Humidity
 

Any ideas if High humidty will affect performance and Air/Fuel mixture?
humid as hell this morning truck seemed a little sluggish

Re: Humidity
 

Yes it will. You are adding more water to the fuel mixture and water doesn't burn to well:)

Re: Humidity
 

The old J57 turbines on the B52 aircraft loved humidity and water. Seemed to make the compression go from 10,000lbs of thrust to around 12,500lbs (per engine) when they injected water directly into the inlets of those engines during take-off. Unfortunately the aircraft only held 1200 gallons and would use that entire 1200 in the first few moments of take-off.

Too bad internal compression engines don't like hot humid weather!

Re: Humidity
 

Look at it like this. For more HP, many tractor pullers run a water/alchohol injection system. That is mostly on a diesel vehicle, but in the late 70s and early 80s there were water injection system for the enimic cars that were out there. The expansion of a water droplet into a steam cloud is a lot of BTUs of power.

Re: Humidity
 

Plus more water, less air.

Re: Humidity
 

It will make more power but you have to tune for it.
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Re: Humidity
 

well i think the idea of water and alcohol injection is to lower intake tempertures and to increase combustion , as far as everyday weather humidity is what i am talking about, just seemed like the chevy did not run as good the other morning compaired to most morning on the way to work, like something was holding it back or there was a drag or something

Re: Humidity
 

Too much alcohol in today's gas,the truck was drunk.:lol:

Re: Humidity
 

I always think of it this way. Humid air is thicker and your truck can't swallow as much as thin air. Your truck will run richer with the thicker air.

Re: Humidity
 

Any naturally aspirated engine that uses air in its combustion process will not make more power with less air density.

Air density decreases with increasing altitude, as does air pressure. It also changes with variation in temperature or humidity.

Re: Humidity
 

It's humid here today. The truck ran ok, but my A/C iced up. :dohh: