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      Yesterday, 10:48 AM   #23
MystroX5
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Originally Posted by AndroidRobot View Post
There's maybe 1 station here with 93, I can stop by and add a few gallons depending on how much is in my tank to at least get 92 octane overall. Climate control was off, music off, roof closed, tires are at 39/45 front rear for the 21's.

Here's the DA data for this morning:

Later today when it's 80F the air density will go down to 85% so that won't help
Try to run your current fuel way down and then fill up with the good stuff. Run it through until you are about that 3 gallon mark. The computer will need a few miles of the good fuel to adjust anyway. Love to see that air temp below 60 degrees. The turbo will respond. My plan is to do my runs in the 45-50 degree mark in the spring. Look in the manual and it will state you can run your tires at max pressure with speeds over 100mph. As long as you hook up, that rolling resistance will be reduced at max pressure. Try folding your side mirrors in on a few runs. Your active grill shutter position will most certainly make a difference.
This is a fun project. I love to do this kind of stuff.

Last edited by MystroX5; Yesterday at 10:54 AM.
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      Yesterday, 10:56 AM   #24
AndroidRobot
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Originally Posted by MystroX5 View Post
Try to run your current fuel way down and then fill up with the good stuff. Run it through until you are about that 3 gallon mark. The computer will need a few miles of the good fuel to adjust anyway. Love to see that air temp below 60 degrees. The turbo will respond. My plan is to do my runs in the 45-50 degree mark in the spring. Look in the manual and it will state you can run your tires at max pressure with speeds over 100mph. As long as you hook up, that rolling resistance will be reduced at max pressure. Try folding your side mirrors in on a few runs. Your active grill shutter position will most certainly make a difference.
This is a fun project. I love to do this kind of stuff.
I'll see if I can give all of that a shot. I know there's no manual grille shutter control but I can increase the tire pressure a bit (hopefully it doesn't make the ride too harsh). The bad part is here the weather is only getting warmer so air density will thin out
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      Yesterday, 12:32 PM   #25
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Originally Posted by AndroidRobot View Post
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Originally Posted by Num3erz View Post
What app are you guys using?
Draggy, it requires their sensor which uses GPS and an accelerometer (for G forces)

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Originally Posted by NoCompromise View Post
How do you launch the X5?
One press of the traction button put the car in sport+, gear lever in S, left foot on brake firmly, right foot floored on the gas, launch control message pops up release the brake and go
You just got your car not long, and finished break-in that fast? Wow, you must drive it 24/7
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      Yesterday, 12:48 PM   #26
AndroidRobot
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Originally Posted by 2019x5User View Post
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Originally Posted by AndroidRobot View Post
Quote:
Originally Posted by Num3erz View Post
What app are you guys using?
Draggy, it requires their sensor which uses GPS and an accelerometer (for G forces)

Quote:
Originally Posted by NoCompromise View Post
How do you launch the X5?
One press of the traction button put the car in sport+, gear lever in S, left foot on brake firmly, right foot floored on the gas, launch control message pops up release the brake and go
You just got your car not long, and finished break-in that fast? Wow, you must drive it 24/7
I drive a lot, usually 15k miles year. I also drove 350 miles home from getting the car and average 30-50 miles a day so yeah. My X3 had 16,300 miles after 10 months but I did some more driving than usual
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      Today, 11:32 AM   #27
bavaria22
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Quote:
Originally Posted by MystroX5 View Post
That will make a difference. We run 93 to Sunoco 94 Ultra. My C4S loves the 94 octane. What was your outside temp and humidity rate when you did your morning run? Was your climate control completely off? Add a extra 5lbs of pressure to your tires. You wouldn’t believe what Mopar does to get their times.
Has anyone in Europe tried regular gas versus the 102 Octane Aral Ultimate stuff? I wonder how much of a difference it makes in terms of horsepower or "draggy" times.
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      Today, 11:39 AM   #28
AndroidRobot
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Has anyone in Europe tried regular gas versus the 102 Octane Aral Ultimate stuff? I wonder how much of a difference it makes in terms of horsepower or "draggy" times.
Draggy is a VBOX more or less and is accurate within 0.01s of true 1/4 recordings per many people testing on the drag strip.

Higher octane will allow the timing to advance a certain amount meaning more power so it will help to a degree.
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