[GT500R]

Originally Posted by maximumeffort

Sorry, I meant for a bone stock car. I did a quick calculation and my DA is -300 here today when I ran her.
I just checked all of the online dragy history of all ET's.
Stock mine is the quickest. WTH!?

Can others post up their stock #'s? I wonder if the 19" wheels have less unsprung weight and affect the MPH so much.

I see one X3M40i on there that ran 11.98@109.36 from RI with an MP Tune.

All stock numbers including mine have all been 4.5/4.6 (about 3-4 people have provided numbers). I have stock 19” wheels and have run similar DA stock and could not break 4.5

Although it’s interesting to hear that you can go to 3000 rpm from a standstill as nobody except the JB guys can do that due to increased load at start.

What you should do is the draggy video feature and show your launch to 60

[admranger]

Originally Posted by ParadigmDawg

There have been a couple on here that had issues and had to fight to get cars fixed under warranty. Both that I can remember, were told to quit posting on here by their lawyers.

To play, you have to be willing to pay.

For those worrying about warranty claims, read up on this:

Magnuson-Moss Warranty Act

They can only deny warranty on items directly affected by the modification. Claiming the front camera is somehow affected by a tune would be a bit of a stretch. Ask them how your tune affected the camera. Proof is up to them when it's not obvious.

I'm not a lawyer, but I have one that works for me.

[maximumeffort]

Originally Posted by GT500R

All stock numbers including mine have all been 4.5/4.6 (about 3-4 people have provided numbers). I have stock 19” wheels and have run similar DA stock and could not break 4.5

Although it’s interesting to hear that you can go to 3000 rpm from a standstill as nobody except the JB guys can do that due to increased load at start.

What you should do is the draggy video feature and show your launch to 60

Not sure how I can mount the phone to record it while doing it, but I'll try.

With launch control, it's easy though. I got the prompt in the middle of the screen both times, it revved up to about 3-4K and held there, I let go of the brake and BAM it deadhooked.

[ParadigmDawg]

Originally Posted by maximumeffort

Not sure how I can mount the phone to record it while doing it, but I'll try.

With launch control, it's easy though. I got the prompt in the middle of the screen both times, it revved up to about 3-4K and held there, I let go of the brake and BAM it deadhooked.

What GT is saying is no one has been able to hit even 3,000 on a stock motor during launch control. Once tuned they hit right at 3,000.

I have a suction cup phone mount that I can hang from my sunroof and it will show the dash plus the Dragy video but just hold youR camera like I did in this video and show us your LC RPM.

[maximumeffort]

Originally Posted by ParadigmDawg

What GT is saying is no one has been able to hit even 3,000 on a stock motor during launch control. Once tuned they hit right at 3,000.

I have a suction cup phone mount that I can hang from my sunroof and it will show the dash plus the Dragy video but just hold youR camera like I did in this video and show us your LC RPM.

Ohh, I don't know exactly what RPM it launches at, I don't stare at the darn display while launching. (I rather not risk an accident. LOL).
It sounds like it's revved in the 3k+ range, but launches with much less lag. Almost none. Even if it only revs to 3K. That is what I said. I said 3-4K.

I'll check in today, but not sure what the big deal is on that. Who cares what it launches at if it runs fast.

[GT500R]

Originally Posted by maximumeffort

Ohh, I don't know exactly what RPM it launches at, I don't stare at the darn display while launching. (I rather not risk an accident. LOL).
It sounds like it's revved in the 3k+ range, but launches with much less lag. Almost none. Even if it only revs to 3K. That is what I said. I said 3-4K.

I'll check in today, but not sure what the big deal is on that. Who cares what it launches at if it runs fast.

Adding in an extra 300-400 RPM vs. what others can do means it will run faster, hence the real quick cars can launch at 3500-4000 rpm with AWD and just hook and go.

This is why a video would help understand how you are doing this and help others be fast too

[maximumeffort]

Originally Posted by GT500R

Adding in an extra 300-400 RPM vs. what others can do means it will run faster, hence the real quick cars can launch at 3500-4000 rpm with AWD and just hook and go.

