Quote:
Originally Posted by 4zpeed
So, assuming they used the same method in (Advertised) cfm, and using your formula for each, wouldn't the 850 venturis have at least the same or larger (Actual) difference in cfm than the 750 venturis?
THEY DO HAVE MORE CFM, A LOT MORE CFM
I'm asking because you stated "The venturis on the end carbs are 1-9/16" or 1.5625" for the venturi size (Same as a 850 cfm Holley carb venturi) but at the higher test pressure would flow more cfm."
251 cfm (the 1.414 conversion) vs 373 cfm (the actual calculations) = 24 cfm difference.
This situation with advertised cfm for carbs is much like the advertised duration of cams, fubar. 
Much Thanks,
Frank |
373 CFM - 251 CFM = 122 CFM DIFFERENCE, NOT 24 CFM DIFFERENCE. 24????????
Tom V.
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