RegamircS042

http://haveblue.org/dyno/5jun04dyno.jpg

I found this recharge chart while surfing another forum (spyderzone) and I thought it would come in handy. Check it out.

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paintbug

interesting to say the least.

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Javaman

Pretty to look at but not too useful. They forgot one of the fundimental rules of scientific testing..... Unchanging variables. Did he fill the tank up to the same pressure after every regulator? As the 4500psi or whatever pressure drops in the tank it is going to cause a longer recharge rate. Less pressure from the tank means less push and slower airflow. I certainly appreciate the effort though, I just wish I could believe the results.

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HP_lovecraft

This is just 1 of MANY reg-tests done for the:
Tinkers Guild

They all had the exact same questions regarding the scientific process. (ie repeatability, accuracy, testing conditions).
He also does work for the company that makes the "mystery reg", so they were also concerned he was biased.

-nic

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Have Blue

Just stumbled across this thread after a google search to see where the heck I had stashed the reg test files...

I do not work for and have never worked for AKA (though I am a dealer) - I'm simply on good terms with the Alexanders and they had asked me if I could test out the prototype regulator. Do I have personal biases? Certainly. But I'm an engineer and do not let biases cloud my testing methodology - I controlled the variables to the best of my abilities and within the confines of a very limited budget.

All of my testing parameters and methods are listed in the jpeg (5jun04dyno.jpg) - I did this so that other people can replicate the experiment and confirm or refute the results. I've seen loads of people complain that I was biased, that my testing was flawed, that a butterfly flapping its wings in Beijing caused their favorite reg to not do very well, etc. (okay, maybe not the butterfly one, but you get the point). The bottom line is, I got so much crap as a result of the data that I probably won't release any further test results - people are quick to complain about the results, but I have yet to see anyone else step forward and do their own testing.

(Javaman, your observations are good, but I did control for your concern - not only did I give each reg a good 30 seconds of 'idle' time before firing to ensure that the output pressure from the Scion had returned to steady-state, but I also attached a volume chamber directly to the input of the tested reg to minimize the effects of dynamic input pressure on the tested regs)