A/F ratio (Colorado)
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Staging Lane
Joined: Sep 2007
Posts: 52
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From: Denver Colorado
A/F ratio (Colorado) Just wondering if anyone lives in CO knows where should my A/F ration be?This elevation is killing me! Sometimes too rich or lean! DYNOTUNE I NEED THAT SWITCH BABY! LOL
Colorados Elevation:
Quick Fact: Denver's known as the Mile High City because, well, it's a mile above sea level - that's 5,280 feet. At a mile high, water boils at 202 degrees instead of 212 degrees, which means it takes four minutes instead of three to soft boil an egg.
At a mile high, baseballs, golf *****, and footballs travel 9 percent farther. That means that if you hit a home run 400 feet at Yankee Stadium (which is at sea level), it would go 436 feet at Coors Field, just because of the elevation difference. But, at higher elevations there is less oxygen, so if you're not used to living in Colorado, you might be short of breath for the first couple of days you're here.
Why the differences between sea level and a mile up? Because there's less atmospheric pressure - the air is less dense.
Ha we also gain almost a second up here to on our track times!
Colorados Elevation:
Quick Fact: Denver's known as the Mile High City because, well, it's a mile above sea level - that's 5,280 feet. At a mile high, water boils at 202 degrees instead of 212 degrees, which means it takes four minutes instead of three to soft boil an egg.
At a mile high, baseballs, golf *****, and footballs travel 9 percent farther. That means that if you hit a home run 400 feet at Yankee Stadium (which is at sea level), it would go 436 feet at Coors Field, just because of the elevation difference. But, at higher elevations there is less oxygen, so if you're not used to living in Colorado, you might be short of breath for the first couple of days you're here.
Why the differences between sea level and a mile up? Because there's less atmospheric pressure - the air is less dense.
Ha we also gain almost a second up here to on our track times!
The air is less dense but, there is just as much O2 in it. The lower pressure is what reduces the absorption of oxygen. I don't know for sure but I would think that the AFR would be the same at 5280 as it is at sea level, since it is a ratio. Call a local tuner, they should know...
Teching In
Joined: Nov 2005
Posts: 4
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Same AFR's just takes a different tune to get to it.... Also remember it's 91 octane here for pump. Physics say because of the altitude less octane is needed blah blah blah but the 91 is shitty and like 10% ethanol unless u live in the sticks like I do!
Teching In
Joined: Nov 2007
Posts: 16
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From: Aurora CO
Ya buddy its actualy not the same. because the air is thinner your car takes the same square feet of air in but sence the air is thin there the less mass is that amount thus less oxygen but its harder to tune because this causes colder o2 temps so if you have a gauge it will actualy read that you are running lean but dont let it worry you the only way to be sure is wideband and uless you are realy built its not necessary
12 Second Truck Club
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Joined: Jun 2006
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From: colorado above 6000 ft.
Just wondering if anyone lives in CO knows where should my A/F ration be?This elevation is killing me! Sometimes too rich or lean! DYNOTUNE I NEED THAT SWITCH BABY! LOL
Colorados Elevation:
Quick Fact: Denver's known as the Mile High City because, well, it's a mile above sea level - that's 5,280 feet. At a mile high, water boils at 202 degrees instead of 212 degrees, which means it takes four minutes instead of three to soft boil an egg.
At a mile high, baseballs, golf *****, and footballs travel 9 percent farther. That means that if you hit a home run 400 feet at Yankee Stadium (which is at sea level), it would go 436 feet at Coors Field, just because of the elevation difference. But, at higher elevations there is less oxygen, so if you're not used to living in Colorado, you might be short of breath for the first couple of days you're here.
Why the differences between sea level and a mile up? Because there's less atmospheric pressure - the air is less dense.
Ha we also gain almost a second up here to on our track times!
Colorados Elevation:
Quick Fact: Denver's known as the Mile High City because, well, it's a mile above sea level - that's 5,280 feet. At a mile high, water boils at 202 degrees instead of 212 degrees, which means it takes four minutes instead of three to soft boil an egg.
At a mile high, baseballs, golf *****, and footballs travel 9 percent farther. That means that if you hit a home run 400 feet at Yankee Stadium (which is at sea level), it would go 436 feet at Coors Field, just because of the elevation difference. But, at higher elevations there is less oxygen, so if you're not used to living in Colorado, you might be short of breath for the first couple of days you're here.
Why the differences between sea level and a mile up? Because there's less atmospheric pressure - the air is less dense.
Ha we also gain almost a second up here to on our track times!
Gain you mean as in 1 sec. slower times. Get a wide band to tune your car. Mine is running on the rich side most the time, 10.9- low 11's. Oh well I'll get it straitened out sooner then later.