Corrected RWHP?

[RaceDeck]

Is there a formula to figure out what your "true" rwhp at higher altitudes? When I bought my GTS, it had 428 HP at sea~level ( according to the sheet I was provided)...How much did I loose at 4500 feet above? I am adding mods and I would like to see if I am heading in the right direction......Thanks

 

[RaceDeck]

?

 

[MES]

Normally when you dyno they give you a sheet that shows actual (uncorrected) and SAE corrected. If you didn't get both I don't think there is any way to tell. Most people that want to check the improvement with mods will go by the corrected HP.

 

[WCKDVPR]

Jorgen,

4500 feet of altitude results in a loss of 16% horsepower from sea level. This would give you 360 actual hp at altitude if the original 428 hp was measured at sea level. This does not take into account any variances in humidity and temperature between dyno runs.

The best way to avoid this on dyno runs is always request to have the data provided in SAE Corrected numbers. This takes into account all these parameters and sets them to a standard. Then you can compare numbers even up to see the effect of mods, etc regardless of where and when you do the dyno run.

Best regards,