Double clutching and heel-toe?

[xclusive_eg8]

some one wana record there feet doing this??? never seen it in action

[DLO01]

When downshifting:

Eg. 3rd gear > Depress clutch > neutral > release clutch > blip throttle (to match next lower gear) > depress clutch > 2nd gear > release clutch.

[aaronng]

some one wana record there feet doing this??? never seen it in action

Check youtube.

[migoreng]

some one wana record there feet doing this??? never seen it in action

watch some japanese racing clips...

brake normally, leave your toes on the brake pedal and turn your heel over to the gas pedal.
when you clutch in blip the throttle with your heel at the same time then change gears...
if done right and fast enough your revs will already be up once you let go of the clutch
the syncros don't have to work to bring the revs up, you won't feel the car jerk like when you let go of the clutch fast when downshifting and you car is more balanced when going fast into a corner

[DLO01]

I think hes asking for a clip of double clutching not heel and toe.

[curtis265]

I haven't heard of exceeding 3000rpm being bad, what if for example ur at 3000rpm in 4th and u downshift to 2nd, you would need to revmatch it to around 5000rpm~

That thing i herd said that you have to:
clutch in
shift to neutral
clutch out
-blip-
clutch in
shift to 2
cllutch out
WOT

if you wanna exceeed the 3000 rpm thing..

I rekon it's bs since nobody seemed to acknowledge it

[5thgen_prel]

wats blip??

[DLO01]

A quick depress (on - off) of the throttle.

[FDBenni]

I still don't think that's true, because it means that everytime you single clutch revmatch its bad, and that you have to double clutch all the time. I'd say the majority of people that revmatch only single clutch these days, so it can't be all bad.

for the people wanting to watch a vid of double clutch I think this is a good example. Every downshift he does is double clutched, he also double clutch heel and toes.
http://www.youtube.com/watch?v=0j-3xIZK-Bk

i still say double clutch is not necessary with modern cars though.

[curtis265]

my thoughts exactly. Why cant you rev whist in gear!

how else could u launch?

[aaronng]

my thoughts exactly. Why cant you rev whist in gear!

how else could u launch?

You can rev in gear. If the clutch is pressed in, you can rev as much as you want. The only wear in the gearbox would be the thrust bearing (which wears quickly if you like to clutch in and rev often). Double clutching is to allow getting into gear with non-synchro boxes, and can help prolong the synchros a little bit in a synchro-equipped gearbox. Heel toe on the other hand focuses on clutch wear only when releasing clutch after downshifting.

[jks24]

interesting reading this thread