I have chosen to look at stage times(average speeds) at North Amertican Rallies for the past 10 or so years. I have found good datasets for stage times which I can convert to average speeds easily.

I am going to generate a historical plot of average speeds for individual cars as well as groups/classes. I hope to use the trends in this data for a "control group" (groups that have not had restrictors required, or groups that have had constant restrictor size), and compare the trends of "control groups" to the trends of groups that have had restritors placed on them.

I have talked to a few engine builders to try to get data for the effects of a the restrictors on engine output, and I have got good response from a few. (however their data is for NA motors) I would like to find a few data sets either from engine builders dyno tests or competitors dyno results that will show the real world effects of restrictors on engine output.

Does anybody have or know where to get data on the effects of a restrictor on engine output? (I need numbers from actual tests or computer models not just word of mouth/assumptions)

I don't know if anyone has performed a similar study, but I would love to compare notes with someone who has.....If any one has data that may help me out please post or email me:

J.vimpty (at) verizon (dot) net

One big assumption of my modelling is that stage speeds are a function of engine output (engine output is at least a significant or limiting part of the function)

Thanks

Jeremy Wimpey

Trying to keep research paper writing somewhat exciting/interesting