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RE: Let's make a sixth...
By Bob - 11/08/2001 9:52:53 PM; IP 65.80.203.36
How much different flow rates? Would you give some examples? Please list specific carburetors and their venturis, etc.

I believe the original carburetor from my '66 7 Litre Convertible, Tag No. C6AF-E, flows 430 CFM. It has a Primary Venturi of 1.08 inches, a Primary Throttle Bore of 1.437 inches, a Secondary Venturi of 1.18 inches and a Secondary Throttle Bore of 1.437 inches. This is smaller than your 352 carburetor – which is probably Tag number C6AF-C, with a Primary Venturi of 1.12 inches, a Primary Throttle Bore of 1.562 inches, a Secondary Venturi of 1.18 inches and a Secondary Throttle Bore of 1.562 inches.

This small difference of .040 in the primary venturis coupled with the increase by 0.125 inches in the throttle bore sizes gives your carburetor a 470 CFM rating or so.

I know you disagree with this so again please provide your references. Mine are:

In the 1968 Ford Shop Manual, Page 10-87, it shows the 4100 with tag number C8AF-AE with throttle bores of 1.562 Primary and 1.562 Secondary, a Primary Venturi of 1.125 and a Secondary Venturi of 1.187 with "Maximum Air Flow (cfm) 467".

In the 1969 Ford Shop Manual, Page 10-11-04, it shows the 4100 with tag number C8AF-AE with throttle bores of 1.562 Primary and 1.562 Secondary, a Primary Venturi of 1.125 and a Secondary Venturi of 1.187 with "Maximum Air Flow (cfm) 472". Don't know why or how it gained 5 CFM when it changed model years.

