[itiongo]

Originally Posted by Tr4ckD4ys

I dabbled a bit with launch control for the first time yesterday. I only did two attempts and the conditions weren't favorable, but I needed to just try it out.

My setup is a X7 M50i with the stock Bridgestone Alenza tires and no other modifications and about 2500 miles on it (I tend to drive a ton in the first few months of ownership - got the vehicle End of January). I used the BMW M Laptimer app for measurement.

Conditions were subpar, with about 39F outside temp, cloudy day, winter-dusty road (ie salt and dust). I also had just filled up the car on gas and had only driven about a mile from the gas station.

It took the vehicle 4.13 seconds from 0-60 under these conditions. This is actually not too bad and faster than my stock F82 M4 Comp. I think with some Pilot Sport 4S and better conditions, a 3.9-4.0 range is realistic. A JB4 map 2 will likely bring it down to 3.8-3.9, and a DMEtune to 3.5-3.6.

Is the 0-60 trapped with the GPS from the phone, or speed from the iDrive?

[Tr4ckD4ys]

Originally Posted by itiongo

Is the 0-60 trapped with the GPS from the phone, or speed from the iDrive?

I honestly don't know. I had the app running on the phone and then also launched it in the idrive, and selected "record" via idrive. I know there's probably better apps for this out there…

[itiongo]

Originally Posted by Tr4ckD4ys

I honestly don't know. I had the app running on the phone and then also launched it in the idrive, and selected "record" via idrive. I know there's probably better apps for this out there…

I'm assuming you have DHP on your M50i?

[Tr4ckD4ys]

Originally Posted by itiongo

I'm assuming you have DHP on your M50i?

That's right - yes! That was actually a big reason why I went for the M50i over the 40i. I didn't want to deal with more deletions other than the B&W! Is that relevant for the 0-60 stuff?

[itiongo]

Originally Posted by Tr4ckD4ys

That's right - yes! That was actually a big reason why I went for the M50i over the 40i. I didn't want to deal with more deletions other than the B&W! Is that relevant for the 0-60 stuff?

I would think that DHP does make an impact. From what I read, DHP allows 100% torque to be pushed to the rear wheels. I'm guessing without DHP the torque transfer is, maybe 80%?

Could someone chime on non-DHP torque transfer to rear wheels?

[Tr4ckD4ys]

Originally Posted by itiongo

I would think that DHP does make an impact. From what I read, DHP allows 100% torque to be pushed to the rear wheels. I'm guessing without DHP the torque transfer is, maybe 80%?

Could someone chime on non-DHP torque transfer to rear wheels?

I downloaded draggy… I will do some more tomorrow in the 70F weather and dry roads!

[itiongo]

Was waiting for better temps, but was curious what the performance numbers are for winter. Launch control was used (DHP too), and I am on 285/45/21 winter tires with OEM 21" wheels. 32psi fronts and 40psi rear. 91 non-ethanol gas. 26 degrees outside. I'll upload the video once I've reviewed it.

Here are the dragy captures:

[itiongo]

Here's the video. This is the first time I recorded the dashboard as well as Dragy. I synced the videos using sound/movement. I'm surprised there's quite a bit of difference from the speedo from Dragy vs the vehicle's.

[itiongo]

[mitch57]

It would sure be nice to have two different threads for the x40i and the V8 version. Either that or specify which model you have when posting so we can make a more informed opinion/decision on whether or not the V8 models are worth the significant price increase.

Everyone doesn't have an X7 V8 model.

[itiongo]

Originally Posted by mitch57

It would sure be nice to have two different threads for the x40i and the V8 version. Either that or specify which model you have when posting so we can make a more informed opinion/decision on whether or not the V8 models are worth the significant price increase.

Everyone doesn't have an X7 V8 model.

I believe if someone decided to purchase the x40i, then performance is not a priority. However, I agree with you. This thread name should be changed to "Any real-world 0-60 times for the x50i/M50i/XB7".

Considering that this thread itself is quite unpopular, I assume 95% of x50i/M50i/XB7 owner's don't care much about performance either. They probably purchased these high end models because they can.

I myself don't care much for the performance either, but I come from a background of modifying performance vehicles. So, it's never a bad idea to truly know what your vehicles are capable of, and sometimes have a little fun.

