Pre loading the gearbox

[BigNige]

...before a change - makes for a faster change but does/could it damage the box?

[stevieturbo]

do you really think it makes it faster ? and how fast do you need to change gear ?

Is trying strange ideas, really worth potential damage ?

[BigNige]

stevieturbo said:

do you really think it makes it faster ? and how fast do you need to change gear ?

Is trying strange ideas, really worth potential damage ?

What's strange about trying things?

Why do you think I asked the bloody question?

[slackalice]

BigNige said:

...before a change - makes for a faster change but does/could it damage the box?

Not sure what you mean, do you mean blipping the throttle on the up change ? if so I don't think that you need to as the flywheel is so heavy that the revs don't drop that amount ( if at all ), and the torque will kick in anyway and propel you forward at a steady rate of knots.

If you do want to blip on the up change, (and this is something that I have had to learn not to do with this car) all that will happen is the UJ's will clonk, and if the rears don't light up in between changes then the clutch will give out.

[BigNige]

My bad, should have explained myself better.

Accelerate, put pressure on the gear stick ready for the next gear, dip clutch and change - change is deffo quicker than the normal way of driving.

[Demolition Man]

Isn't that how you change gear anyway? - or am I missing something?

..... edited to say... I think I know what you mean now.... But I'd rather have 2 hands on the wheel if accelerating hard.

Edited by Demolition Man on Monday 18th June 13:13

[slackalice]

BigNige said:

My bad, should have explained myself better.

Accelerate, put pressure on the gear stick ready for the next gear, dip clutch and change - change is deffo quicker than the normal way of driving.

Right got ya, then the answer is yes, The selectors will wear out very quickly, they are normally made from a phos/bronze and are meant to be in the neutral position in the box held there by detent's on the rail until they are needed. It is for that reason you should never drive with one hand on the gear stick.

[madazrx7]

Demolition Man said:

..... edited to say... I think I know what you mean now.... But I'd rather have 2 hands on the wheel if accelerating hard.

Edited by Demolition Man on Monday 18th June 13:13

Exactly! I get quite worried by drivers who leave their hand on the gearstick for any longer than the fraction of a second it takes to change gear. Why do they do it? Hand should go straight back to the wheel...

[bennno]

BigNige said:

My bad, should have explained myself better.

Accelerate, put pressure on the gear stick ready for the next gear, dip clutch and change - change is deffo quicker than the normal way of driving.

Good call, and to totally stuff your gearbox keep your foot firmly on the accelerator whilst doing so to gain an additional nanosecond.

Bennno

[BigNige]

slackalice said:

BigNige said:

My bad, should have explained myself better.

Accelerate, put pressure on the gear stick ready for the next gear, dip clutch and change - change is deffo quicker than the normal way of driving.

Right got ya, then the answer is yes, The selectors will wear out very quickly, they are normally made from a phos/bronze and are meant to be in the neutral position in the box held there by detent's on the rail until they are needed. It is for that reason you should never drive with one hand on the gear stick.

Thanks, 'twas all I needed to know.

[BigNige]

bennno said:

BigNige said:

My bad, should have explained myself better.

Accelerate, put pressure on the gear stick ready for the next gear, dip clutch and change - change is deffo quicker than the normal way of driving.

Good call, and to totally stuff your gearbox keep your foot firmly on the accelerator whilst doing so to gain an additional nanosecond.

Bennno

A little understanding and discernment of genuine questions would bode you well my friend.

[crisisjez]

Sometimes its better to phone a friend than ask the audience

[Boyce]

bennno said:

BigNige said:

My bad, should have explained myself better.

Accelerate, put pressure on the gear stick ready for the next gear, dip clutch and change - change is deffo quicker than the normal way of driving.

Good call, and to totally stuff your gearbox keep your foot firmly on the accelerator whilst doing so to gain an additional nanosecond.

Bennno

Got chatting to some guy's who drag race Mustang Cobra's, running around 550bhp FI, and they tell me they keep the throttled buried through out each gear change with good 1/4mile time improvements.

Not sure I'm brave enough myself, anyone tried it ?

[stevieturbo]

Boyce said:

bennno said:

BigNige said:

My bad, should have explained myself better.

Accelerate, put pressure on the gear stick ready for the next gear, dip clutch and change - change is deffo quicker than the normal way of driving.

Good call, and to totally stuff your gearbox keep your foot firmly on the accelerator whilst doing so to gain an additional nanosecond.

Bennno

Got chatting to some guy's who drag race Mustang Cobra's, running around 550bhp FI, and they tell me they keep the throttled buried through out each gear change with good 1/4mile time improvements.

Not sure I'm brave enough myself, anyone tried it ?

If you really dont care about your car, try it.

But do think about what you are potentially damaging, every time you do

[Demolition Man]

You can do it with Racelogic so I'm told

[delmeekc]

It can be done on a bike due to the gear setup in the box (dogs) but as far as I know as standard car gearbox is a different setup. I have never used the clutch on bike once in second going up the box but still not with it pinned unless you have a quickshifter fitted to the gear lever that cuts the ignition whilst you do it.

[stigmundfreud]

I keep my foot to the floor on all the upchanges in my (smart) car

[delmeekc]

that's virtually a bike, isn't it? needs a busa lump in it!

[magicgreg]

Full throtle changes are a risk that I have never attempted in any car.

Unless you are looking for every little bit of a 1/4 mile drag it seems pointless and possibly a costly method of changing gear at speed.

[stevieturbo]

Demolition Man said:

You can do it with Racelogic so I'm told

Thats not quite the same thing I imagine.

If you can engage an auxiliary rev limit, so while your foot is on the clutch, rpm's are kept within sensible limits, that does remove one nasty aspect of flat shifting.