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AFB Question #906917
01/16/11 11:29 PM
01/16/11 11:29 PM
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tennessee
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I have a old 3860SA carb.Can anyone tell me what is the cfm and what size motor it came on?
Thanks, PB

Re: AFB Question [Re: pushbutton] #906918
01/16/11 11:41 PM
01/16/11 11:41 PM
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Blair County,PA
62maxwgn Offline
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Blair County,PA
65 426 street wedge,not sure on the cfm's without looking.

Re: AFB Question [Re: 62maxwgn] #906919
01/17/11 11:30 AM
01/17/11 11:30 AM
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Quote:

65 426 street wedge,not sure on the cfm's without looking.



Anybody know a source for AFB cfm's?

Re: AFB Question [Re: pushbutton] #906920
01/17/11 03:58 PM
01/17/11 03:58 PM
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Rio Linda, CA
John_Kunkel Offline
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Regardless of the numbers you'll hear, the fact is Carter never published cfm ratings for OEM carbs. I'd guess the AFB's used as singles back then were well under 600 cfm.


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Re: AFB Question [Re: John_Kunkel] #906921
01/17/11 09:01 PM
01/17/11 09:01 PM
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nielsville, minn.
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quickd100 Offline
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nielsville, minn.
Here's the venturi dia. and CFM ratings for AFB's.

primary venturi,1-1/8 secondary venturi,1-1/4, 400cfm

pri. venturi, 1-3/16 sec. venturi 1-1/4, 500cfm

pri. venturi 1-1/4 sec. venturi 1-9/16 575cfm

pri. venturi 1-3/16 sec. venturi 1-9/16 625cfm

pri. venturi 1-7/16 sec. venturi 1-9/16 750cfm

Hope this helps. Dave

Re: AFB Question [Re: quickd100] #906922
01/18/11 01:57 AM
01/18/11 01:57 AM
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Quote:

Here's the venturi dia. and CFM ratings for AFB's.

primary venturi,1-1/8 secondary venturi,1-1/4, 400cfm

pri. venturi, 1-3/16 sec. venturi 1-1/4, 500cfm

pri. venturi 1-1/4 sec. venturi 1-9/16 575cfm

pri. venturi 1-3/16 sec. venturi 1-9/16 625cfm

pri. venturi 1-7/16 sec. venturi 1-9/16 750cfm

Hope this helps. Dave



Thanks will measure







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