[CJJx3M40i]

Originally Posted by Max Well

I'm a bit confused, CJJx3M40i, as your name and stable imply you have a G01 X3M40i?

If you can confirm you actually have a(n) F97, please provide more details along with full image of your slip and I can add you to the St1 F97/98 formal spreadsheet.

And for those sharing 1/4 slips, here's a brief checklist of details which really helps to document runs and allows others a better chance of using that data as a reference point. Note the tire sizes are only relevant if different from OEM/stock.

Hi,
Yes I signed in the forums when I had a 2020 M40i after 5 months I upgraded to the X3M non competition and tuned it with Bootmod3 using OTS E30 map at the moment. GT500 and I were running last week at the Dragway so most of the data is the same (temperature, DA, etc). I'm running the stock tires 21" wheels. The car is absolutely stock aside from the tune.

[Max Well]

Originally Posted by CJJx3M40i

Hi, Yes I signed in the forums when I had a 2020 M40i after 5 months I upgraded to the X3M non competition and tuned it with Bootmod3 using OTS E30 map at the moment. GT500 and I were running last week at the Dragway so most of the data is the same (temperature, DA, etc). I'm running the stock tires 21" wheels. The car is absolutely stock aside from the tune.

Thanks for the clarification, CJJx3M40i.

I have your own personal spreadsheet set up and have added you to the St1 with GT500R, but need to know your tire psi F/R before I finalize them?

Also, just so we're all on the same page, doesn't the X3M usually come with 20" wheels? So your F97 has upgraded wheel size to 21" (although still OEM BMW)? This may seem overly detailed, but once the data is set here it may be referenced years from now, so if I'm taking the time to set these up I might as well get it correct from the start. I have no idea if rotational mass/weights of the two are similar or not, but at least others will have that info and can analyze if they wish.

GT500R - do you have the 20" wheels or 21"? I'll hold off posting CJJ's until I find out so I don't have to re-edit again.

Also, will either of you be flashing back to stock at some point in the future to obtain formal times for stock X3M?

[GT500R]

Originally Posted by Max Well

Thanks for the clarification, CJJx3M40i.

I have your own personal spreadsheet set up and have added you to the St1 with GT500R, but need to know your tire psi F/R before I finalize them?

Also, just so we're all on the same page, doesn't the X3M usually come with 20" wheels? So your F97 has upgraded wheel size to 21" (although still OEM BMW)? This may seem overly detailed, but once the data is set here it may be referenced years from now, so if I'm taking the time to set these up I might as well get it correct from the start. I have no idea if rotational mass/weights of the two are similar or not, but at least others will have that info and can analyze if they wish.

GT500R - do you have the 20" wheels or 21"? I'll hold off posting CJJ's until I find out so I don't have to re-edit again.

Also, will either of you be flashing back to stock at some point in the future to obtain formal times for stock X3M?

Stock 20”

Baby on the way so all up in the air when I will go back.

[Max Well]

Originally Posted by GT500R

Stock 20”

Baby on the way so all up in the air when I will go back.

No doubt!

CJJx3M40i - since you referenced the 21" tires as 'stock', is it possible you actually have the 20"? Just making sure as the terms 'stock 21" ' for the base X3M is a bit of contradiction? I understand that some have opted for the 21" wheels so just making sure. BTW - anyone know how much that upgrade costs, and is it a standalone or do others things have to be ordered as well when choosing 21" for the base?

[GT500R]

Originally Posted by Max Well

No doubt!

CJJx3M40i - since you referenced the 21" tires as 'stock', is it possible you actually have the 20"? Just making sure as the terms 'stock 21" ' for the base X3M is a bit of contradiction? I understand that some have opted for the 21" wheels so just making sure. BTW - anyone know how much that upgrade costs, and is it a standalone or do others things have to be ordered as well when choosing 21" for the base?

He has the 21” option along with nicer seats. We weighed our cars and were around 20 lbs difference or so between the two.

[CJJx3M40i]

Originally Posted by GT500R

Stock 20”

Baby on the way so all up in the air when I will go back.

There is a group of us meeting up Sept 2nd at the dragway! I know baby is almost here but Maybe you can get away for a little

[AlexFL]

Originally Posted by GT500R

Stock 20”

Baby on the way so all up in the air when I will go back.

Your first?

[CJJx3M40i]

Originally Posted by Max Well

Thanks for the clarification, CJJx3M40i.

I have your own personal spreadsheet set up and have added you to the St1 with GT500R, but need to know your tire psi F/R before I finalize them?

Also, just so we're all on the same page, doesn't the X3M usually come with 20" wheels? So your F97 has upgraded wheel size to 21" (although still OEM BMW)? This may seem overly detailed, but once the data is set here it may be referenced years from now, so if I'm taking the time to set these up I might as well get it correct from the start. I have no idea if rotational mass/weights of the two are similar or not, but at least others will have that info and can analyze if they wish.

GT500R - do you have the 20" wheels or 21"? I'll hold off posting CJJ's until I find out so I don't have to re-edit again.

Also, will either of you be flashing back to stock at some point in the future to obtain formal times for stock X3M?

Hey @[Max Well],
I'm not sure what the tires were that day for temp and psi I can tell ya what they are right now:

Front: 35 PSI (Michelin Pilot Sport 4S 255/40 ZR 21)
Rear: 40PSI (Michelin Pilot Sport 4S 265/40 ZR 21)

Mine came with OEM 21" wheels, Under tire settings I have summer tires 21" max speed < 100mph

In about 3k miles I need to go in for service, I will be flashing back to stock at some point before that. When I do I will see if I can get some numbers with dragy on the street to share :-D

[Max Well]

Originally Posted by GT500R

He has the 21” option along with nicer seats. We weighed our cars and were around 20 lbs difference or so between the two.

