Subject	Re: Its not that the curves follow the same general pathway,
Posted by	kuah@splparts.com on August 31, 2006 at 9:10 AM
	This message has been viewed 39 times.
In Reply To	Its not that the curves follow the same general pathway, posted by CaliguyPurdue on August 31, 2006 at 03:48 AM
Message	Addressing my original post again, the 27 spikes could simply be 27 data points that you entered at those specific rpms to form your data points. Taking the first derivative of discrete data points will create delta like spikes at those rpm points. They could coincide because you entered the data at the same rpm points for both charts. I am pretty sure it is an artifact of the data processing and not of actual engine operation. If they were real then the spikes will imply step like changes in hp at those rpm points, which I have never seen in a real dyno chart.
Follow Ups	Attn: data junkies- Dyno graph derivatives! :) - CaliguyPurdue 18:44:20 08/30/06 Sweet =). (n/m) - Kenny 19:42:37 08/30/06 Nice work! That would definitely make comparisons much - Dustin 20:32:25 08/30/06 Exactly! - CaliguyPurdue 21:09:57 08/30/06 I see where you are going in spirit .. I don't think that is - The Devils Z 22:20:27 08/30/06 According to the filepathways on Ash's post, - CaliguyPurdue 03:54:52 08/31/06 Re: Attn: data junkies- Dyno graph derivatives! :) - kuah@splparts.com 22:24:45 08/30/06 Yes - it explaines the regularity of the spikes but not the - The Devils Z 22:37:14 08/30/06 Re: Yes - it explaines the regularity of the spikes but not the - kuah@splparts.com 00:50:27 08/31/06 Its not that the curves follow the same general pathway, - CaliguyPurdue 03:48:30 08/31/06 Re: Its not that the curves follow the same general pathway, - kuah@splparts.com 09:10:15 08/31/06 2nd that. Done that in lots of control system analysis! (n/m) - MixManMash 11:26:29 08/31/06 Interesting point . So you theroize that taking the - The Devils Z 11:30:36 08/31/06 Re: Interesting point . So you theroize that taking the - kuah@splparts.com 13:37:03 08/31/06 yes we are saying the same thing .. I just explained it - The Devils Z 14:29:34 08/31/06 But a spike has an up and a down... - CaliguyPurdue 15:08:41 08/31/06 beautiful... really interesting (n/m) - mousersix 23:00:59 08/30/06 I remember that thread, vividly. (n/m) - Zluster(Abudan) 23:10:35 08/30/06 Me too. - red TT (STL) 03:00:13 08/31/06 relating to how you handle the data - The-FActor 23:57:42 08/30/06 I prepared this post back in May and forgot about it... - CaliguyPurdue 04:00:43 08/31/06 I agree that we need to look at dyno curve stressing - The Devils Z 08:42:02 08/31/06 Re: Attn: data junkies- Dyno graph derivatives! :) - Russell@Z1 18:54:49 08/31/06
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