High humidity and engine rpms

[TexasSkeeter]

I know that an engine loses some horsepower when it's hot and humid, but how much is "normal "? 200-400 rpms?

[2500]

Not my L6 VERADO, that’s one awesome engine

[E-rude_Dude]

Yes

[TexasSkeeter]

Ok, thanks guys, I just wanted to be sure, I was turning 6400 but now down to 6200

[bayouXpress]

absolutely.

[tcesni]

If you look online, you can find conversion charts for horsepower in automobiles. When you see 0-60 and 1/4 mile times in auto mags such as Car and Driver the data has been converted to a standard temperature and humidity.

[Bassman Ia.]

In car engines ( race engines) high humidity can take 2% of the horsepower

[printman71]

Hot and humid air is less dense. Less dense changes the mixture with the gasoline resulting in lower power.

[brnzbaklvr]

I used to race some long distance motorcycle races out west...The difference in power between day time and night time made a huge difference .With cooler temps and lower humidity it felt like somebody rebuilt the bike at sunset..
I always thought FI would clean some of that up....Maybe not..??

[stratofast]

Yup. One of the reasons to have different props for different times of the year to get the most out of your rig.

[Bassmeister]

Yup. One of the reasons to have different props for different times of the year to get the most out of your rig.

This !! I run a 26 Bravo in the summer and a 28 Bravo in the winter....

[PolarKraft195]

200-300 rpms max

[jpt7779]

http://www.bbcboards.net/showthread.php?t=1127731

see post 13 for explanation and HP calculator that allows you to change weather conditions.

[dean c]

http://www.bbcboards.net/showthread.php?t=1127731

see post 13 for explanation and HP calculator that allows you to change weather conditions.

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