MotoHouston.com MotoHouston.com
Register Members List Member Map Media Calendar Garage Forum Home Mark Forums Read

Go Back   MotoHouston.com > General Discussion > Taking it to the Track
Forgot info?

Welcome to MotoHouston.com! You are currently viewing our forums as a guest which gives you limited access to the community. By joining our free community you will have access to great discounts from our sponsors, the ability to post topics, communicate privately with other members, respond to polls, upload content, free email, classifieds, and access many other special features. Registration is fast, simple and absolutely free, join our community!

Register Today!

If you have any problems with the registration process or your account login, please contact us.


Like us on Facebook! Regular shirt GIVEAWAYS and more

Reply
Share This Thread: 
Subscribe to this Thread Thread Tools
Old 10-19-2009, 10:44 AM   #1
maxgs
Guest
 
Posts: n/a







Member Garage





TWS (Texas World Speedway): Alonso vs Brandt... Data Analysis

..

Last edited by dudewhrsmybike; 10-19-2009 at 06:57 PM. Reason: fixed broken link
  Reply With Quote
Similar Topics
Thread Thread Starter Forum Replies Last Post
TWS (Texas World Speedway) on Gixxer with Data Acquisition maxgs General Discussion (Moto Related) 2 12-03-2009 11:39 AM
Comparing CDill and Alonso at TWS (Texas World Speedway) with Data Acquisition maxgs Taking it to the Track 13 11-12-2009 12:00 AM
SpiderMonkey @ TWS (Texas World Speedway) with Data Acquisition maxgs General Discussion (Moto Related) 9 07-20-2009 10:50 PM
Advertisement
Old 10-19-2009, 10:50 AM   #2
tomLSTD
LSTD Mob Cappo
 
tomLSTD's Avatar
 
Join Date: Aug 2006
Feedback Rating: (2)
Posts: 6,798

Experience: 1-3 months
Trackdays: 1






Member Garage





Very cool information there. Not a lot of difference in the graphs given a disparity of 4-5 seconds per lap which is interesting.
__________________
I am Tyler Durdin's bad attitude.
tomLSTD is offline   Reply With Quote
Old 10-19-2009, 10:53 AM   #3
cdill35
717
 
cdill35's Avatar
 
Join Date: Apr 2008
Location: Cypress
Feedback Rating: (5)
Posts: 9,586

Experience: 10+ years
Trackdays: 10+

Bike(s):
2014 Phoenix 921 Pro XP w/ Merc 250 ProXS
11 Yam Zuma 125
Specialized Stumpy







Curt, what would my hypothectical have been? That race?

And BTW, I'll be reading this thing 10 times to take it all in. Unreal man.
cdill35 is offline   Reply With Quote
Old 10-19-2009, 10:55 AM   #4
maxgs
Guest
 
Posts: n/a







Member Garage





Quote:
Originally Posted by tomLSTD View Post
Very cool information there. Not a lot of difference in the graphs given a disparity of 4-5 seconds per lap which is interesting.
Hey Tom, the differences you see in the speed are actually pretty substantial. My inability to control the y-axis scale for speed makes it appear less significant. Any time you can see a wide gap between speeds at a particular location on the track, it's a good place to be examining.
  Reply With Quote
Old 10-19-2009, 10:59 AM   #5
tomLSTD
LSTD Mob Cappo
 
tomLSTD's Avatar
 
Join Date: Aug 2006
Feedback Rating: (2)
Posts: 6,798

Experience: 1-3 months
Trackdays: 1






Member Garage





Quote:
Originally Posted by maxgs View Post
Hey Tom, the differences you see in the speed are actually pretty substantial. My inability to control the y-axis scale for speed makes it appear less significant. Any time you can see a wide gap between speeds at a particular location on the track, it's a good place to be examining.
I'm intrigued to say the least!

One thing though, do you think that insetting the two graphs affects the graph? I'm just thinking a "circle" inset another "circle" changes the "circumference" and it actually looks like Gonzo is braking earlier and longer than Brandt in spots or makes them look closer by comparison.

