For you big carburetor guys, or folks looking to buy new and haven't seen the many size calculators on the web, ponder this.
Yes, it's old. BUT, math is math, and nothing's really changed, nor will it. "Some" newer calculators have another parameter in the mix, "engine efficiency" (in %). Interestingly, if you put in a realistic...efficiency value, the carburetor size normally goes "down" for this list..!
Also read the info below the chart. It describes to go "up" in size if your cfm number is between a carburetor size that's available vs. one that is not made by anyone.
E.G. - 485cfm recommended... Buy a 500cfm carburetor.
https://offenhauser.co/wp-content/up...talog-1987.pdf
See listed page 13.
Mike
Yes, it's old. BUT, math is math, and nothing's really changed, nor will it. "Some" newer calculators have another parameter in the mix, "engine efficiency" (in %). Interestingly, if you put in a realistic...efficiency value, the carburetor size normally goes "down" for this list..!
Also read the info below the chart. It describes to go "up" in size if your cfm number is between a carburetor size that's available vs. one that is not made by anyone.
E.G. - 485cfm recommended... Buy a 500cfm carburetor.
https://offenhauser.co/wp-content/up...talog-1987.pdf
See listed page 13.
Mike
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