Another reference is on page 13 of the Muscle Parts Story Supplement No. 1, Copyright 1970 Ford Motor Company, Vol. MP 1045 July. On the lower right of this page they list the changes needed to take a 289-4V into the High Performance 271 HP 289. One of the items listed is "4-bbl, 480 cubic feet/minute carburetor". This carburetor is listed on page 10-70 of the 1966 Mustang Shop Manual (Carburetor Part Number C6ZF-C) with throttle bores of 1.562 Primary and 1.562 Secondary, a Primary Venturi of 1.125 and a Secondary Venturi of 1.187. The shop manuals before 1968 do not list the CFM rating for any carburetor to the best of my knowledge.
This thread, so far...
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Collapse <a href=../ForumFE/reply.aspx?ID=9102&Reply=9102><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor9102" onclick="return false;"> Autolite 4100 5 sizes</a>&nbsp;-- <font color=#0000ff>Ed Jenkins, <i>11/04/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=9102', contentMargin: 60, icon: $('anchor9102') }); </script>   Autolite 4100 5 sizes -- Ed Jenkins, 11/04/2001
Collapse <a href=../ForumFE/reply.aspx?ID=9107&Reply=9102><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor9107" onclick="return false;">Why on earth count the Pony carbs abortion....er, model? [n/m]</a>&nbsp;-- <font color=#0000ff>Mr F, <i>11/04/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=9107', contentMargin: 60, icon: $('anchor9107') }); </script>  Why on earth count the Pony carbs abortion....er, model? [n/m] -- Mr F, 11/04/2001
 It is another model....... -- Ed, 11/05/2001
Collapse <a href=../ForumFE/reply.aspx?ID=9113&Reply=9102><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor9113" onclick="return false;">RE: Autolite 4100 5 sizes</a>&nbsp;-- <font color=#0000ff>Travis Miller, <i>11/05/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=9113', contentMargin: 60, icon: $('anchor9113') }); </script>  RE: Autolite 4100 5 sizes -- Travis Miller, 11/05/2001
Collapse <a href=../ForumFE/reply.aspx?ID=9116&Reply=9102><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor9116" onclick="return false;">RE: Autolite 4100 5 sizes</a>&nbsp;-- <font color=#0000ff>ED Jenkins, <i>11/05/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=9116', contentMargin: 60, icon: $('anchor9116') }); </script>  RE: Autolite 4100 5 sizes -- ED Jenkins, 11/05/2001
Collapse <a href=../ForumFE/reply.aspx?ID=9139&Reply=9102><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor9139" onclick="return false;">RE: Autolite 4100 5 sizes</a>&nbsp;-- <font color=#0000ff>Bob, <i>11/06/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=9139', contentMargin: 60, icon: $('anchor9139') }); </script>  RE: Autolite 4100 5 sizes -- Bob, 11/06/2001
Collapse <a href=../ForumFE/reply.aspx?ID=9142&Reply=9102><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor9142" onclick="return false;">Are you sure that this........</a>&nbsp;-- <font color=#0000ff>Ed, <i>11/06/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=9142', contentMargin: 60, icon: $('anchor9142') }); </script>  Are you sure that this........ -- Ed, 11/06/2001
Collapse <a href=../ForumFE/reply.aspx?ID=9145&Reply=9102><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor9145" onclick="return false;">RE: Are you sure that this........</a>&nbsp;-- <font color=#0000ff>Bob, <i>11/06/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=9145', contentMargin: 60, icon: $('anchor9145') }); </script>  RE: Are you sure that this........ -- Bob, 11/06/2001
Collapse <a href=../ForumFE/reply.aspx?ID=9148&Reply=9102><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor9148" onclick="return false;">Oh, it's the old SAE vs old Ford rating again....</a>&nbsp;-- <font color=#0000ff>Ed Jenkins, <i>11/06/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=9148', contentMargin: 60, icon: $('anchor9148') }); </script>  Oh, it's the old SAE vs old Ford rating again.... -- Ed Jenkins, 11/06/2001
 RE: Oh, it's the old SAE vs old Ford rating again.... -- Bob, 11/06/2001
 RE: Autolite 4100 5 sizes -- Bob, 11/05/2001
Collapse <a href=../ForumFE/reply.aspx?ID=9140&Reply=9102><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor9140" onclick="return false;">Let's make a sixth...</a>&nbsp;-- <font color=#0000ff>Louie, <i>11/06/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=9140', contentMargin: 60, icon: $('anchor9140') }); </script>  Let's make a sixth... -- Louie, 11/06/2001
 RE: Let's make a sixth... -- Bob, 11/06/2001
Collapse <a href=../ForumFE/reply.aspx?ID=9147&Reply=9102><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor9147" onclick="return false;">I have wanted to try a combo of</a>&nbsp;-- <font color=#0000ff>Ed Jenkins, <i>11/06/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=9147', contentMargin: 60, icon: $('anchor9147') }); </script>  I have wanted to try a combo of -- Ed Jenkins, 11/06/2001
 RE: I have wanted to try a combo of -- Bob, 11/06/2001
Collapse <a href=../ForumFE/reply.aspx?ID=9185&Reply=9102><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor9185" onclick="return false;">RE: Let's make a sixth...</a>&nbsp;-- <font color=#0000ff>Ed Jenkins, <i>11/08/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=9185', contentMargin: 60, icon: $('anchor9185') }); </script>  RE: Let's make a sixth... -- Ed Jenkins, 11/08/2001
Collapse <b>RE: Let's make a sixth...</b>&nbsp;-- <font color=#0000ff>Bob, <i>11/08/2001</i></font>RE: Let's make a sixth... -- Bob, 11/08/2001
Collapse <a href=../ForumFE/reply.aspx?ID=9199&Reply=9102><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor9199" onclick="return false;">My only examples are from Pony Carbs.......</a>&nbsp;-- <font color=#0000ff>Ed, <i>11/08/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=9199', contentMargin: 60, icon: $('anchor9199') }); </script>  My only examples are from Pony Carbs....... -- Ed, 11/08/2001
Collapse <a href=../ForumFE/reply.aspx?ID=9200&Reply=9102><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor9200" onclick="return false;">RE: My only examples are from Pony Carbs.......</a>&nbsp;-- <font color=#0000ff>Bob, <i>11/08/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=9200', contentMargin: 60, icon: $('anchor9200') }); </script>  RE: My only examples are from Pony Carbs....... -- Bob, 11/08/2001
 Great!, Finaly updated flow numbers on modern..... -- Ed Jenkins, 11/09/2001
Collapse <a href=../ForumFE/reply.aspx?ID=9193&Reply=9102><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor9193" onclick="return false;">66 and later 1.12 tops have an undrilled..........</a>&nbsp;-- <font color=#0000ff>Ed, <i>11/08/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=9193', contentMargin: 60, icon: $('anchor9193') }); </script>  66 and later 1.12 tops have an undrilled.......... -- Ed, 11/08/2001
 Great info, guys, now . . . -- Orin, 11/09/2001
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