Impressive toys you've got there Curt, I wish I could afford that kind of stuff (just because I like shiney objects and gadgets... ).
__________________
I am Tyler Durdin's bad attitude.
tomLSTD is offline   Reply With Quote
Old 10-19-2009, 11:00 AM   #6
maxgs
Guest
 
Posts: n/a







Member Garage





Quote:
Originally Posted by cdill35 View Post
Curt, what would my hypothectical have been? That race?

And BTW, I'll be reading this thing 10 times to take it all in. Unreal man.
1:51.6 was your theoretical fast lap.

Folks, let me explain what we are talking about. I have set up track segments on the GPX-Pro to split TWS (Texas World Speedway) into 6 segments. The theoretical fast lap is the sum of the fastest of each of those segments. Alonso's was only two tenths faster than his fastest recorded lap, plus he ran very close to his fastest lap twice. For the data acquisition geeks, that means Alonso's laps were very consistent.
  Reply With Quote
Old 10-19-2009, 11:04 AM   #7
maxgs
Guest
 
Posts: n/a







Member Garage





Quote:
Originally Posted by tomLSTD View Post
I'm intrigued to say the least!

One thing though, do you think that insetting the two graphs affects the graph? I'm just thinking a "circle" inset another "circle" changes the "circumference" and it actually looks like Gonzo is braking earlier and longer than Brandt in spots or makes them look closer by comparison.

Impressive toys you've got there Curt, I wish I could afford that kind of stuff (just because I like shiney objects and gadgets... ).
You have to be pretty careful in the examination of the red/green chart. When the line is red, it means the rider is slowing... not necessarily braking. If the line turns red before the other rider, he's definitely backing off the throttle earlier, at a minimum.

I get your point about the inset track lines. If the lines change colors in very close proximity, it might be debatable whether it's an optical distortion. However, when there is a significant deviation it is clear the rider either reduced throttle or picked up the throttle earlier.

-Curt
  Reply With Quote
Old 10-19-2009, 11:09 AM   #8
maxgs
Guest
 
Posts: n/a







Member Garage





The cool part about all this analysis is the ability to really pinpoint where a rider is slower or faster. It's very difficult to do this by simply following another rider. Now Brandt knows where he can get the most bang for his buck, trying to improve. Turn 2 is clearly the top of the list, followed by Turn 3 and turn 12. He can go out and ride and relax in the other corners, and focus on those three areas.
  Reply With Quote
Old 10-19-2009, 11:27 AM   #9
THE DEAN OF LEAN
CMRA/WERA #171 AMA#771
 
THE DEAN OF LEAN's Avatar
 
Join Date: Mar 2008
Location: Houston
Feedback Rating: (2)
Posts: 2,996

Experience: 3 years
Trackdays: 10+

Bike(s):
GSXR 600 Race Bike




Member Garage


fresh off of some personal bests for me this weekend and it being fresh it's good info for me too! my line thru 1 is more like alonzo's. studying this I can see how it's gas or brake. I tend to coast alot more need to stay on the gas and brake more. Good info Curt! Nice seeing you out there mang! I would have liked to get some info too! maybe next year huh
__________________
tj
www.TRACK-JUNKIE.com
THE DEAN OF LEAN is offline   Reply With Quote
Old 10-19-2009, 12:37 PM   #10
ileono918
On hiatus
 
Join Date: Aug 2008
Feedback Rating: (4)
Posts: 6,047

Experience: 1-3 months
Trackdays: 1











Wow, just wow. I like all the tools you have Curt, I would be happy to see the changes if doing consistently for a rider throughout a year, specially in the rookie season. Maybe in 2010 you can support someone.
ileono918 is offline   Reply With Quote
Old 10-19-2009, 12:44 PM   #11
cdill35
717
 
cdill35's Avatar
 
Join Date: Apr 2008
Location: Cypress
Feedback Rating: (5)
Posts: 9,586

Experience: 10+ years
Trackdays: 10+

Bike(s):
2014 Phoenix 921 Pro XP w/ Merc 250 ProXS
11 Yam Zuma 125
Specialized Stumpy







I have just about convinced myself that I dont have the , confidence or whatever, to carry the lean angle that some of these guys do, Alonzo in particular. That lack of lean angle hurts my corner speed and that, in turn, hurts my drive.

Having said that, a hypothetical of 51:6 and a real lap, in my first, of :51:5 give me some encouragement.

