S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

How To Calculate Your FATS Time 101

Thread Tools
 
Search this Thread
 
Old 08-20-2004, 06:31 PM
  #21  
AudiWorld Super User
 
NoahD's Avatar
 
Join Date: Jun 2001
Posts: 2,542
Likes: 0
Received 1 Like on 1 Post
Default Here ya go!

If finding the closest values to 4200 and 6500 is too hard, I could let ya paste in a list of values, but... :-)<ul><li><a href="http://www.weaselworks.net/cgi-bin/fats.cgi">Noah's super-nifty FATS calculator</a></li></ul>
Old 08-20-2004, 06:33 PM
  #22  
AudiWorld Expert
 
mpwolf's Avatar
 
Join Date: Oct 2001
Posts: 30,401
Likes: 0
Received 0 Likes on 0 Posts
Default It's possible, and I'd do it (I've got free time), but untill people come to a consensus on what

a proper FATS run is, I'm reluctant to put the time in. I'm partial to the 2500-7000 RPM run, just because it grabs the most data.
Old 08-20-2004, 06:34 PM
  #23  
AudiWorld Super User
 
NoahD's Avatar
 
Join Date: Jun 2001
Posts: 2,542
Likes: 0
Received 1 Like on 1 Post
Default Not quite

It really only assumes that a linear approximation is good enough for what should be a VERY SMALL delta between 4200 and the closest value to it, and between 6500 and the closest value to it. It does NOT assume linearity between 4200 and 6500.

but yes, taking the 2 points on either side of each value would be better, but too much to ask the user for. But if I change my cgi to take a whole list of values pasted in from excel or what have you, that'd be an easy calculation.
Old 08-20-2004, 06:36 PM
  #24  
AudiWorld Expert
 
mpwolf's Avatar
 
Join Date: Oct 2001
Posts: 30,401
Likes: 0
Received 0 Likes on 0 Posts
Default We actually went over this a while back...

<ul><li><a href="https://forums.audiworld.com/s4/msgs/1657015.phtml">https://forums.audiworld.com/s4/msgs/1657015.phtml</a></li></ul>
Old 08-20-2004, 06:38 PM
  #25  
AudiWorld Expert
 
mpwolf's Avatar
 
Join Date: Oct 2001
Posts: 30,401
Likes: 0
Received 0 Likes on 0 Posts
Default It's not.

<img src="http://2k2s4.portfolioland.com/audiworld/forum/images/summer_run_42-65.gif">
Old 08-20-2004, 06:39 PM
  #26  
Elder Member
Thread Starter
 
No More B5 S4's Avatar
 
Join Date: Aug 2002
Posts: 30,754
Likes: 0
Received 0 Likes on 0 Posts
Default

More work and some times it's 6680 or 6240, then what? Too much work, at least for me. :-P
Old 08-20-2004, 06:40 PM
  #27  
AudiWorld Expert
 
mpwolf's Avatar
 
Join Date: Oct 2001
Posts: 30,401
Likes: 0
Received 0 Likes on 0 Posts
Default

Then, fit a curve and calculate the value at 4200 and 6500. :-P
Old 08-20-2004, 06:44 PM
  #28  
Elder Member
Thread Starter
 
No More B5 S4's Avatar
 
Join Date: Aug 2002
Posts: 30,754
Likes: 0
Received 0 Likes on 0 Posts
Default

You do it.
Old 08-20-2004, 06:45 PM
  #29  
Elder Member
Thread Starter
 
No More B5 S4's Avatar
 
Join Date: Aug 2002
Posts: 30,754
Likes: 0
Received 0 Likes on 0 Posts
Default

LOL! From the guy who gets a faster 0 to 91mph time than he does a 0 to 90mph with his "math". :-P
Old 08-20-2004, 06:46 PM
  #30  
Elder Member
Thread Starter
 
No More B5 S4's Avatar
 
Join Date: Aug 2002
Posts: 30,754
Likes: 0
Received 0 Likes on 0 Posts
Default

I'll wait for you to get a clean run with no passenger and no spare. :-)


Quick Reply: How To Calculate Your FATS Time 101



All times are GMT -8. The time now is 08:49 AM.