[mitch57]

Originally Posted by itiongo

I believe if someone decided to purchase the x40i, then performance is not a priority. However, I agree with you. This thread name should be changed to "Any real-world 0-60 times for the x50i/M50i/XB7".

Considering that this thread itself is quite unpopular, I assume 95% of x50i/M50i/XB7 owner's don't care much about performance either. They probably purchased these high end models because they can.

I myself don't care much for the performance either, but I come from a background of modifying performance vehicles. So, it's never a bad idea to truly know what your vehicles are capable of, and sometimes have a little fun.

I agree in part. However, I specifically shopped for a vehicle that was in the higher performance arena. While the 40i is not a sports car it can attain 0-60 times in the low to mid 5 second range. That's no slouch.

Additionally, I make a lot of cross country road trips and passing power plays a big roll in my car purchasing decisions. I looked at Lexus first and knew I could never feel comfortable passing anything larger than a bicycle on the road in that turtle. Not to mention terrible handling.

I've seen no other vehicle in it's class that has the acceleration and power of this inline 6. Plus the compliant ride and exceptional handling for it's size.

[Tr4ckD4ys]

Originally Posted by mitch57

I agree in part. However, I specifically shopped for a vehicle that was in the higher performance arena. While the 40i is not a sports car it can attain 0-60 times in the low to mid 5 second range. That's no slouch.

Additionally, I make a lot of cross country road trips and passing power plays a big roll in my car purchasing decisions. I looked at Lexus first and knew I could never feel comfortable passing anything larger than a bicycle on the road in that turtle. Not to mention terrible handling.

I've seen no other vehicle in it's class that has the acceleration and power of this inline 6. Plus the compliant ride and exceptional handling for it's size.

The B58 is an incredibly capable engine. In fact, I'd go as far as saying that the B58 and it's S58 brother is the pinnacle of BMWs ICE capabilities. Reliability, power delivery, efficiency are all incredible! I'm sure it'll go into history as BMWs best engine before everything goes fully electric.

Sure, the V8s are amazing engines too with a good amount of extra power over those I6's, but, I really look at them strictly as an emotional choice rather than anything else. The B58 has everything a car can need on the road these days. 100hp-200hp more are just for bragging rights, not for necessity. Especially in a 6000lbs SUV.

[billybarr]

Originally Posted by Tr4ckD4ys

Yeah from what I read JB4 map 2 alone will add 100hp and 140tq to the N63.

Originally Posted by Tr4ckD4ys

Yeah from what I read JB4 map 2 alone will add 100hp and 140tq to the N63.

Lol I wish. Terry at Burger Motorsports helps me all the time. Unless you use the wastegate and and E85, you only get about 40 to 50 hp. But it is a phenomenal job. Seat of the pants is night and day. You can tell the difference immediately with the JB4 turned off. I would recommend it it to anybody with an M50

[sahajesh]

Originally Posted by swissguy

My 2019 X7 40i will consistently hit 60 in 5.2 seconds which is far better than the BMW numbers state. This is also at 2700ft in the VA mountains so no telling how well it would do at sea level. At any rate i think that is more than acceptable for a heavy SUV with a 6 cylinder engine.

With launch or sport plus?

[swissguy]

Originally Posted by sahajesh

With launch or sport plus?

I haven't used lunch control. This is in regular sport mode. I haven't coded in sport plus mode.

[Sh0xT3R]

Originally Posted by itiongo

Darn, I forgot to mention the 5th step. Alpina, after we've raced for slips and I've won. I'll use the remaining $12,000 to buy some ammo. I've changed my mind about stripping your XB7. Instead, I'll take it to my wooded land and gun it down with $12,000 worth of ammo.

There, I spent $30,000 to out perform a stock Alpina XB7.

Yes, this would be a troll post.

edit: oh, looks like my post where I shared the process of how I would dust an XB7 was removed.

Here:
1. Pick a popular tune, like Eurocharged, which gives the M50i 680hp and 622tq.(Power output exceeds the XB7(in numbers)) $3000

2. Dyno and drag for real world results. $5000

3. NOS mod the M50i. $5000

4. Dyno, tune, and drag for for real world results. $5000

$18000 total to dust the XB7.

You're not wrong here.

[Jackieee]

22’ M50i with Carbahn performance controller