Not too terribly shabby for a 6"5' 258lb fat guy. Maybe I need a litre bike.

Again, thanks for the info Curt. I know that it takes alot of time to sort it all out and post it.

And I'll volunteer to be that support rider next year.
cdill35 is offline   Reply With Quote
Old 10-19-2009, 12:47 PM   #12
SW@T
SWAGGA OF A CRIPPLE!!
 
SW@T's Avatar
 
Join Date: Nov 2008
Location: SW side of Houston
Feedback Rating: (0)
Posts: 3,166

Experience: 3 years
Trackdays: 3

Bike(s):
Track= 07 600RR
Street= 09 R6 white/red



Member Garage





awesome thread...very very badass curt
__________________
Quote:
Originally Posted by JP171 View Post
no she doesn't wear the pants, she does however own the !
SW@T is offline   Reply With Quote
Old 10-19-2009, 01:13 PM   #13
THE DEAN OF LEAN
CMRA/WERA #171 AMA#771
 
THE DEAN OF LEAN's Avatar
 
Join Date: Mar 2008
Location: Houston
Feedback Rating: (2)
Posts: 2,996

Experience: 3 years
Trackdays: 10+

Bike(s):
GSXR 600 Race Bike




Member Garage


me and you both Cdill! HAHA one fast one slow guy, see how we both progress throughout the year!
__________________
tj
www.TRACK-JUNKIE.com
THE DEAN OF LEAN is offline   Reply With Quote
Old 10-19-2009, 04:36 PM   #14
maxgs
Guest
 
Posts: n/a







Member Garage





..
  Reply With Quote
Old 12-01-2009, 10:17 PM   #15
timboslice
public punchin bag
 
timboslice's Avatar
 
Join Date: Apr 2009
Location: paridise
Feedback Rating: (0)
Posts: 160

Experience: 1-3 months
Trackdays: 1

Bike(s):
A quick one









could those real drastic spikes on the lateral acceleration chart be from mishaps? little shakes and shimmy's?
timboslice is offline   Reply With Quote
Old 12-01-2009, 11:47 PM   #16
maxgs
Guest
 
Posts: n/a







Member Garage





It's from the bike working in the turns.
  Reply With Quote
Old 12-02-2009, 12:32 AM   #17
S.D.W.
...Ready
 
S.D.W.'s Avatar
 
Join Date: Jan 2009
Location: Galleria
Feedback Rating: (5)
Posts: 3,147

Experience: 1-3 months

Bike(s):
2011 ZX10 Racebike
2010 Crf450r
2009 zx6 race bike
2009 ttr110






The data graphs and charts are unreal Curt, I love it!
__________________
HouseOfPaint
S.D.W. is offline   Reply With Quote
Old 12-02-2009, 01:29 AM   #18
yakitori
Banned
 
Join Date: Nov 2009
Feedback Rating: (0)
Posts: 162












User is banned

.
yakitori is offline   Reply With Quote
Old 12-03-2009, 05:25 PM   #19
Ty Howard
Member
 
Join Date: Nov 2009
Feedback Rating: (0)
Posts: 12












My lap chart probably won't look to different from their laps. The lines would look very similar. You would need to have mph in the turns to see a difference. Braking and throttle lines would be very close but the amount of each would be the difference. Brandts times are slower than Alonzo's because of the extra 100lbs he carries. Brandt invest in a 07 or 08 GSXR 1000.
Ty Howard is offline   Reply With Quote
Old 12-03-2009, 05:33 PM   #20
0oAndyo0
Trying togo fast again!
 
0oAndyo0's Avatar
 
Join Date: Sep 2005
Location: @ the track
Feedback Rating: (1)
Posts: 1,093

Experience: 4-8 months
Trackdays: 7

Bike(s):
2009 R6 Race bike forsale!
2006 GSXR Race bike SOLD!!!
2007 GSXR 750 SOLD!!!
2001 GSXR 600 SOLD!!!
2007 R1 SOLD!!!






clap clap clap
__________________
CCS - 483
CMRA - 483
0oAndyo0 is offline   Reply With Quote
Reply


Thread Tools


All times are GMT -5. The time now is 03:39 AM.


MotoHouston.com is not responsible for the content posted by users.
Privacy Policy