BMW Garage BMW Meets Register Today's Posts
BMW M2 Forum > M2 Photos, Videos and Builds > BMW M2 Car and Driver Lightning Lap Review and Video

Post Reply
 
Thread Tools Search this Thread
      09-15-2016, 03:40 PM   #23
rjn
Private First Class
United_States
44
Rep
123
Posts

Drives: 2017 M2
Join Date: Feb 2016
Location: Midwest

iTrader: (0)

Quote:
Originally Posted by M3 Adjuster View Post
Yes. And when your car comes out of a corner and it's in the wrong gear, then a shift is needed , versus a car in the correct gear that doesn't need to shift.
I hear you. Really, I do. Certainly a possibility.

But, with ruler a flat torque curve, less likely than back in the day (e.g. remember above or below the S52 4500 vanos rpm?), and the DCT 7th cog is not likely in play at most tracks.

And it's still just talk and conjecture on my part. I'm not arguing. Really looking forward to finding out for real after delivery.

Peace
Appreciate 1
      09-15-2016, 04:17 PM   #24
M3 Adjuster
Banned
Albania
7909
Rep
11,785
Posts

Drives: 1M, X1 M Sport, E46 325ic
Join Date: Mar 2008
Location: Dallas, Tx

iTrader: (0)

Quote:
Originally Posted by rjn
Quote:
Originally Posted by M3 Adjuster View Post
Yes. And when your car comes out of a corner and it's in the wrong gear, then a shift is needed , versus a car in the correct gear that doesn't need to shift.
I hear you. Really, I do. Certainly a possibility.

But, with ruler a flat torque curve, less likely than back in the day (e.g. remember above or below the S52 4500 vanos rpm?), and the DCT 7th cog is not likely in play at most tracks.

And it's still just talk and conjecture on my part. I'm not arguing. Really looking forward to finding out for real after delivery.

Peace
I don't have the answer either, and I would love to see some back to back tests of DCT vs manual.

If you have seen of the comments about the M2 and the M235/240 and looked at the gearing of the two, it has already been shown that the top speed of the seven speed DCT M2 in fourth gear is about 8-10 mph lower than the six speed in the m235/240. The non m car is actually faster ...
Appreciate 1
rjn43.50
      09-15-2016, 04:48 PM   #25
tke743
Major
tke743's Avatar
United_States
739
Rep
1,066
Posts

Drives: LBB M2 Comp
Join Date: Aug 2014
Location: Massachusetts

iTrader: (5)

LOL, even in the video you can't see the dials...
__________________
Formerly - "That Guy" in the purple BMW
Appreciate 0
      09-15-2016, 10:27 PM   #26
MINI135i
Second Lieutenant
139
Rep
268
Posts

Drives: 2019 M2C and 2013 FR-S
Join Date: Jun 2008
Location: Phoenix, AZ

iTrader: (2)

Bill don't need no shuffle steer

https://youtu.be/qvYsMyumOI8

We are kinda picking on this journalist in good fun, but truly his lap speed, was probably more or less in line with what it should be as you make comparisons to other cars, E92 M3, M4, etc. in the past CD lighting laps.

So I must ask since it was stated that shuffle steer is being taught by track instructors...WHY? To what advantage? The only thing I can fathom is the instructors want them to be better at transitioning back to street driving after the track session

Last edited by MINI135i; 09-15-2016 at 11:58 PM..
Appreciate 0
      09-16-2016, 08:26 AM   #27
M2 CSL
Lieutenant
No_Country
447
Rep
429
Posts

Drives: M2 Lightweight
Join Date: Sep 2015
Location: a particular place or position

iTrader: (0)

Quote:
Originally Posted by MINI135i View Post
Bill don't need no shuffle steer

https://youtu.be/qvYsMyumOI8

We are kinda picking on this journalist in good fun, but truly his lap speed, was probably more or less in line with what it should be as you make comparisons to other cars, E92 M3, M4, etc. in the past CD lighting laps.

So I must ask since it was stated that shuffle steer is being taught by track instructors...WHY? To what advantage? The only thing I can fathom is the instructors want them to be better at transitioning back to street driving after the track session
Yes, it's definitely what it, "should" be, however, certainly not what it could be.

"The M2 should be a few seconds behind the M4" - Bill Auberlen, the first day of the Lightning lap test.

