THE LARGEST BMW 2-SERIES FORUM ON THE PLANET
2Addicts
2Addicts
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
2Addicts | BMW 2-Series forum Technical Topics Tracking / Autocrossing Track videos (Track Sprint, Track day, Auto X)

Post Reply
 
Thread Tools Search this Thread
      08-07-2021, 11:20 AM   #1
TajoMan
Lieutenant
TajoMan's Avatar
174
Rep
400
Posts

Drives: M240 xdrive, X3M40i
Join Date: Mar 2017
Location: Chicago, IL

iTrader: (0)

Track videos (Track Sprint, Track day, Auto X)

Started new thread for my track videos.
Previous thread was started about tire but getting into more toward to the track stuff.
https://www.2addicts.com/forums/show...1515198&page=5

Here are the last 2 Track Sprint events I went.




I could not improve my previous best time. It seems that I had to turn the steering way more for the same turn.

I found out later that the Kmac camber adjustable bush was loose... WTF
So the camber was going all over, and as a result, the toe was all messed up.
(actually, I should say that I got lucky that it did not do any serious damage)

I tighten everything up that weekend and it seems all fine now.
I will be checking the bush on every wheel/tire change.


This is the yesterday's event.


I cut 1.5sec from my previous best time.
The slightly annoying part is the time does not improve as the day goes any more. (I got 47.xxx 7 times out of 10 runs. fastest time was on run 3)

I guess this is the point that ppl think about "what do I need to upgrade on my car". lol

For me, I just want to try different tire but this RS4 is not wearing out at all.
It feels like it's lasting at least 3 times more than RE71r.
Appreciate 1
msendit415.50
      08-07-2021, 12:00 PM   #2
msendit
First Lieutenant
msendit's Avatar
416
Rep
321
Posts

Drives: M240i
Join Date: May 2018
Location: San Francisco, CA

iTrader: (0)

Quote:
Originally Posted by TajoMan View Post
Started new thread for my track videos.

I found out later that the Kmac camber adjustable bush was loose... WTF
So the camber was going all over, and as a result, the toe was all messed up.
(actually, I should say that I got lucky that it did not do any serious damage)

For me, I just want to try different tire but this RS4 is not wearing out at all.
It feels like it's lasting at least 3 times more than RE71r.
Ooof yea, variable toe is no fun. At least you had it on a front wheel -- the worst that can happen there is more pushing... A couple of months ago, I had a rear toe link get loose in the same way -- any hint of a bump or trail brake, the car would try to come around (and succeeded once). Fun times.

And yeah, RS4s are indestructible. I haven't managed to destroy the thread depth on a set yet either. They do get much much slower (heatcycling?) after a while though, despite the thread being there.
Appreciate 0
      08-07-2021, 01:30 PM   #3
TajoMan
Lieutenant
TajoMan's Avatar
174
Rep
400
Posts

Drives: M240 xdrive, X3M40i
Join Date: Mar 2017
Location: Chicago, IL

iTrader: (0)

Quote:
Originally Posted by msendit View Post
They do get much much slower (heatcycling?) after a while though, despite the thread being there.
Good to know.
So I have excuse to ditch the tire with usable thread left.
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



All times are GMT -5. The time now is 03:34 PM.




2addicts
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