What Happens when you switch to Sports Mode?

[musclehedz]

When you switch to Sports Mode, what exactly happens and what processes takes place?

 

[jarance]

Engine rpm is higher, hence better torgue output. gear change at higher rpm.. also fuel consumption goes up..

if you rev too high the car can take off.. just joking..

 

[c-square]

Originally posted by jarance@Jun 29 2005, 01:21 AM
Engine rpm is higher, hence better torgue output. gear change at higher rpm.. also fuel consumption goes up..

if you rev too high the car can take off.. just joking..

yups... that's about it

 

[musclehedz]

Doesnt' the Economy and Sports Mode has got a different set of settings apart from that? What about Ignition Timing Advancing and Retardation? I don't think it's just as simple as higher gear changes at higher RPM :dunno:

 

[Lee36328]

a different auto transmission programe is used between the two modes...

 

[musclehedz]

Originally posted by Lee36328@Jun 29 2005, 02:33 PM
a different auto transmission programe is used between the two modes...

Ok, that's the gearbox ECU. So what about the engine ECU, what does the Sports Mode program do exactly?

 

[ZeNeGeR]

1 more u guys miss out.. i found very usefull when going down hill on ur Sport mode... It will actually slow down ur speed.. Can save your brake pad...

 

[johnchen]

Originally posted by ZeNeGeR@Jun 29 2005, 05:24 PM
1 more u guys miss out.. i found very usefull when going down hill on ur Sport mode... It will actually slow down ur speed.. Can save your brake pad...

You're aboslutely right. However, I found the Sports mode in the 318i 2.0L much higher geared than the 325i. Thus when going down Genting highlands, with the 318 the Sports mode gear slows down the car better than the 325. And the 325i is very fun car to drive in Sports mode esp up Genting!!

 

[musclehedz]

Originally posted by ZeNeGeR@Jun 29 2005, 05:24 PM
1 more u guys miss out.. i found very usefull when going down hill on ur Sport mode... It will actually slow down ur speed.. Can save your brake pad...

That's coz in S mode, the gear will shift only in higher RPM, so driving down slopes the RPM is not high enough to enable it to go into the next higher gear thus Engine Braking occurs.

 

[wkwoo69]

AFAIK the ECU does not remap ignition and fuelling if you change to "S". Personally, I think that's too much to ask of mid-9O's tech (though note the M5's plethora of options now!) and redundant when mated to a non-switch auto. As Lee said, its merely the tranny maps.

I never felt I had to switch to S in town driving, though on the expressway its the first thing I reach for when I see something coming up fast from behind (hopefully a bling E46 with massive rims heh heh!)

 

[musclehedz]

Originally posted by wkwoo69@Jun 29 2005, 06:31 PM
AFAIK the ECU does not remap ignition and fuelling if you change to "S". Personally, I think that's too much to ask of mid-9O's tech (though note the M5's plethora of options now!) and redundant when mated to a non-switch auto. As Lee said, its merely the tranny maps.

I never felt I had to switch to S in town driving, though on the expressway its the first thing I reach for when I see something coming up fast from behind (hopefully a bling E46 with massive rims heh heh!)

Got any white paper to confirm this? It's something interesting to know about

As for me, I notice there is a difference in E and S mode. Has anyone done a dyno run on S and E modes before? I only did my dyno in S mode, not E mode and * mode.

I also notice in E mode at flooring the accelerator, the power rush comes in instantly and smoothly all the way to 7000 then shifts gear from 2 to 3. On the S mode at flooring the accelerator, the power rush comes in instantly BUT at 5000rpm, there is another rush of power coming in all the way to 7000 then shifts gear from 2 to 3. If this is the work of the superchip, than definitely there are 2 sets of mappings being used, that's why I was curious about what happens during E and S mode.

 

[dvng]

if i am not wrong, the car pulls off in 1st gear during 'S' mode (changing up in abt 4000rpm) and pulls off 2nd gear in 'E' mode..(and lower rpm for changing up)..

 

[Zoggee]

Originally posted by ZeNeGeR@Jun 29 2005, 04:24 AM
1 more u guys miss out.. i found very usefull when going down hill on ur Sport mode... It will actually slow down ur speed.. Can save your brake pad...

enigne braking you mean... :blush:

 

[flash]

Originally posted by dvng@Jun 29 2005, 09:22 PM
if i am not wrong, the car pulls off in 1st gear during 'S' mode (changing up in abt 4000rpm) and pulls off 2nd gear in 'E' mode..(and lower rpm for changing up)..

On my ex-Babe, in E mode, it still takes off in 1st and upchanges are earlier, below 3k rpm. In S mode, the upchanges comes in later, cannot remember at which rpm, but I hazard a guess at around 5k rpm. but then again, at which point it upchanges also depends on how much the power pedal you are pressing.

Only in the "*" mode does it takes off in 2nd i.e. for those snowy conditions when you want to prevent wheel spins. But this I did not try....

 

[musclehedz]

Originally posted by flash+Jun 30 2005, 07:54 AM-->QUOTE (flash @ Jun 30 2005, 07:54 AM)

 

[affan66]

it is not recommended to play with the S mode often. Our gearboxes can't last. What a pity.

 

[musclehedz]

Originally posted by affan66@Jun 30 2005, 09:37 AM
it is not recommended to play with the S mode often. Our gearboxes can't last. What a pity.

I always drive in S mode. Damn.

 

[three28]

Lee is right .

The S mode uses a different tranny prog .

The * mode (Winter Mode) is slightly different but still its a different tranny program all together .

cheers

 

[nikazwaa]

it is not recommended to play with the S mode often. Our gearboxes can't last. What a pity

Thank god for manual transmission

BMW should get to work on that...

 

[flash]

Originally posted by affan66@Jun 30 2005, 09:37 AM
it is not recommended to play with the S mode often. Our gearboxes can't last. What a pity.

My ex-Babe? Seldom use the S mode. No need to. Even in E, she can be a handful, especially since I was still on 15" rims. In the wet, whoooooooaaaaaa nellie. Mine no DSC / ASC some more. Veli dangerous.