Sport Button thoughts.

[shimmy]

Sorry, no idea what that was all about but great to see it written down!

[AlexGTT]

Originally Posted by shimmy

Sorry, no idea what that was all about but great to see it written down!

It's still your fault.

[Bounce]

Originally Posted by AlexGTT

It's still your fault.

[Rutkowski]

Originally Posted by cantfind1

....... throttle bodies just open wider in sport mode for a given pedal displacement and flap opens earlier. Fueling is the same for throttle body angles in normal and sport mode, there are no separate fuel maps for sport mode in the MSS54HP ecu.

my understanding is this;

1. The sport button causes a greater pedal angle displacement which translates into greater TB opening angle.

2. The gas pedal is a potentiometer so any changes in relation to throttle position vs opening angles are done via ECU... which regulates air & fuel.

3. When you drive at a constant speed and then press sport button on - what happens? The car speeds up.

so....

a. ECU 'knows' that at i.e. 50% throttle position angle in sport off - the TB opening angle is 50%

b. Press sport on - and re - read my point 2 again. We now have throttle position at 50% but TB opening angle is at 70%

c. Explosion in cylinders happens at an exact ratio of fuel vs air and therefore ECU has to have a different set parameters for air & fuel VERSUS throttle angle position.

SO... yes, press sport on while driving and what happens again? Is it not the same as you depressing the gas pedal few more angles? Engine RPM rises and so does the fuelling... Simple really.... but ALL controlled by engine ECU and therefore, there must be a different map / program for sport on and sport off mode.

I can't be any clearer than this!

[shane@mbtech]

Originally Posted by Rutkowski

my understanding is this;

gas pedal opens TB = more air enters engine @ greater velocity = greater volume of air = ecu releases more vpower 100ron to maintain correct ratio.

what some are saying is that gas pedal is being depressed @ a certain angle but it causes no more TB opening angle regardless of sport on / off.

Surely that's incorrect because when i am driving and i keep the gas pedal at a constant angle and then press sport on - the car speeds up! so what happened then? greater TB opening angle = more air in = more fuel

the sport button causes a greater pedal angle which translates into the above. It has to be a different engine map which alters angles.

The gas pedal is a potentiometer so any changes to opening angles % are done via ECU which regulates air & fuel.

you cannot say all it does is change angle of gas pedal with no further consequence... as i said, the car speeds up when you press sport on, which means it gets more fuel and air in.

What i.e. 10% is in sport mode

simples

Fuck off

[AlexGTT]

Originally Posted by lawsy

Fuck off

I can appreciate a man who cuts to the chase.

[Rutkowski]

Originally Posted by lawsy

Fuck off

ahhh, so you have finally got it then?!!

i'm glad i could help!!

[Rutkowski]

Originally Posted by cantfind1

....... throttle bodies just open wider in sport mode for a given pedal displacement and flap opens earlier. Fueling is the same for throttle body angles in normal and sport mode, there are no separate fuel maps for sport mode in the MSS54HP ecu.

my understanding is this;

1. The sport button causes a greater pedal angle displacement which translates into greater TB opening angle.

2. The gas pedal is a potentiometer so any changes in relation to throttle position vs opening angles are done via ECU... which regulates air & fuel.

3. When you drive at a constant speed and then press sport button on - what happens? The car speeds up.

so....

a. ECU 'knows' that at i.e. 50% throttle position angle in sport off - the TB opening angle is 50%

b. Press sport on - and re - read my point 2 again. We now have throttle position at 50% but TB opening angle is at 70%

c. Explosion in cylinders happens at an exact ratio of fuel vs air and therefore ECU has to have a different set parameters for air & fuel VERSUS throttle angle position.

SO... yes, press sport on while driving and what happens again? Is it not the same as you depressing the gas pedal few more angles? Engine RPM rises and so does the fuelling... Simple really.... but ALL controlled by engine ECU and therefore, there must be a different map / program for sport on and sport off mode.

I can't be any clearer than this!

[_Nathan_]

Originally Posted by The Gorilla

Its also interesting to see what
KMS offer with a Pectel SQ6M for the/65/85
stepper motors.

They convert back to a Throttle cable.

I have a wiring diagram for that installation with DBW?

I have seen a linkage to control both banks with a single DBW motor though, can't remember where.

[The Gorilla]

Hi,

Nathan- yes KMS offer this for their
Pectel/V10 kit and now their S65
Kit as well.

I have a Link here somewhere to
a Guy who is doing the V10 / E46
conversion, and using the KMS
Kit, with the Manual throttle
conversion kit.

I have always maintained that the
the S54 is much more responsive
with a Throttle cable than DBW E-Gas
and much better for exiting out of the tighter
twisties.

Interesting that the FIA in the 'Blown Diffuser'
row, are now looking into the correlation of the
engine throttle inputs in relation to the engine
load ,as the blown diffuser uses fuel on the
overrun, something which Renault were doing back
in the eighties.

Which was escalated by how poor Renault performed
this weekend.

Vetel is Sennaesque on throttle load and inputs
entering and exiting corners, so the fact that there
is fuel on the overrun suits his driving style,
take that away and Webber gets right back into
the mix in a similar car.

Poliitics in F1 being what it is though, and
its all back as they were for Germany!!

I believe that Ferrari know that this year, both Championships
are gone, so by having the politics now and having
a good idea of what next years 'changed' Regs
will bring they can start to make their investment
in Alonso start to pay off commercially.

Sorry, back on thread, have a Guy in Germany who
is going to scan the CSL ECU and see what its got.

Regards,

The Gorilla.