Vapor Pressure

63corvette · 11-27-2016, 01:08 PM

Not sure I can explain it however, I believe it is best to watch it when the humidity is high.
I my case it affects the car when it is high and there is a breakover point at which it really affects the et.
It is a expression of humidity which is also affected by the atmospheric pressure. They are tied together when it comes to the HP the engine can make.
Just watching humidity is not enough as the adjusted altitude is factored in. It is really something to watch when racing at altitude tracks. It can fool you.
Just My 2 Cents
Rick Cates

11-27-2016, 01:08 PM	#3
63corvette Senior Member Join Date: Mar 2007 Location: Canyon, Tx Posts: 552 Likes: 128 Liked 359 Times in 103 Posts	Re: Vapor Pressure Not sure I can explain it however, I believe it is best to watch it when the humidity is high. I my case it affects the car when it is high and there is a breakover point at which it really affects the et. It is a expression of humidity which is also affected by the atmospheric pressure. They are tied together when it comes to the HP the engine can make. Just watching humidity is not enough as the adjusted altitude is factored in. It is really something to watch when racing at altitude tracks. It can fool you. Just My 2 Cents Rick Cates