Very interesting - is performance improving with age?

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vader

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So another thread here regarding the pedal box got me thinking. I haven't tried turning off traction control in a while - ok years. Lets see if there is any difference and whether a faster accelerator response will indeed improve performance. I turned of the speed limiter, turned off all traction (well as much as you can do in the SE) by holding the traction button. I was in sports mode - ok, I am *always* in sports mode, but I thought I better confirm it. Stamp on the accelerator and...... wheelspin. I have track tyres with insane amounts of grip, and I spun the wheels! Not just a bit either. Ok, there is more than enough power to break traction.

I stepped it back to the standard dsc mode, by first engaging normal "nanny" mode, then a quick flick of the dsc switch. The warning came up again, and....... wheelspin - but just at the beginning. Engaging "nanny mode" again, and no wheelspin. Not unsurprisingly, the best starts were in fact with traction control on. It is actually faster off the line when you don't spin the tyres. Now with practice, I think the simple dsc mode (ie not completely off) could be faster, but by so little it probably isn't worth it.

I don't know if a faster accelerator response will in fact make any difference - maybe spin the wheels sooner. The AD09 tyres are about as good as you can get on a dry, well maintained road after the cyclone washed away all the ..... um .... stuff on the road. Has the little beast bedded in, or maybe one of the firmware updates recently actually *increased* performance. Very odd. The best take off I managed was simply stamping on the accelerator with traction control fully on. No wheelspin, no torque steer, just enough acceleration to feel it in your cheeks. No the ones on your face.......

Not at all what I expected, but has confirmed that the perceived "delay" when starting off is simply the car overcoming momentum in the fastest possible way. Not the most "fun", but definitely the fastest. Even lightening the car wont change the initial start, but once the car is going and the tyres are doing their job, they can put more energy into the road, and accelerate faster.
 
I like yourself, has played around with the traction on/off, modes etc., have even tried the old school, "brake stand", although with front wheel drive, not quite the same, where you car apply the brakes, fully depress the acceleration pedal and slowly release the brake pedal, I found that I could launch the mini better. As with anything else, every car/driver is different, tires, weather etc., all play a role and not everyone will or can get the same results, but for me, the Pedal Box was the deal breaker, it works, period.......
David
 
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after the cyclone washed away all the ..... um .... stuff
[OT]I was dragging my sister along to see her first Lions game at the Gabba; we first heard of Alfie's new track on the 1st, the night before leaving for Sydney. We decided to take a chance, but by the time we deplaned from the long flight, the forecast for SEQ was pretty dire, so we cancelled our flight up north and rooms for the week in Brisbane and GC, stayed and extra night in Sydney and headed home. Sigh.
 
"brake stand", although with front wheel drive
That doesn't work with modern DSC systems. With the brake applied, the DSC limits torque delivered to the wheels.

That said, if you'd like to experiment some more, try "roller mode" – virtually all nannies completely off.
 
So another thread here regarding the pedal box got me thinking. I haven't tried turning off traction control in a while - ok years. Lets see if there is any difference and whether a faster accelerator response will indeed improve performance. I turned of the speed limiter, turned off all traction (well as much as you can do in the SE) by holding the traction button. I was in sports mode - ok, I am *always* in sports mode, but I thought I better confirm it. Stamp on the accelerator and...... wheelspin. I have track tyres with insane amounts of grip, and I spun the wheels! Not just a bit either. Ok, there is more than enough power to break traction.

I stepped it back to the standard dsc mode, by first engaging normal "nanny" mode, then a quick flick of the dsc switch. The warning came up again, and....... wheelspin - but just at the beginning. Engaging "nanny mode" again, and no wheelspin. Not unsurprisingly, the best starts were in fact with traction control on. It is actually faster off the line when you don't spin the tyres. Now with practice, I think the simple dsc mode (ie not completely off) could be faster, but by so little it probably isn't worth it.

I don't know if a faster accelerator response will in fact make any difference - maybe spin the wheels sooner. The AD09 tyres are about as good as you can get on a dry, well maintained road after the cyclone washed away all the ..... um .... stuff on the road. Has the little beast bedded in, or maybe one of the firmware updates recently actually *increased* performance. Very odd. The best take off I managed was simply stamping on the accelerator with traction control fully on. No wheelspin, no torque steer, just enough acceleration to feel it in your cheeks. No the ones on your face.......

Not at all what I expected, but has confirmed that the perceived "delay" when starting off is simply the car overcoming momentum in the fastest possible way. Not the most "fun", but definitely the fastest. Even lightening the car wont change the initial start, but once the car is going and the tyres are doing their job, they can put more energy into the road, and accelerate faster.

This is all fairly technical sounding for what I know but the "turned off the speed limiter" and the "nanny mode" got me curious. Can you go faster than 95mph?
 
This is all fairly technical sounding for what I know but the "turned off the speed limiter" and the "nanny mode" got me curious. Can you go faster than 95mph?
The issue is the SE is a single speed direct drive the torque fades considerably by 12,000 drehzahl (RPM).
i3srpm.webp
 
It's interesting that the torque is rock steady at 199 lbf⋅ft until 4500 RPM, and then it basically drops into the fall line of a black diamond run.
 
It's cool how there are only three or four "teeth" as it ramps quickly to full power, then at the top of the band the teeth are particularly jagged before smoothing out as power drops with torque and the revolutions rise.
 
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