)as im giving a bit of gas i release the clutch up

hopefully thats right ?

The best way for someone to learn something verbally if practically is not an option is for the learner to try to explain it back to the teacher. What you've said here is pretty much right. All you've got to get used to, is giving it the right amount of gas on step 4 and also give it a bit of gas while shifting to third. As far as double clutching goes, I reckon you'd have to be the biggest penny pincher to do that when driving a car. I personally have never tried double clutching and I don't intend to unless I have to learn to drive a truck or a car with no synchros. That and it's to slow.

[roar]

its not as slow as you think

after a little practice you can get a double clutch downshift done in less than a second...

of course its not as quick as pure revmatching...but it gives you a sense of satisfaction lol...and when a passenger sees you doing it they think you are godlike

[anfz]

Hey guys been practising it quite a bit and feel like im spot on with it,but at times I feel its pointless, like I have that smoother gear change even without rev matching at times ,so what im asking is it necessary to do all the time? or only when i feel like i will get alot of engine compression and therefore have to in order to match the revs so i can get a smooth change over ?

[aaronng]

In which gear change do you feel you don't need to rev match. I find that for 6-5 shifts in my car, I don't need to blip the throttle as the RPM rises on its own when I press the clutch in. Even for 5-4 shifts it is a very very light tap.