OMG..... how much more rice can there be

Grez~Supra_RZ-S · Post by **Grez~Supra_RZ-S** » 25 May 2007, 19:30

Ive got into the habit of doing that when Im driving on normal roads now, the other half always shouts at me for it.

steelsnake00 · Post by **steelsnake00** » 25 May 2007, 19:58

Grez~Supra_RZ-S wrote:Ive got into the habit of doing that when Im driving on normal roads now, the other half always shouts at me for it.

So it isn't just me who gets shouted at by my significant other for it

shadow665 · Post by **shadow665** » 25 May 2007, 22:23

now that some good driving

darknight788 · Post by **darknight788** » 26 May 2007, 06:06

nice driving there, i find it funny not many people know how to heel-toe, and double clutch

xHaZxMaTx · Post by **xHaZxMaTx** » 26 May 2007, 10:31

Wow, the NSX-R was in 1st for more than 2/3 of that race, that's freaking awesome.

Grez~Supra_RZ-S · Post by **Grez~Supra_RZ-S** » 26 May 2007, 15:54

darknight788 wrote:and double clutch

And I find it funny how people still double clutch, even though its been pointless on cars for the last 60 years or so since synchros were invented.

darknight788 · Post by **darknight788** » 26 May 2007, 18:38

There are times, however, that a normal car driver may want to make use of double clutching. Many manual transmission drivers realize the advantages of downshifting in slippery conditions. Rather than brake and skid, a car with a manual transmission can make use of the engine to slow down - thereby eliminating the possibility of a skid. But even with synchronizers, a driver trying to shift from fifth gear into second could have some trouble. In this case, double clutching by pausing in neutral and giving the engine a little gas to match speeds of the engine and gearbox, can allow such a drastic shift.

Some driving purists maintain that it's still the proper way to shift, and makes for a much smoother ride. It eliminates some of the jumpiness sometimes felt in a manual transmission car, and it decreases the stress on the gearbox. In any case, double clutching a skill worth having in emergency downshift situations, and not very difficult to learn.and many heavy duty trucks to this day still do not use synchros

boganbusman · Post by **boganbusman** » 27 May 2007, 07:31

In an 'emergency' situation as you described, it would be much easier to just tap the accelerator before you bring the clutch back in. You don't need to double-clutch.

I frequently use that technique when I approach a roundabout or steep hill, or any other time when I need to downshift without braking. If I could, I would heel-toe every shift, but the pedals in my car are too far apart, and I wear work boots most of the time.

Grez~Supra_RZ-S · Post by **Grez~Supra_RZ-S** » 27 May 2007, 11:31

Did I just read a 'copy and paste' piece of text?

darknight788 · Post by **darknight788** » 27 May 2007, 18:12

you sure as hell did

xHaZxMaTx · Post by **xHaZxMaTx** » 27 May 2007, 20:28

Of course, darknight never uses proper punctuation.

darknight788 · Post by **darknight788** » 27 May 2007, 20:33

uF COarSe nHat

i still do double clutch my car though, it is a skill that has been dying off but i intend to keep doing it , it doesnt do any harm

steelsnake00 · Post by **steelsnake00** » 27 May 2007, 21:49

darknight788 wrote: it doesnt do any harm

Unless you mess up your timing, in which case you can skin your driveshaft.

darknight788 · Post by **darknight788** » 27 May 2007, 22:11

well you have to know what you are doing first

steelsnake00 · Post by **steelsnake00** » 27 May 2007, 22:26

Its one of those things that takes practice, I found. I learned to do it ages ago, taught by my dad as an emergency measure in case I ever experianced clutch failure.

boganbusman · Post by **boganbusman** » 28 May 2007, 10:01

How can you double clutch if your clutch has failed?

And if it ever happened to me, I would just pull over instead of trying to limp around.

Grez~Supra_RZ-S · Post by **Grez~Supra_RZ-S** » 28 May 2007, 10:18

darknight788 wrote:you sure as hell did

LOL, fair play for admitting it.

I had a play around with double clutching yesterday...Ill be honest, it still seems pointless. As Bogan said, its actually easier to just blip the throttle to match the revs.

darknight788 · Post by **darknight788** » 28 May 2007, 10:45

but what about on transmissions without any synchros ? i dont know if it will make a difference or not

boganbusman · Post by **boganbusman** » 28 May 2007, 11:25

On a transmission without synchros, you would have to double clutch. But even trucks have synchros don't they? Double-clutching your way through a multitude of gears on a truck would be a right pain.

GLoPJe · Post by **GLoPJe** » 28 May 2007, 13:38

good vid of double clutching http://videos.streetfire.net/search/dou ... 41d4d1.htm

steelsnake00 · Post by **steelsnake00** » 28 May 2007, 14:10

boganbusman wrote:How can you double clutch if your clutch has failed? And if it ever happened to me, I would just pull over instead of trying to limp around.

I know what I meant

...you can do clutchless changes but it's a different technique to double clutching. You need to double clutch if your gear synchros fail (which used to happen quite alot on the old G60 and VR6 gearboxes) which is why my dad taught me.

PSZeTa · Post by **PSZeTa** » 28 May 2007, 14:31

GLoPJe wrote:good vid of double clutching http://videos.streetfire.net/search/dou ... 41d4d1.htm

When I try to do that, my brain just jams on me.. Pretty damn complicated.

darknight788 · Post by **darknight788** » 28 May 2007, 18:27

@ bogan , no most heavy OTR trucks do not have synchros

steelsnake00 · Post by **steelsnake00** » 28 May 2007, 22:34

I'm sure that isn't true. I've been in the cab of a 25-tonner with the driver changing normally.
Mind you, that isn't one of those enormous 40+ tonners, that's a regular HGV over here.

darknight788 · Post by **darknight788** » 28 May 2007, 22:47

25 ton is class 7 they MIGHT have synchros but it is rare over here. almost all class 8 (40 ton +) trucks do not have synchros. more reliability and durability are the main reasons for not having synchros in the bigger trucks