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      11-09-2021, 01:19 AM   #1
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first ever track day in the G80

I went to Streets of Willow (CW) this Saturday for the first time (ever) in the G80. Incredible experience. Car was completely bone stock and handled great. No issues.

The instructor was really impressed by how capable the car was (even at the hands of a mediocre driver like myself lol). Best lap time was 1:30:15.

My only complaint was that the P Zeros started to lose a ton of grip after about 5 laps or over 150F, but perhaps someone with more track experience can speak to that or why that is.

Anyways, let's get to the good stuff.




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      11-11-2021, 02:45 PM   #2
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Very nice! It seems like you had a great time!

M3s of all generations are the perfect jack of all trades. In a single car you can tear it up at the track and then drop your kids off at school, pick up your inlaws from the airport, etc etc

The tires that come with the car are not designed for the track. There are some track worthy tires that are perfectly streetable, like the RS4, RT660, RE71, A052, etc etc. Those will maintain their performance with more extended track use and are friendly enough to drive every day
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      11-11-2021, 08:57 PM   #3
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Quote:
Originally Posted by mlc50 View Post
My only complaint was that the P Zeros started to lose a ton of grip after about 5 laps or over 150F, but perhaps someone with more track experience can speak to that or why that is.
Maybe your pressures were too high? I found the most grip was around 150-170 F.

Quote:
Originally Posted by SYT_Shadow View Post
M3s of all generations are the perfect jack of all trades. In a single car you can tear it up at the track and then drop your kids off at school, pick up your inlaws from the airport, etc etc
Have you ordered your G80 yet?
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      11-12-2021, 08:53 AM   #4
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You need to manage your tire pressures. Buy yourself a good tire pressure gauge and let some air out when they over heat

The turn to jelly when hot and pressure gets too
High

PZeros are perfectly fine for someone doing their first or occasional track day. No need for
Track tires at this point. Invest in your driving skills first with more track days and instruction

Track tires will over heat too and need to their pressures to be managed carefully also
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      11-13-2021, 12:15 AM   #5
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Quote:
Originally Posted by Ximian View Post
Maybe your pressures were too high? I found the most grip was around 150-170 F.



Have you ordered your G80 yet?
I also kinda realized I made this mistake after the fact. Was running 33-32PSI cold so probably like 37-40 hot *facepalm*. What pressure do you run cold before hopping on the track?
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      11-13-2021, 12:20 AM   #6
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Quote:
Originally Posted by SYT_Shadow View Post
Very nice! It seems like you had a great time!

M3s of all generations are the perfect jack of all trades. In a single car you can tear it up at the track and then drop your kids off at school, pick up your inlaws from the airport, etc etc

The tires that come with the car are not designed for the track. There are some track worthy tires that are perfectly streetable, like the RS4, RT660, RE71, A052, etc etc. Those will maintain their performance with more extended track use and are friendly enough to drive every day
Thank you! Bucket list experience for sure.

I realized I was not managing my PSI correctly, but still in my newb opinion I agree. These P Zeros overheat/degrade very quickly on a more tight/technical track.
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      11-13-2021, 12:21 AM   #7
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Quote:
Originally Posted by mlc50 View Post
I also kinda realized I made this mistake after the fact. Was running 33-32PSI cold so probably like 37-40 hot *facepalm*. What pressure do you run cold before hopping on the track?
BMW says not go below 27 so started with that after the initial warm up. I got it up to a good warm temperature (150F) and readjusted to below the stock pressure so when hot, it'll be at the stock pressure. Took 2-3 stops into the hot pits to get the just the right pressure, but I got the hang of it quickly afterwards for the next days. Just can't let the tires cool off otherwise you'll be below 27 PSI.

You do have the pressure and temperature monitoring screen on the car - isn't it one of the default views in Sport mode?
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      11-13-2021, 12:27 AM   #8
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Quote:
Originally Posted by Ximian View Post
BMW says not go below 27 so started with that after the initial warm up. I got it up to a good warm temperature (150F) and readjusted to below the stock pressure so when hot, it'll be at the stock pressure. Took 2-3 stops into the hot pits to get the just the right pressure, but I got the hang of it quickly afterwards for the next days. Just can't let the tires cool off otherwise you'll be below 27 PSI.

You do have the pressure and temperature monitoring screen on the car - isn't it one of the default views in Sport mode?
Thank you that's helpful.

Yup I had it open I just have a poor memory lol.

So you're shooting for stock temps (33 - 32PSI) while the tires are hot? I guess I figured the cold temps were already factoring in some buffer for heating up.
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      11-13-2021, 08:29 AM   #9
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Tire operating ranges are dependent on the weight of your vehicle and the tire optimal grip temps.

The optimal temperature is static so the manufacturer would specify the right hot temp, then you need to take temperatures across the tread to see of youre over or under inflated. Hi temps in middle too high, etc..

Cold pressure is just a reference starting point.

I.e on my Michelin cup2 the optimal temp range is 180-200. And pressure for the g82 load range is 32- 33 psi hot as provided by jackson motorsports

In order to achieve that, I need to start at 26 cold. Another way is to start at 30 cold and continuously air down as the tire heats up.