This is why a video would help understand how you are doing this and help others be fast too

You guys will get a real kick out of this then. I did 2 runs again during lunch break. You're right, my LC doesn't go above 2500rpm. Maybe I'm not holding it long enough, but form what I read it is supposed to turn off LC after 3 seconds so I'm not holding it long.... BUt..

I just ran a 4.12s 0-60 (3.91 with 1foot roll out), and a 12.49s 1/4mile @ 109.04 (Although I think I shut it down too quick, before I hit the end of the 1/4m).

Here is the video.

It's not that loud in real life by the way, the phone captured it wierd or converted it when I uploaded it.

[ParadigmDawg]

Originally Posted by maximumeffort

You guys will get a real kick out of this then. I did 2 runs again during lunch break. You're right, my LC doesn't go above 2500rpm. Maybe I'm not holding it long enough, but form what I read it is supposed to turn off LC after 3 seconds so I'm not holding it long.... BUt..

I just ran a 4.12s 0-60 (3.91 with 1foot roll out), and a 12.49s 1/4mile @ 109.04 (Although I think I shut it down too quick, before I hit the end of the 1/4m).

Here is the video.

It's not that loud in real life by the way, the phone captured it wierd or converted it when I uploaded it.

Yep, your car is broken...it shouldn't be that fast. I am actually surprised that it gets traction at those temperatures.

And, you are not anywhere close to 3 seconds on LC, maybe not even at 1 second. Trying to hold it longer and see what it does once the rmps stabilize.

[maximumeffort]

Originally Posted by ParadigmDawg

Yep, your car is broken...it shouldn't be that fast. I am actually surprised that it gets traction at those temperatures.

And, you are not anywhere close to 3 seconds on LC, maybe not even at 1 second. Trying to hold it longer and see what it does once the rmps stabilize.

Me too. In the video you posted, I can hear the tires screech. It was even a bit wet on the asphalt in the lot when I ran the car.

I guess these Pirelli Cintaro P7's are sticky as heck..

So since my car is broken, guess I have to return it to the dealership as it's too fast, right?

[MechX3M40i]

Originally Posted by maximumeffort

Me too. In the video you posted, I can hear the tires screech. It was even a bit wet on the asphalt in the lot when I ran the car.

I guess these Pirelli Cintaro P7's are sticky as heck..

So since my car is broken, guess I have to return it to the dealership as it's too fast, right?

Go get it fixed, fast, before you risk getting the warranty repair denied.

[maximumeffort]

LOL. Kind of glad Dinan does not have the tune for the car.
I was talking with the BMW's service guy who is their 'M' specialist, about getting a performance tune from Dinan as they are an authorized installer when I had the car in for the 1st oil change last week. Saved me a ton of $$$.

[GT500R]

Thanks for posting Maximim, looks good to me. Weird how you G meter goes + to - to + to - while at a standstill.

Although I guess nobody has tested in negative DA, but the SUV is def fast!

[maximumeffort]

Originally Posted by GT500R

Thanks for posting Maximim, looks good to me. Weird how you G meter goes + to - to + to - while at a standstill.

Although I guess nobody has tested in negative DA, but the SUV is def fast!

Back when I used to drag race my corvettes, even NA there could be 2-3 tenths difference in 50f vs 70f dry weather at the track. I'm sure I'll lose 2-3tenths once the warmer weather comes up.

I'll have to find a way to lock-open the front grill for cooling.

[GT500R]

Originally Posted by maximumeffort

I'll have to find a way to lock-open the front grill for cooling.

It’s the number one thing to figure out on these SUVs

[ParadigmDawg]

Originally Posted by GT500R

It’s the number one thing to figure out on these SUVs

Agreed

[maximumeffort]

Anyone know the turbocharger models on our cars? I wonder what the exact rpm is we should aim for at a launch to be at full boost.

If LC hovers at 2.5k-3k, if we launch manually without LC it should work better with traction.

[marcati]

Does anyone have experience with either:

Tuningbox https://www.tuningbox.com/en/diesel-...e-20d-190.htm#

or

DTE Systems https://www.chiptuning.com/en/bmw/x4...ercontrol.html

They both seem to have good quality products for piggyback systems.

[Benandluna]

Well if they can detect it via software, then there has to be a way to delete the logs. Anything can be hacked. Pretty sure bmw didn’t hire top level elite hackers. Where is neo when we need him