BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Track / Autocross / Dragstrip / Driving Techniques
 
BPM Sport
Post Reply
 
Thread Tools Search this Thread
      09-10-2012, 12:11 AM   #1
forced03
New Member
0
Rep
10
Posts

 
Drives: M3
Join Date: May 2012
Location: San Francisco

iTrader: (0)

First time at Infineon/Sears Point- Please Critique Video

What am I doing right? What am I doing wrong?

First time at Infineon this weekend and had a blast. Have 2 prior days at Thunderhill so not much experience and have a lot to learn. MDM mode. DCT e90 m3- all stock but exhaust. 2:06 was my best, followed by a bunch of 2:08ish times.

Experienced some vibration during braking so wasn't fully confident with brakes. Vibration is now felt after track day on the street so need to look into it.

Debating turning traction control off next time since I definitely felt it kick in a few times when I didn't want it to. However, also felt it kick in at Thunderhill and pretty sure it kept me on the track.. When/where is the right time to turn it fully off?

Appreciate 0
      09-10-2012, 03:38 AM   #2
kaiv
Major
United_States
24
Rep
1,237
Posts

 
Drives: E92 M3
Join Date: Mar 2010
Location: San Diego, CA

iTrader: (15)

I think you did pretty well!

I am no pro driver so take my advice for what it's worth! but let me tell you a couple places where my line differs the most from yours:

_I usually stay left into turn 1 longer, turn into turn 2 a bit later and track out more

_turn 7: I personally like to take one single late apex instead of a double (early and late) apex. I feel it works better for this big heavy car the E9x is.
Then I "cut" and drive over those flat curbs (1:20ish in your video)

_turn 8A: you can use all the track and track out all the way to the left side of the track

_turn 10: I set up more to the left, apex, then track out more to the left

As for when is the right time to turn off DSC; only you can answer that question I would say when you are comfortable enough and feel it is really slowing you down.

Nice vid!
Appreciate 0
      09-10-2012, 03:30 PM   #3
OC3
Havin' a blast!
OC3's Avatar
United_States
53
Rep
4,819
Posts

 
Drives: 2013 M3 E92 Jerez Blk DCT ZCP
Join Date: Nov 2010
Location: SoCal

iTrader: (1)

+1 on did pretty well.
__________________

BRP CW13 1:56 | CVR CW 2:01 | CVR CCW 2:02 | ACS 1:53 | WSIR 1:34
2013 E92 M3 Jerez Black DCT ZCP | JRZ RS Pro | Brembo | Endless | Volk TE37 18x10.5 squared | NT01/TD/ContiGrandAm | no other mods, nor weight shavings
Appreciate 0
      09-10-2012, 06:16 PM   #4
Car54
Captain
10
Rep
899
Posts

 
Drives: 1999 Z3 Mcoupe | 2008 M3/4
Join Date: Sep 2007
Location: Lutz, FL

iTrader: (1)

Next time try to get you in the video. I don't know the track (just tv) but seeing how you react and handle the car is probably more important at your level than the line and lap times.

That would be the only way I think you can get honest advice about you handling the DSC job.
__________________
Appreciate 0
      09-10-2012, 08:45 PM   #5
bigjae1976
That's what she said...
bigjae1976's Avatar
84
Rep
5,634
Posts

 
Drives: 11 E90 M3 Individual
Join Date: Mar 2006
Location: Milwaukee, WI

iTrader: (12)

Garage List
2004 BMW M3  [4.50]
2011 BMW E90 M3  [5.00]
2013 BMW 328i  [5.00]
Quote:
Originally Posted by Car54 View Post
Next time try to get you in the video. I don't know the track (just tv) but seeing how you react and handle the car is probably more important at your level than the line and lap times.

That would be the only way I think you can get honest advice about you handling the DSC job.
+1. I usually put my go pro behind the driver's window on the outside. I've found that you need to about at least 1/3 of the way up the window or you get a nice shot of your side view. You can see your hands, head, and where you are on the track. I've learned a lot from watching my own videos.

And if I'm not sleepy, I'll be out cold after about 10 minutes of watching track videos.

__________________


Sponsored by Momentum BMW #593...We Bleed BMW BLUE!
Appreciate 0
      09-10-2012, 09:18 PM   #6
paradocs98
Major
paradocs98's Avatar
United_States
31
Rep
1,347
Posts

 
Drives: 2014 991 Carrera S
Join Date: May 2009
Location: NY

iTrader: (0)

Great track! Looks like a higher-speed, scaled-up version of an autocross circuit!
__________________
IB E90 M3 ZCP returned to BMW FS
Appreciate 0
      09-11-2012, 12:14 AM   #7
forced03
New Member
0
Rep
10
Posts

 
Drives: M3
Join Date: May 2012
Location: San Francisco

iTrader: (0)

Thanks for all the feedback. I hope to get out again in a month or so and build on last experience.
Appreciate 0
      09-12-2012, 11:12 AM   #8
414bhp
Private First Class
0
Rep
98
Posts

 
Drives: E90 M3
Join Date: Dec 2010
Location: SF

iTrader: (0)

Nice video forced03. I would second the suggestions kaiv made.

If you want a point of comparison, you can check out this video I made at Sears Point. I have my track notes written in for the first lap, so you can see what I am thinking/aiming for in each corner.


Good luck!
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Forum Jump


All times are GMT -5. The time now is 01:51 PM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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