"Got it" - C&D editors
Appreciate 0
      09-16-2016, 11:11 AM   #28
ashburyn54
Captain
ashburyn54's Avatar
625
Rep
796
Posts

Drives: f87 M2
Join Date: Jun 2014
Location: dayton

iTrader: (0)

Quote:
Originally Posted by paradoxical3
Quote:
Originally Posted by Robin_NL View Post
Not trying to be rude, but we are sitting in front of a PC/laptop/ iPad watching this video, and HE is driving the damn thing.

He is cautious and I understand...

On paper/internet we 'all' are faster than 'that guy'...

Cheers
Robin

It's not difficult to be faster than that guy, there are many of us on these forums that are.

Quote:
I've had the same experience on my M3 PSS as C&D. Keep the pressures down and they are very consistent. Anything over 36-37 hot and they'll get slippery. If you don't drop a couple psi from your street pressures you'll definitely be overheating them. I'm not the absolute fastest guy out there, but I'm very far from slow.
I will caveat this by saying I have not tracked on the M2 specific variant of the PSS, and I acknowledge there may be a compound difference. But the normal PSS tires will chunk and delaminate if driven past the intermediate level unless you alternate hot laps with a couple of cool down laps. They absolutely can't run 30min sessions driven by an advanced driver without falling off and getting greasy.
I can attest to that. Even with cold temps in the high 20's when they start creeping towards 37-38psi they change character on track. That's about every 4-5 laps once they are warm. You have to back off for some time then hit it agin. Although I will say the wear wasn't awful, the fronts of course wore more on the shoulders but we all know this car needs camber up front. I kinda gave up trying to get more speed through the slow stuff because they just scrub.

I'm sure with 265/275's up front this car is a different beast. Severely tire limited in the slow stuff if your trying to be smooth/not throttle steer with your instructor yelling at you.
Appreciate 0
      09-16-2016, 01:42 PM   #29
CosmosMpower
Brigadier General
CosmosMpower's Avatar
2052
Rep
3,714
Posts

Drives: F87c, GT3, MK7 GTI
Join Date: Apr 2011
Location: Frisco, TX

iTrader: (1)

Quote:
Originally Posted by MINI135i View Post
Bill don't need no shuffle steer

https://youtu.be/qvYsMyumOI8

We are kinda picking on this journalist in good fun, but truly his lap speed, was probably more or less in line with what it should be as you make comparisons to other cars, E92 M3, M4, etc. in the past CD lighting laps.

So I must ask since it was stated that shuffle steer is being taught by track instructors...WHY? To what advantage? The only thing I can fathom is the instructors want them to be better at transitioning back to street driving after the track session
I don't know any instructors who teach shuffle steer unless you HAVE to from a physical limitation or an extremely tight corner.
Appreciate 0
      09-16-2016, 04:21 PM   #30
Racer20
Major
United_States
1030
Rep
1,191
Posts

Drives: F80 M3, 228i THP, E46 ZHP
Join Date: May 2009
Location: Ann Arbor, MI

iTrader: (0)

Quote:
Originally Posted by paradoxical3
Quote:
Originally Posted by Robin_NL View Post
Not trying to be rude, but we are sitting in front of a PC/laptop/ iPad watching this video, and HE is driving the damn thing.

He is cautious and I understand...

On paper/internet we 'all' are faster than 'that guy'...

Cheers
Robin

It's not difficult to be faster than that guy, there are many of us on these forums that are.

Quote:
I've had the same experience on my M3 PSS as C&D. Keep the pressures down and they are very consistent. Anything over 36-37 hot and they'll get slippery. If you don't drop a couple psi from your street pressures you'll definitely be overheating them. I'm not the absolute fastest guy out there, but I'm very far from slow.
I will caveat this by saying I have not tracked on the M2 specific variant of the PSS, and I acknowledge there may be a compound difference. But the normal PSS tires will chunk and delaminate if driven past the intermediate level unless you alternate hot laps with a couple of cool down laps. They absolutely can't run 30min sessions driven by an advanced driver without falling off and getting greasy.
I'll also add a caveat that the club I run with only does ~20 minutes sessions. I'm pretty sure the C&D guys are also not running continuously for 30 minutes.
__________________
2015 M3, 2005 330i ZHP, 2015 228i 6MT Track Handling Pack, 2007 M Coupe (Sold)
Appreciate 0
      09-16-2016, 10:22 PM   #31
rich8566
Major
rich8566's Avatar
United_States
609
Rep
1,124
Posts

Drives: M2 + Z-4
Join Date: Sep 2007
Location: FL

iTrader: (0)

Garage List
2014 BMW M235i  [0.00]
Wear - what wear?