When the tires get to 220 and higher they have much lower grip, so temp management is key.


Also, the in car tire temps are about 15 degrees lower than tire surface temps. The in wheel sensor is reading air temp inside the wheel. I have cup2 connects with the sensors on the tire and they measure hotter always. So you need to add about 15 degrees to what tpms reports

Edit, you should also chalk you shoulders to see if your wearing to the right spot, too low add pressure, too high, reduce.
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      12-09-2021, 12:30 PM   #10
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Quote:
Originally Posted by beachBmmr View Post
Tire operating ranges are dependent on the weight of your vehicle and the tire optimal grip temps.

The optimal temperature is static so the manufacturer would specify the right hot temp, then you need to take temperatures across the tread to see of youre over or under inflated. Hi temps in middle too high, etc..

Cold pressure is just a reference starting point.

I.e on my Michelin cup2 the optimal temp range is 180-200. And pressure for the g82 load range is 32- 33 psi hot as provided by jackson motorsports

In order to achieve that, I need to start at 26 cold. Another way is to start at 30 cold and continuously air down as the tire heats up.

When the tires get to 220 and higher they have much lower grip, so temp management is key.


Also, the in car tire temps are about 15 degrees lower than tire surface temps. The in wheel sensor is reading air temp inside the wheel. I have cup2 connects with the sensors on the tire and they measure hotter always. So you need to add about 15 degrees to what tpms reports

Edit, you should also chalk you shoulders to see if your wearing to the right spot, too low add pressure, too high, reduce.
this is golden set of tips.

Thank you.
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      03-15-2022, 06:58 PM   #11
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I was at SOW Sunday running CW (Saturday was CCW)! It was my second track day on my practically stock G82 with PSI Midpipe, but I've been to SOW and regional tracks many times in my F80.

I usually start at 28 cold and then adjust to 33-34 hot after the first 3 laps. On street tires, every 3-4 laps I do a cool down lap, minimal brakes, minimal speed to cool the tires a bit, especially if it's starting to get greasy. Monitor your temps and pressure immediately after each session.

Anyway, SOW is a really great technical track, and even better now that it's been re-paved! Try CW next time to approach the chicane from the other side... very interesting!



I managed a 01:27.79, beating my modified F80 M3 CS by almost 2 seconds. The G8X is GREAT on the track!

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      03-15-2022, 09:43 PM   #12
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Amen! And nice video!

By the way, Your car sounds awesome. Only the mid pipe? So that’s 2nd cat gone and first resonator but stock muffler, correct?

Also! 2 sec over your F80 CS is quite amazing.
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      03-15-2022, 11:29 PM   #13
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Quote:
Originally Posted by Mrspeed636 View Post
Amen! And nice video!

By the way, Your car sounds awesome. Only the mid pipe? So that's 2nd cat gone and first resonator but stock muffler, correct?

Also! 2 sec over your F80 CS is quite amazing.
Yes only the midpipe. Secondary cats and resonators are deleted. Stock muffler. The mic is on the rear bumper so it sound a bit louder than it does in the cabin or 50 feet away!
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      03-16-2022, 08:20 AM   #14
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Did your temp gauge move much?
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      03-16-2022, 09:32 AM   #15
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Did your temp gauge move much?
For my track day, temp was steady. The F80 and G80 both do oil cooling very well. It's the brakes that need help.
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      03-16-2022, 10:36 AM   #16
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Quote:
Originally Posted by jmg View Post
I was at SOW Sunday running CW (Saturday was CCW)! It was my second track day on my practically stock G82 with PSI Midpipe, but I've been to SOW and regional tracks many times in my F80.

I managed a 01:27.79, beating my modified F80 M3 CS by almost 2 seconds. The G8X is GREAT on the track!
Great sounding video. I have PSI on stock cat back, and its loud against pit wall, but this is nice sound capture.

About the driving - Here is my never driven it, back seat driver take..Apply salt liberally...

it looks like you can go faster through the first sweeper, stay left and open up the entry and late apex the first turn.

The chicane complex you're pulling under 1 lateral g, I bet you have more grip here to use - go faster! Same through sweeper #2 before the hard right hander and use all the track, you should be on power through that entire right turn throttle steering out to the edge of the track.

Back straight you're babying it! a lot more speed there to get through those sweeping chicanes and try not to punch the throttle at the end.

Last turn before pit straight looks like a late apex where you want to get the car pointed down track quickly and almost oversteer it through, you should experiment with a wider line early and get back to power mid corner to improve your top speed down the front straight. Also looks like you lost traction right at the cone perhaps its track defect..

Are you driving it 2wd?

Nice laps..
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      03-16-2022, 10:56 AM   #17
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Quote:
Originally Posted by beachBmmr View Post
Quote:
Originally Posted by jmg View Post
I was at SOW Sunday running CW (Saturday was CCW)! It was my second track day on my practically stock G82 with PSI Midpipe, but I've been to SOW and regional tracks many times in my F80.

