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Originally Posted by RockyMtnTitan
Yeah, SAE is the only way to go, although I posted both just for those that wanted to see them. It's kinda like any scientific experiment where you must have a "control" or a constant to compare with to keep the results from becoming skewed. The SAE is that control because it is un-wavering.
What throws people off, I think, is the whole "actual" vs "corrected" thing. They want to see "actual" because they think it is more accurate, as opposed to "corrected" because.....well hey, it's been corrected! Know what I mean..... it's deceiving. Once you understand that the SAE standard is used as the "control", if you will, then you understand that just the opposite is true. We obviously can't control the weather and barometer, thus the SAE correction factor. Of course, this factor is only as good as the measuring equipments accuracy, but hek.....nothings perfect, right?
Thanks for all your posts on this subject........there's a lot of good stuff goin on with this thread.
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Thank you just the same. Couldn't have put it any better me self
I think as it's been suggested to post it all. It's nice to have all the information to disseminate and digest it any way you like. To come to your own conclusions.
Differences-
"Uncorrected"- what HP and Torque made at that time of the dyno with those conditions that were present - weather at that time and altitude, atmospheric pressure.
Environmental conditions such as temperature and atmospheric pressure have a significant effect on the horsepower that an internal combustion engine produces.
Also we need to claify that their IS a difference with "standard corrected" or "corrected" as most refer it as and "SAE":
"SAE" : This standard makes it seem that the test was conducted at 77oF, 29.23 in. of Hg pressure, and a humidity of zero. Note "SAE" is only for naturally aspirated internal combustion engines. A turbo or supercharged engine wouldn't be accurate with this standard...as of now that's not a concern for us though I wish it was
"Standard Corrected" : is popular with aftermarket manufacturers because it uses a higher pressure and a lower temperature (denser air), thus inflating the horsepower numbers.
In the interest of consistency it has been suggested that everyone use "SAE "results.