Quote:
Originally Posted by ashburyn54
Quote:
Originally Posted by paradoxical3
Quote:
Originally Posted by Robin_NL View Post
Not trying to be rude, but we are sitting in front of a PC/laptop/ iPad watching this video, and HE is driving the damn thing.

He is cautious and I understand...

On paper/internet we 'all' are faster than 'that guy'...

Cheers
Robin

It's not difficult to be faster than that guy, there are many of us on these forums that are.

Quote:
I've had the same experience on my M3 PSS as C&D. Keep the pressures down and they are very consistent. Anything over 36-37 hot and they'll get slippery. If you don't drop a couple psi from your street pressures you'll definitely be overheating them. I'm not the absolute fastest guy out there, but I'm very far from slow.
I will caveat this by saying I have not tracked on the M2 specific variant of the PSS, and I acknowledge there may be a compound difference. But the normal PSS tires will chunk and delaminate if driven past the intermediate level unless you alternate hot laps with a couple of cool down laps. They absolutely can't run 30min sessions driven by an advanced driver without falling off and getting greasy.
I can attest to that. Even with cold temps in the high 20's when they start creeping towards 37-38psi they change character on track. That's about every 4-5 laps once they are warm. You have to back off for some time then hit it agin. Although I will say the wear wasn't awful, the fronts of course wore more on the shoulders but we all know this car needs camber up front. I kinda gave up trying to get more speed through the slow stuff because they just scrub.

I'm sure with 265/275's up front this car is a different beast. Severely tire limited in the slow stuff if your trying to be smooth/not throttle steer with your instructor yelling at you.
MPSS after a few hot laps at Pocono. While these tires stick well and have great feel, they do roll over and wear.
Attached Images
 
__________________
Current: 2017 ///M2 manual 2004 E85 Z-4 manual
Appreciate 0
      09-18-2016, 06:45 AM   #32
Bamaben
Major
Bamaben's Avatar
183
Rep
1,082
Posts

Drives: 07 335i blk/blk/alum 6MT
Join Date: Jun 2010
Location: Bimmertown

iTrader: (0)

Quote:
Originally Posted by paradoxical3
Who is this dude driving? Shuffle steering, late throttle application, etc? Hands not even in 9 and 3 position most of the time. I figured C&D would have had a racer drive the cars to get real lap times, this pretty much invalidates them all.
Terrible. Shuffle steering to just turn it 5 degrees? !
__________________


It takes a big man to cry. It takes an even bigger man to laugh at him-- Jack Handey

mods: blackout grill, finishing rods, badges, Blacklines.
Appreciate 0
      09-18-2016, 08:37 PM   #33
SGL
Private First Class
SGL's Avatar
United_States
122
Rep
140
Posts

Drives: Alpine M2
Join Date: May 2015
Location: Minnesota

iTrader: (0)

Garage List
2016 M2  [0.00]
Quote:
Originally Posted by Racer20
Quote:
Originally Posted by paradoxical3
Quote:
Originally Posted by Robin_NL View Post
Not trying to be rude, but we are sitting in front of a PC/laptop/ iPad watching this video, and HE is driving the damn thing.

He is cautious and I understand...

On paper/internet we 'all' are faster than 'that guy'...

Cheers
Robin

It's not difficult to be faster than that guy, there are many of us on these forums that are.

Quote:
I've had the same experience on my M3 PSS as C&D. Keep the pressures down and they are very consistent. Anything over 36-37 hot and they'll get slippery. If you don't drop a couple psi from your street pressures you'll definitely be overheating them. I'm not the absolute fastest guy out there, but I'm very far from slow.
I will caveat this by saying I have not tracked on the M2 specific variant of the PSS, and I acknowledge there may be a compound difference. But the normal PSS tires will chunk and delaminate if driven past the intermediate level unless you alternate hot laps with a couple of cool down laps. They absolutely can't run 30min sessions driven by an advanced driver without falling off and getting greasy.
I'll also add a caveat that the club I run with only does ~20 minutes sessions. I'm pretty sure the C&D guys are also not running continuously for 30 minutes.
The star spec super sports feel great if you can keep the psi around 34-35 psi, once they get above that they feel greasy, I didn't have any chunking on my tires until the left side of my front left tire delaminated at 145mph during the last 40 minute session of the day. Tire still stayed together and I was able to drive it home 120 miles. Very impressed with the tire.
Appreciate 0
Post Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 01:28 PM.




m2
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST