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Custom profile

Posted: Wed Jul 22, 2009 1:10 pm
by bjrmd
Hi
Is there any way to make a more custom profile based on an old one. I have a powertap and by trial and error have found a good wind offset,cda, crr-friction to use. I can adjust the friction which then changes the crr--that seems ok. But if I adjust the cda, the wind offset changes--any way around this. And yes--I have done many calibrations--no single one gets it just right.

Re: Custom profile

Posted: Wed Jul 22, 2009 1:25 pm
by lorduintah
Aero, CdA and Wind Scaling all play together. You can change CdA, then adjust Aero to get back the wind scaling or a combination of the three. Fric, Crr and Tilt have the same game plan. You just fiddle to what you want.

Tom

Re: Custom profile

Posted: Wed Jul 22, 2009 3:22 pm
by racerfern
bjrmd wrote:Hi
But if I adjust the cda, the wind offset changes--any way around this.
Rather than adjust the CdA, adjust the aero number to give you the CdA you want. That way the wind scaling isn't affected.

Re: Custom profile

Posted: Wed Jul 22, 2009 4:09 pm
by lorduintah
I never paid enough attention to how the three were tied together in the software, just toggled each until I go what I was looking for. Thanks Fernando.

Tom

Re: Custom profile

Posted: Thu Jul 23, 2009 7:16 pm
by Russ
CdA times Wind = Aero

Enter your wind
multiply CdA time wind
Enter the answer into Aero
your CdA should then appear

Russ

Re: Custom profile

Posted: Fri Jul 24, 2009 8:28 am
by bjrmd
Thank you