Arthur Fowler

Two questions:

1) Do you double de-clutch from 3rd to 2nd?

2) Do you use your engine for braking?

Arthur

SiPie

1) No
2) Yes

SiDHEaD

No
Yes (standard brakes with knackered pads are shat )

Suresh

1. No (synchro makes that unnecessary ?)
2. Yes, usually with a throttle blip to keep it smooth

dr_ming

1, No, only to get back into 1st whilst rolling (reduces stress on synchro).
2, With small blip on throttle, as above.

Why?

ALi-B

iTrader: (1)

1) Normally no, unless I'm driving a car with fecked syncros (i.e my old XR3) or having troule getting first.

2) Yes, I heel and toe it too

Nathan L

1. Yes

2. No

Nathan..

NotoriousREV

1) No, it's not a 1958 Austin Cambridge
2) Yes

S Page

1) Double de-clutch, thats something my grandad used to have to do in his old army trucks. Syncro's are f###ed if you have to do that.

CrisPDuk

1. No. Double declutching has not been necessary since the advent of the synchromesh gearbox. You cannot pass your advanced driving test unless you do it.

2. Yes. I drive a Sierra XR4x4, as far as I am aware there is no other way of stopping the f**king thing

Hicky

Whut the flip is double de-clutching? I've heard of it but never actually know how to do it!

sulli

1. Yes - generally when setting up for a corner, wanting the correct gear to power out, but little as possible engine braking;
2. A little bit

Oh, and I heel and toe

[Edited by sulli - 11/18/2003 5:49:33 PM]

Nick Martin

clutchless downchanges, the quickest way to go!

Richard Askew

As same as Sulli

Editted to add LFB too

[Edited by Richard Askew - 11/18/2003 5:57:09 PM]

TEXAS PETE

Hicky:

1.Clutch in
2.Move the gear stick to NEUTRAL
3.Clutch out
4.Blip the accelerator
5.Clutch in again
6.Move the gear stick to the new gear
7.Clutch out again

I don’t know why anyone would do this in a scoob?

sulli

Texas Pete - it sounds laborious, but takes probably less than half a second.
I find it extremely useful when driving hard, needing to set the engine up for powering out of a corner, but not upsetting balance of car too much by getting heavy (or any) engine braking.
Richard Askew - not got the hang of LFB yet - how, when and why do you do this? Is it worthwhile (on the road).

TEXAS PETE

http://www.tcsracing.org/doubledeclutching.htm

ALi-B

iTrader: (1)

I was about to ask...does anyone try clutch-less gearchanges

Used to do this on my escort for a laugh to freak out my mates (btw gearbox was already knackered anyway ) Also do it with the nissan when I'm bored!

Engaging overdrive on the landy is the trickest one (no syncro)and the main gearbox is an Auto (i.e no clucth - ashcroft conversion for those in the know )

[Edited by ALi-B - 11/19/2003 11:43:40 PM]

TEXAS PETE

Now I’ve read the explication it makes perfect sense, I do it all the time when driving hard! As you say Sulli it takes a fraction of a second..

Gary C

Double declutch ?, waste of time, went out of fashion in the 50's.

Suli, do you mean you actually lift the clutch pedal in neutral when you blip the throttle on a down shift,why ?

H&T is the way to go in my opinion. Matches the speed between the cup & cone of the syncro hub (if you get it right), gives a smoother shift.

Engine braking, of course, why would you not use it ?

scooby_si

do you not need to do it in scoob if u try going into 1st when moving i used to? Que the leave it in 2nd comments lol
Si

sulli

Heel and toe is the same as double-de-clutching, just using brake at the same time.
And yes, I do lift the clutch to blip throttle - the lazy way is not to lift the clutch - don't know if I am right, but I do it out of habit, and cause it works

TEXAS PETE

leave it in 2nd

dr_ming

If you didn't lift the clutch before blipping the throttle, how would you spin up the input shaft of the gearbox?

Gary C

Suli, H&T and double de-clutch are very different (well the way that I know them)

H&T down shift while braking,

Press brake
at appropriate moment press clutch
Shift down
Blip throttle using foot that is also pressing brake
Lift clutch

Double de-clutch

Press clutch
Shift into neutral
Lift clutch
Press clutch
Shift to next gear
Lift clutch

Very different procedures, we are probably talking and 6's and 7's

sulli

When I heel and toe I lift the clutch and blip throttle in neutral (whilst braking), during downchange. Like I say, exactly as double de clutch, but whilst braking with toe end of foot

Gary C

Ah, maybe your right

I always though you did not have to lift the clutch on the blip, but it does seem as if you would need to to get the input shaft to spin, i though the small amount of friction in the clutch would do that, but maybe not.

ALi-B

iTrader: (1)

It all depends on the clutch and how much drag it has when it's dis-engaged (pedal in). A clutch with alot of drag will easily spin the input shaft whilst the pedal is down.

Also its down to the gearboxes internal friction, partly a reason why its difficult to change gear when cold is that the oil thickness slows the box too much between shifts. Something I keep trying to get through to my mate with his new MX-5 (still not run-in)

Wilster

I blip when I change down for more power (and to avoid unnecessary hammering of the drive-train) and double declutch to engage first as that seems to be a problem sometimes in the Scoob. I do not H&T, thats a more advanced technique I would prefer a track for! Can't see the point of lifting the clutch mid-change for anything other than first though.

Gary C

The thing I like about H&T is that when you lift the clutch, its a very smooth transition that does not upset the car. Find the pedals of the subaru a bit far apart to do it as easily as most previous cars. I think I will have to modify the pedal box. Has anyone done this ?