E46 M3 Sport switch
Discussion
Engaged: More sensitive throttle map (no more power)
Edited as I thought as per the E39 M5 it also included less power-steering assistance but apparently this is not the case. Apologies for any misleading information. More here: http://m3forum.net/m3forum/showthread.php?t=123378
Edited as I thought as per the E39 M5 it also included less power-steering assistance but apparently this is not the case. Apologies for any misleading information. More here: http://m3forum.net/m3forum/showthread.php?t=123378
Edited by rassi on Wednesday 3rd June 12:56
The throttle responce curve is Linear as opposed to concave.
This basically means press 1/2 = get 1/2 throttle opening. As opposed to press 1/2 and getting about 1/3 throttle opening.
Full throttle is the same opening on both but it will open quicker with the sport button on.
No changes to the steering.
This basically means press 1/2 = get 1/2 throttle opening. As opposed to press 1/2 and getting about 1/3 throttle opening.
Full throttle is the same opening on both but it will open quicker with the sport button on.
No changes to the steering.
Edited by Rawhide on Wednesday 3rd June 10:38
The throttle response is much more linear in Normal compared to Sport. (Although still not completely linear)
As an example, at 1/3 throttle in 'Normal' the butterfly will be 39% open. At the same throttle position in 'Sport' the butterfly is 62% open.
I never use it personally, I much prefer the control you get using the normal linear response.
As an example, at 1/3 throttle in 'Normal' the butterfly will be 39% open. At the same throttle position in 'Sport' the butterfly is 62% open.
I never use it personally, I much prefer the control you get using the normal linear response.
The Restorer said:
As other have said just increases the throttle map. To me the car feels extremely lethargic up to 4k without the sport button on. Saying that I don't use it all time though.
I agree. Even more so after I had a sprint booster cable removed as it was messing with some warning lights. I'd be tempted to put it back on but don't wanna risk it.The Restorer said:
As other have said just increases the throttle map. To me the car feels extremely lethargic up to 4k without the sport button on. Saying that I don't use it all time though.
Spot on, it feels pretty wheezy without it on, like it's being strangled.I don't use it around town or when parking, but elsewhere it is on most of the time.
I don't understand people saying it feels slower, etc.
That's because YOU are not pressing the pedal down far enough.
It's the only difference. 2 cars at 3000rpm, one with sport on and the other with sport off will accelerate at the same rate for a given butterfly position. It's just that the driver with sport off will have had to push the pedal further to achieve that opening.
It's all psychological. (And basically an easy gimmick for BMW to install)
That's because YOU are not pressing the pedal down far enough.
It's the only difference. 2 cars at 3000rpm, one with sport on and the other with sport off will accelerate at the same rate for a given butterfly position. It's just that the driver with sport off will have had to push the pedal further to achieve that opening.
It's all psychological. (And basically an easy gimmick for BMW to install)
gizlaroc said:
Huh?? why would you have a sprint booster on when you have the sport button?? The Sprint Booster is just replicating the sport button.
I hate the sport button, not enough control with it on, far better with it off, and you shouldn't be below 4000rpm in an M3 anyway!!
I didn't even know it was there to be honest until it was taken out - it was fit by whoever had it prior to me.I hate the sport button, not enough control with it on, far better with it off, and you shouldn't be below 4000rpm in an M3 anyway!!
Its probably all psychological anyhow.
Paul_M3 said:
The throttle response is much more linear in Normal compared to Sport. (Although still not completely linear)
As an example, at 1/3 throttle in 'Normal' the butterfly will be 39% open. At the same throttle position in 'Sport' the butterfly is 62% open.
I never use it personally, I much prefer the control you get using the normal linear response.
+1... i dont use it .. on the track its easier to modulate the throttle with a longer more progressive travel.. flat out is still flat out..!As an example, at 1/3 throttle in 'Normal' the butterfly will be 39% open. At the same throttle position in 'Sport' the butterfly is 62% open.
I never use it personally, I much prefer the control you get using the normal linear response.
I thought it made the steering more responsive aswell as throttle response. Mine did.
I remember showing my wife the difference in wheel movement to the way the car steered.
I always had it off as its very sensitive and made it jerky with me driving through town. I only used it when giving it some beans.... all empty back roads!
I remember showing my wife the difference in wheel movement to the way the car steered.
I always had it off as its very sensitive and made it jerky with me driving through town. I only used it when giving it some beans.... all empty back roads!
Gassing Station | M Power | Top of Page | What's New | My Stuff