Thesport button, what does it do & do you use it?

[cj_eds]

So here's an embarrassing admission - I have never understood what double de-clutching is. Still don't. There, I have just exposed my ignorance to the world... Not that it really matters as I now drive an auto, but still

Everyday is a school day Bing!

Its when you press the clutch twice - once to move out of the previous gear and then again to engage the next gear. While in neutral in between gears you momentarily lift the clutch, and rev the engine to whatever speed it would be at for the gear you're going into. It was needed on old cars with no syncromesh because it was bloody difficult to get the next gear if you didn't. I always thought it was a bit unnecessary for general road driving in a modern car though?

As for heel & toe'ing, I generally try to be off the brakes before messing with the gears - so you've then got your right foot free to play with the accelerator without straddling two pedals.

Although I now do none of this since I've bought an auto....

 

[Bing]

So here's an embarrassing admission - I have never understood what double de-clutching is. Still don't. There, I have just exposed my ignorance to the world... Not that it really matters as I now drive an auto, but still

Everyday is a school day Bing!

Its when you press the clutch twice - once to move out of the previous gear and then again to engage the next gear. While in neutral in between gears you momentarily lift the clutch, and rev the engine to whatever speed it would be at for the gear you're going into. It was needed on old cars with no syncromesh because it was bloody difficult to get the next gear if you didn't. I always thought it was a bit unnecessary for general road driving in a modern car though?

As for heel & toe'ing, I generally try to be off the brakes before messing with the gears - so you've then got your right foot free to play with the accelerator without straddling two pedals.

Although I now do none of this since I've bought an auto....

Sounds like that would need some serious practice to get it done quickly, but I can see the point on a track. As for heel and toe, on the track day I was on a while back I was told to brake to your required speed then change gear (in straight line as far as possible) then do your steering... However I have an auto too, but thanks for the education cj

 

[BMWZ4MC]

Seriously I can't even think of the last car I had that needed double declutching-& I'm including my 915 boxed 911 in that!

Needed? No, but down shifting into a gear such that you are entering that gear at the top end of the rev range demands an awful lot of the synchromesh and feels very wrong to me. It is completely excessive when driving sedately and changing down low in the rev range, but it's become a habit such that not doing so requires much more concentration

Heel & toe fair enough, & yes I heel & toe when on track to match engine revs to wheel speeds but even in the old Porsche there was no need to help the synchro's along by double declutching?

I suppose it's not going to do you any harm I guess, I just think heel & toe suffices in a modern car, plus as I said I'd find it hard to anything more than give the throttle a blip whilst braking such are the peddle spacings.

I find the pedal spacing can make heel and toeing difficult in the Zed too. Instead, when driving at the very limit of traction on the track when rev matching has to be exactly right (not just a satisfying attempt at heel and toeing) I tend not to try.
Instead, I brake hard initially, feathering the brakes slightly right before turn in (rather than just coming off the pedal) then come off the brakes completely as I turn in. The idea is to finish braking before the corner so as not to have braking and turning forces fighting over the available traction, and also to make the transition from braking to turning in smooth lest a violent change from heavy braking to sharp turn in unsettles the car. I double declutch whilst cornering when both my feet are free to rev match precisely, and progressively accelerate out from the apex. If a little oversteer is wanted, it's easily achieved by trailing the brake a little beyond turn in then downshifting and undermatching the revs to drag the rear wheels a little...

This doesn't allow for progressive sequential downshifting through seveal gears whilst braking the way that heeling and toeing would, and means that the additional effect of engine braking is lost of course...

It's the immediate throttle response in sports mode that makes heel and toeing and double declutching possible , just try it next time you're at a roundabout onthe A3

 

[doofus4000]

I like it but prefer it off as there is more throttle feel/input imo. It definitely makes you think your car is more powerful!

 

[Beedub]

i leave mine on all the time, i have a different function with my sport button..... Ess also added sport button memory, so once i turn it on, it still is on when you come to the car next, neat little feature.......