hp diff. of std dyno vs. sae

[04CobraVert]

just wondering what kind of diff there is between getting a dyno reading in sae vs. std i know the std rating is higher but how much higher

like if my hp in sae is 405 what would it be in std

 

[Black2003Cobra]

The current version of DynoJet Runviewer 7.0.1 gives STD as being just a bit over 2% more than SAE. But the problem w/ STD is that there seems to be too many different sets of reference conditions out there. Therefore, I prefer to use SAE.

http://www.svtperformance.com/forums/showthread.php?s=&threadid=73288

 

[zinc03svt]

SAE is simply corrected horsepower numbers for conditions and air temperature.

 

[dynobobstieg]

SAE calculates HP at 70 degree air temp
STD calculates HP at 50 degree air temp
You can print a graph in Actual air temp (dyno room)
The reason for using SAE and STD is for testing changes in different weather conditions such as winter to summer.

 

[Black2003Cobra]

According to SAE J1349, SAE conditions are Tf = 77 F and Pd = 29.235 in Hg at sea level, and RH = 0%.