Originally Posted by CJJx3M40i

Hey Max, I'm not sure what the tires were that day for temp and psi I can tell ya what they are right now:

Front: 35 PSI (Michelin Pilot Sport 4S 255/40 ZR 21)
Rear: 40PSI (Michelin Pilot Sport 4S 265/40 ZR 21)

Mine came with OEM 21" wheels, Under tire settings I have summer tires 21" max speed < 100mph

In about 3k miles I need to go in for service, I will be flashing back to stock at some point before that. When I do I will see if I can get some numbers with dragy on the street to share :-D

Thanks for the updates. Here is your personal spreadsheet started, to which your future slips can be added. Also, here is the updated All St1 page. The overall Leaderboard doesn't need updating as GT500R still has the fastest time.

Although it'll be interesting to see your stock numbers using Dragy, I won't add those to a spreadsheet as keeping those for formal slips only, but hopefully some with base X3M can make it to a Strip. Thanks again for sharing your data.

[robopp]

I fully appreciate all you're doing with this Max Well !

[BMW in NE]

Originally Posted by GT500R

For your official drag slip Max.

2020 X3M
Moonroof / no spare
Official weight scale at NH Dragway was 4490
1/2 tank gas
35 psi / 38 psi

Mission Performance E50 tune

DA (slip right) was +1912
DA (slip left) was +1281

Chris you're famous! I was at NED last night and saw one of my buddies racing his silver challenger. He was like "you should have seen this BMW suv here the other night running 10s... the guy said he just had a tune".. I figured it was you.

There was also a brand new GT500 there last night... straight up beautiful

[Max Well]

Originally Posted by BMW in NE

I was at NED last night and saw one of my buddies... He was like "you should have seen this BMW suv here the other night running 10s... the guy said he just had a tune".. I figured it was you...

Looks like someone captured the race on YouTube as well -

[GT500R]

Originally Posted by Max Well

Looks like someone captured the race on YouTube as well -

As did I... could you tell I was spinning a bit

[CJJx3M40i]

Originally Posted by Max Well

Looks like someone captured the race on YouTube as well -

Oooo Yeah! that was my girl who got the video for us! and I posted it yesterday or day before on YouTube. Man that was such a good run!!!

It was a really good race, toooo bad that day was sooo stupid busy we couldn't run more than the one time side by side.

I took off really good on that one and looks like I had it but nope Custom E50 tune took the win over OTS E30!!

had that was sooo much fun!! Hope you can make Sept 2nd!!!!!!

[Max Well]

Originally Posted by GT500R

As did I... could you tell I was spinning a bit

As some of us stock are spinning at OEM tire psi recs at well-prepped tracks, it makes sense that with even more power that problem may arise. Would've been interesting, if you had more time for additional runs, to try some at lower tire psi - bet we'll see some improved 0-60' interval times as this gets dialed in.

Originally Posted by CJJx3M40i

Oooo Yeah! that was my girl who got the video for us! and I posted it yesterday or day before on YouTube. Man that was such a good run!!!

It was a really good race, toooo bad that day was sooo stupid busy we couldn't run more than the one time side by side.

I took off really good on that one and looks like I had it but nope Custom E50 tune took the win over OTS E30!!

had that was sooo much fun!! Hope you can make Sept 2nd!!!!!!

Thanks for sharing - didn't realize that was from you! Looking forward to some more slips from the NE. Now we need some base F97/98 and St2 data...

[Max Well]

Bumping this to share the current Leaderboard, and encouraging everyone who goes to a Strip to share formal slips. Doesn't have to be the fastest time only, as every slip can provide useful information. If shared, I'll prepare a personal spreadsheet for your individual runs, will add your fastest run to your group's category sheet, and if you are the fastest in your group will add to the Leaderboard.

Still no entries for base models, St2, or St2+, so anything entered into those now will be guaranteed a spot on the Leaderboard.

[Daniely30]

with a spare tire. half tank and im about 245
pump 93 downpipes

[Max Well]

Originally Posted by Daniely30

with a spare tire. half tank and im about 245
pump 93 downpipes

Thanks for sharing, @Daniely30 . Before I can set up your spreadsheet need some more info. Your garage shows you own a 2017 340i, so not sure what model F97/98 you have? If you don't remember the DA I can figure it out once I see your full slip which shows location, date and time. And not sure if you just have a downpipe alone or also a tune (are you St1 or St2)? As there are so many combinations of mods gotta depend on Members to indicate what category I should place their data. Not a huge deal if you can't remember your tire psi, but are the wheels stock or ?

[SuperSport]

Wanted to share a draggy result from last night. X3MC, Stage 1 91 Bm3 tune, stock weight, stock tire/rim, golf clubs, backpack, 5/8 tank of gas. Used Launch Control and had a few gallons of e85 in the tank mixed with 91 octane.

[Max Well]

Originally Posted by SuperSport

Wanted to share a draggy result from last night. X3MC, Stage 1 91 Bm3 tune, stock weight, stock tire/rim, golf clubs, backpack, 5/8 tank of gas. Used Launch Control and had a few gallons of e85 in the tank mixed with 91 octane.

Nice run, SuperSport and good documentation of vehicle specifics. Looking forward to adding you to the St1 group when you can share some formal 1/4 mile slips.

[RoyB]

You guys with your BM3 are really making me want one. I took off the JB4 for an oil change. It may not go back on now.

[floating.spirit]

Can anyone here speak to the longevity of their engine with a fairly low level tune on it? I know you got to pay to play but just wondering if anyone's got experience with a long-term tune. I'm considering BM3 stage 1. Thanks