I managed a 01:27.79, beating my modified F80 M3 CS by almost 2 seconds. The G8X is GREAT on the track!
Great sounding video. I have PSI on stock cat back, and its loud against pit wall, but this is nice sound capture.

About the driving - Here is my never driven it, back seat driver take..Apply salt liberally...

it looks like you can go faster through the first sweeper, stay left and open up the entry and late apex the first turn.

The chicane complex you're pulling under 1 lateral g, I bet you have more grip here to use - go faster! Same through sweeper #2 before the hard right hander and use all the track, you should be on power through that entire right turn throttle steering out to the edge of the track.

Back straight you're babying it! a lot more speed there to get through those sweeping chicanes and try not to punch the throttle at the end.

Last turn before pit straight looks like a late apex where you want to get the car pointed down track quickly and almost oversteer it through, you should experiment with a wider line early and get back to power mid corner to improve your top speed down the front straight. Also looks like you lost traction right at the cone perhaps its track defect..

Are you driving it 2wd?

Nice laps..
I've definitely left a lot of time on the track! Thanks for the tip, I know there is a lot of grip left, it's just a matter of nerve to actually do it!

I agree with everything you said.

Turn 1 I am too slow. I think a small lift will suffice, I'm actually braking into it.

Turn 2 I was too much to the right. I need to be more left.

Turn 3 and 4 has a lot of grip left

I've gone faster through the bowl on other laps. It's actually a double apex turn and I'm conservative through it.

The blind chicane is tricky. I've spun there at 100mph before so it's psychological. I've gone from braking into it to lifting into it now. I need to go to throttle maintenance and work my way up to powering though it. The following hard left is a fast corner and I babied it that day.

The last turn into the front straight I had been playing with all day. How far left can I go before I'm just making the track bigger than it would be? Later in the day, I found a mark on the left of the track to hit before I start turning in for the late apex later and was a few tenths quicker.

I think I can get a 1:25 with these tips in mind. A 1:22 by the end of the year and I'll be ecstatic!

It always frustrating yet educating to watch these videos. You see all the mistakes and what you should have done! That's what makes it useful and addicting to go back and try and do better.
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      03-16-2022, 11:03 AM   #18
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Quote:
Originally Posted by jmg View Post
Quote:
Originally Posted by beachBmmr View Post
Quote:
Originally Posted by jmg View Post
I was at SOW Sunday running CW (Saturday was CCW)! It was my second track day on my practically stock G82 with PSI Midpipe, but I've been to SOW and regional tracks many times in my F80.

I managed a 01:27.79, beating my modified F80 M3 CS by almost 2 seconds. The G8X is GREAT on the track!
Great sounding video. I have PSI on stock cat back, and its loud against pit wall, but this is nice sound capture.

About the driving - Here is my never driven it, back seat driver take..Apply salt liberally...

it looks like you can go faster through the first sweeper, stay left and open up the entry and late apex the first turn.

The chicane complex you're pulling under 1 lateral g, I bet you have more grip here to use - go faster! Same through sweeper #2 before the hard right hander and use all the track, you should be on power through that entire right turn throttle steering out to the edge of the track.

Back straight you're babying it! a lot more speed there to get through those sweeping chicanes and try not to punch the throttle at the end.

Last turn before pit straight looks like a late apex where you want to get the car pointed down track quickly and almost oversteer it through, you should experiment with a wider line early and get back to power mid corner to improve your top speed down the front straight. Also looks like you lost traction right at the cone perhaps its track defect..

Are you driving it 2wd?

Nice laps..
I've definitely left a lot of time on the track! Thanks for the tip, I know there is a lot of grip left, it's just a matter of nerve to actually do it!

I agree with everything you said.

Turn 1 I am too slow. I think a small lift will suffice, I'm actually braking into it.

Turn 2 I was too much to the right. I need to be more left.

Turn 3 and 4 has a lot of grip left

I've gone faster through the bowl on other laps. It's actually a double apex turn and I'm conservative through it.

The blind chicane is tricky. I've spun there at 100mph before so it's psychological. I've gone from braking into it to lifting into it now. I need to go to throttle maintenance and work my way up to powering though it. The following hard left is a fast corner and I babied it that day.

The last turn into the front straight I had been playing with all day. You are correct, I'm faster with a late apex there. I found a mark on the left of the track to hit before I start turning in for the late apex later in the day and was a few tenths faster.

I think I can get a 1:25 with these tips in mind. A 1:22 by the end of the year and I'll be ecstatic!
Video and data analysis is helpful, but not as much as a passenger in the car barking to go faster. I am just starting to drive at the limits of grip and then only in a few corners after really working it out and feeling the edge with a coach. It will take me several coaching sessions to put together an entire fast lap.
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      05-19-2022, 12:44 PM   #19
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Quote:
Originally Posted by mlc50 View Post
I went to Streets of Willow (CW) this Saturday for the first time (ever) in the G80. Incredible experience. Car was completely bone stock and handled great. No issues.

The instructor was really impressed by how capable the car was (even at the hands of a mediocre driver like myself lol). Best lap time was 1:30:15.
Please feel free to add this time, or any updates since then to the Official G8X Road Course Lap Times thread!
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