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SuperCompDiv3 · 03-31-2012, 02:37 PM

Smaller engines are much more sensitive especially when barometer is added into the equation.

The only correct way to figure ratios is like Don Higgins said:
Same day, same lane. 60 foot must be within .01. That is the only way to verify ratios of air quality to ET differences.

I see many stockers that are 50 - 80 feet per .01 on the Crew Chief Software. While guys with 632 inch motors can be upwards of 400 feet per .01. The reason I have been told is the carburetor size. Smaller carbs bottle up the efficiency and are more sensitive.

03-31-2012, 02:37 PM	#7
SuperCompDiv3 Junior Member Join Date: Sep 2010 Posts: 29 Likes: 0 Liked 0 Times in 0 Posts	Re: density altitude per hundredth Smaller engines are much more sensitive especially when barometer is added into the equation. The only correct way to figure ratios is like Don Higgins said: Same day, same lane. 60 foot must be within .01. That is the only way to verify ratios of air quality to ET differences. I see many stockers that are 50 - 80 feet per .01 on the Crew Chief Software. While guys with 632 inch motors can be upwards of 400 feet per .01. The reason I have been told is the carburetor size. Smaller carbs bottle up the efficiency and are more sensitive. Last edited by SuperCompDiv3; 03-31-2012 at 02:39 PM.