Just a curious ? about the correction values for a dynojet what are the reference climate conditons that it corrects for. I ask because I did some dyno Tuning to my car yesterday and got to 181hp std. Now conditions at the time where typical florida mid 80's about 83 to 85 at the dyno and humid felt like 60% just a guess without too much air circulation thru the shop just a good blower at the radiator. Curious if my numbers would liking be higher with correction. Came in at 178 ended at 181 best. Bear in mind my setup (see sig) I had over time done a good bit of B-dyno (lots of butt dyno)tuning and had a good running setup going in was curious as how good my gut(butt) feelings were any good. By the way I did over 20+ pulls tuning myself. And feel have a few more hp left in fuel tuning being as the wideband was down due to a 700+hp mustang losing a tire on the dyno and tearing **** up. By the way I have to give big props to Twilight performance the guys there are super cool and he helped me out alot. Highly recomend them in the miami area. Also they have a 4whl drive dynojet and are the bomb at tuning the soobies and evo's. They had a new EVO MR doing some tuning still ruinng the stock turbo and got it up to 368 in this florida heat remember std hp so bet it's better dam that must be a fun ride.....

 

SAE dynojet correction factors will tell you how much WHP your car would produce under standardized atmospheric conditions. I am not sure of the standard conditions that the dynoject uses to calculate the correction factor.

If you dyno in hot and humid conditions: the SAE correction factor will be greater than 1 and your actual whp numbers will be lower than the SAE corrected.

If you dyno in cooler and not humid conditions: the SAE correction factor will be less than 1 and your actual whp numbers will be higher than the SAE corrected.

 

Here is a great site that you can use to find the dynojet correction factor:

http://wahiduddin.net/calc/calc_cf.htm

"For these calculations, the standard reference conditions are: Air temp 77 deg F (25 deg C), 29.235 Inches- Hg (990 mb) altitude-corrected barometric pressure, 0 ft ( 0 m) altitude, 0% relative humidity"

 

Thank you very much that is what i was looking for I figured that sae correct I should have a few more not much but a little 2-3 at most i expect gonna try to do the math. Thanks for the info....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integratom &raquo;</TD></TR><TR><TD CLASS="quote">Thank you very much that is what i was looking for I figured that sae correct I should have a few more not much but a little 2-3 at most i expect gonna try to do the math. Thanks for the info.... </TD></TR></TABLE>

Most dynos already apply the correction factor, in my experience. You might want to check before you give yourself another 5 HP

 

Trust me i know but my numbers are uncorrected std hp 181.4hp 121.7tq. And lacking fuel tuning due to the damage caused to the dyno previously.