Sport Button thoughts.

[shimmy]

Originally Posted by lawsy

Do you really give a shit

.

Just making conversation

[karbonkid]

Should this not have been posted in the Technical Area!?

[shimmy]

Originally Posted by karbonkid

Should this not have been posted in the Technical Area!?

I would have done but anytime I post anything technical Lawsy laughs at me

[_Nathan_]

Nothing to do with high revs and low revs?

[RolyGTIR]

Originally Posted by lawsy

At wide open throttle its the same whether on or off.

In sport, the pedal movement % increases the throttle open % compared to sport off.

It only makes the car more twitchy because most people are too agressive with the inputs. If you alter your input of pedal movement when sport is on and press the pedal slower and more progressively then it will take off the same as when sport not on.

+1 Shane

Shim I have lots of Sport Button thoughts, usually day dreaming at work! Oh by the way got the job and start on the 27th June

[shimmy]

Originally Posted by _Nathan_

Nothing to do with high revs and low revs?

ok, so its the amount of pedal travel i am on about (didnt soemone post a table of pedal travel to throttle opening sport on and off recently)

what im getting at is that if the car is harder to control at initial pedal movement with sport on surely it is easier to control at the bottom as it has more travel for less throttle response

[The Gorilla]

Hi,

The E.gas [Fly by wire] is controlled by
the thottle inputs to the engine load.

The E.gas Stepper Motor, is a linear motor,
it opens and closes the throttle bodies as there is no
throttle cable, which is via the input signals from the
Throttle pedal potentiometer.

ie ] Right foot input.

When the Sport Button is engaged, the
ECU alters the amount of fueling,
so that more fuel is allowed into the injectors.

Thus at equal throttle openings, but with ''Sport mode''
''on'', the engine gets more fuel.

Unless this fuel is burnt it will make for a
''Jerky'' ride as the ECU detects unburnt fuel and
cuts the fuelling to the injectors.

And so the ''Jerky'' cycle continues.

As Lawsy said, smoother pedal input loads will help,
as for a smaller pedal movement the engine
receives the same amount of fuel,
or its foot to the floor, and away you go.

The more you try and 'modulate the pedal'
in Sport mode the worse it gets.

Its part of the reason, although most of the
ECU brigade diagree, that I prefer an S54
with a Throttle cable.

Reason being is that on Track coming out of
slower corners its much easier to feather the
throttle modulation to keep the engine well
in the Rev band without getting into issues
wherby throttle inputs get your right foot
ahead of the E.gas Stepper motor.


Regards,

The Gorilla.

[toplad]

End of

Topic closed

[DuncanR]

Originally Posted by lawsy

CSL sport only alters throttle. Thats it.

Not true Lawsy ... it fooked my steering up once !!!!

[mattCSLnut]

The Primate has spoken If anyone is still unsure, best you get your coat The End

Originally Posted by The Gorilla

Hi,

The E.gas [Fly by wire] is controlled by
the thottle inputs to the engine load.

The E.gas Stepper Motor, is a linear motor,
it opens and closes the throttle bodies as there is no
throttle cable, which is via the input signals from the
Throttle pedal potentiometer.

ie ] Right foot input.

When the Sport Button is engaged, the
ECU alters the amount of fueling,
so that more fuel is allowed into the injectors.

Thus at equal throttle openings, but with ''Sport mode''
''on'', the engine gets more fuel.

Unless this fuel is burnt it will make for a
''Jerky'' ride as the ECU detects unburnt fuel and
cuts the fuelling to the injectors.

And so the ''Jerky'' cycle continues.

As Lawsy said, smoother pedal input loads will help,
as for a smaller pedal movement the engine
receives the same amount of fuel,
or its foot to the floor, and away you go.

The more you try and 'modulate the pedal'
in Sport mode the worse it gets.

Its part of the reason, although most of the
ECU brigade diagree, that I prefer an S54
with a Throttle cable.

Reason being is that on Track coming out of
slower corners its much easier to feather the
throttle modulation to keep the engine well
in the Rev band without getting into issues
wherby throttle inputs get your right foot
ahead of the E.gas Stepper motor.


Regards,

The Gorilla.