mifesto

iTrader: (58)

no no we are talking about braking.... well atleast i am... car balance isn't as important when going or braking straight, your tire has full traction... its when you are turning that your tire struggle to do two things at once.....

yeah ofcourse if you arent braking then its irrelevant which method of rev matching your doing.... i mean anyone can learn to rev match very quickly.. you just have to have a feel of what RPM is appropriate... its heel N toe that takes practice to perfect ...

astondg

I was replying to this post about double clutching, not braking.

Also with regards to this..

you can brake and use heel and toe with any form of rev matching, double clutch or single clutch.

So in my original post I meant that I use single clutch rev matching for all my down changes, and heel and toe and slingle clutch rev matching together on all my braking and down changes on the race track and on the road. Even when I go 4th to 2nd and turning into corners etc. and I have no problems with car stability. I also sometimes use a double clutch down change and it makes no difference in car balance and it takes longer. It does save the synchros though.

Sorry for the confusion.

Aston

mifesto

iTrader: (58)

uhh that is my point i think we are talking about the same thing and going around and around in little deviations in wording lol

astondg

Ok, I am confused , I will re-read the posts and try to understand .

Aston

InfinityGuy

Does anybody know where i can find details about how synchros work?

runny_yolk

http://auto.howstuffworks.com/transmission.htm

InfinityGuy

Lazy me! .... the how stuff works site rules....

EvolvedfromaWRX

iTrader: (7)

size 14-15...been heal-toe'n it as long as i've had a license

plokivos

iTrader: (3)

I think you're missing the point of double clutching. history of it is that you HAD to double clutch on old cars, since they didn't have a syncro mesh on their car for down shifting.

Anyway, when you double clutch it not only helps you get into the speed you want, when you track, but also it allows a smoother transaction on gear changing, so you wont be jerked around the car. I think that's where the stability comes in.

You're perfectly still when you double shift.

Now Heel and toe, that's in the same line of driving smoothly and having a smooth transfer of gear changes.

That's what I meant.

I double clutch, heel and toe on corners/downheel/uturns/just for hell of it, but I try not to single clutch so much, since pushing the clutch in for that long while reving just doesn't feel so safe. Also, you're wearing your clutch out more than say, double clutching.

I double clutch on 4th to 3rd as well. I do it, because car wont get jerky and I wont accidently hit the accelerator and skip and wobble.

But all good stuff.

evolved04

iTrader: (2)

i understand that all of your size 12's have a tough time with the whole heel toe thing. i have a 16, and i cant do it. i learned at a younger age that i needed to get quicker with my feet in order to keep pace with all you smaller guys, so i just left foot brake, which is equal, if you can work the brake and clutch with one foot quickly,it is all the same, find the best way to get your car going or stopped as soon as possible.

mrmefodman

iTrader: (1)

My personal opinion is that a clutch is a wear out item. the more u use it the quicker it wears out. same with all parts. So the less clutch the better. The less times the synchros have to synchro the better. One clutch is quicker than two. I think that as long as u rev match, which will save syncros from having to work too hard, than one clutch brake and throttle is the way to go.

JoizeeX

i think there's still some confusion here:

"Anyway, when you double clutch it not only helps you get into the speed you want, when you track, but also it allows a smoother transaction on gear changing, so you wont be jerked around the car. I think that's where the stability comes in."

the jerkyness and instability doesn't come from single-clutching. it comes from not revmatching correctly: the car jerks when ur in gear and releasing clutch and ur rpm are too slow or too fast. the jerking and stability are NOT affected by how u got the shifter into that gear (single or double clutching). double clutching only makes it easier to shift into gear without a notchy feel (saves some synchros). once ur in gear, if ur rpms don't match car's speed right before u release the clutch, u can still jerk the car.
heel n toe like aston said, is not the same as double clutching, although u CAN double clutch (or single clutch) while heel n toeing. heel n toe just means u brake and blip throttle to revmatch with the same foot.
my personal preference is to double clutch if i'm just coasting to a stop and not using brakes. if i'm planning on taking the corner fast and brake late, then i heel n toe with single clutching and i run through the gears consecutively: 5th>4th>3rd>2nd. the wear on the synchros is not that much more than on upshifting really.
if u guys watch best motoring clips, they always single clutch when they heel n toe. they have excellent technique, u'll notice how they hit all 3 pedals almost simultaneously and shift. i've got to the point where i can do that, but i don't always revmatch perfectly before releasing clutch on the evo because i've only had it for 3 months. i'm better at it on my '94 teggy. both cars have great pedal positioning and height for this.
good luck practicing the techniques!