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Ported vs. manifold

February 27 2013 at 3:19 PM
  (Login dsrtjeeper)

Correct me if I'm wrong but didn't these FE's come from the factory with manifold vacuum running to the vacuum advance like many other vehicles? Then C.A.R.B. came to be and manufacturers were mandated to hook the vacuum advance to ported vacuum?

1966 F100 LWB
Balanced 390 .060 over, Comp 270s, gasket matched F427 intake, headers, gasket matched/bowl blended C8AE-H heads, 2-1/2" duals, C-O-M with 3:54 gears and Tracloc.

 
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LanceH
(Login cyclone03)
Members

Wheres my PopCorn Avatar......nm

February 27 2013, 4:38 PM 


 
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(Login dsrtjeeper)

Not trying to start something; just asked for truth. n/m

February 27 2013, 4:40 PM 



1966 F100 LWB
Balanced 390 .060 over, Comp 270s, gasket matched F427 intake, headers, gasket matched/bowl blended C8AE-H heads, 2-1/2" duals, C-O-M with 3:54 gears and Tracloc.

 
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TorinoBP88
(Login TorinoBP88)
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This link...

February 27 2013, 4:56 PM 

I dont have time to research when or if ford changed the spec on which port was to be used, but this link has some scanned pictures several posts down which are for 1958 ford fe's and may be informative.

http://www.jalopyjournal.com/forum/showthread.php?t=147989

pic:
http://www.jalopyjournal.com/forum/attachment.php?attachmentid=252640&d=1165851618


********************************************
1964 Galaxie 4Dr Sedan, 289, 3spd 303 (originally w/ Overdrive)
1966 F100 Step Side 240 L6-Auto
1967 416 "390 GT", BI/BO Wide R TL
1968 428, CJ heads, Galaxie Wide R TL

A Bicycle or two as my daily driver - real gas saver.


    
This message has been edited by TorinoBP88 on Feb 27, 2013 4:59 PM


 
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(Login cyclone03)
Members

I have an old FE distributer....

February 27 2013, 4:50 PM 

that has basicly a strait bar under the point plate,with 4 springs on it,I have never seen a distributer with an advance set up like that. The vacuum advance had what looked like 30 deg of movement,the normal advance set up was about 10,not much and sort of backwards.

So my guess is you are correct,early FE's used full manifold vacuum,load sensing timing adjustment.

The Pop Corn is for when the next 15 post tell me I'm full of it.....
Want a handful?

 
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(Login TorinoBP88)
Members

I do have one old dizzy, but never looked inside it... maybe i should dig it out. n/m

February 27 2013, 5:12 PM 

m

********************************************
1964 Galaxie 4Dr Sedan, 289, 3spd 303 (originally w/ Overdrive)
1966 F100 Step Side 240 L6-Auto
1967 416 "390 GT", BI/BO Wide R TL
1968 428, CJ heads, Galaxie Wide R TL

A Bicycle or two as my daily driver - real gas saver.


    
This message has been edited by TorinoBP88 on Feb 27, 2013 5:12 PM


 
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Royce
(Login RoyceP)
Members

FE's used ported vacuum normally

February 27 2013, 5:30 PM 

Some of the smog control applications have a valve that ports distributor vacuum to straight manifold vacuum at water temps above 200 degrees to increase fan speed for better cooling at stop lights. In general though you want ported vacuum for best performance.

[linked image]
1912 Model T Ford touring Salmon (ugh!)
1917 Model T Ford Torpedo runabout green
1915 Model T Ford touring Black of course!
1968 Cougar W code 427 GT-E Madras Blue / Turquoise interior
1968 Cougar GTE 427 Augusta Green / Saddle
http://www.supermotors.net/vehicles/registry/15029/50071-2

 
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ra
(Login 427RComet)
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Re: Ported vs. manifold

February 27 2013, 5:57 PM 

Eric, All engines in 65-66 F100-F250's 240, 300 & 352's had a hard metal vacuum line that was threaded into the distributor vacuum advance and then a push in to carb. (thread in to carb on 240 & 300) All were "PORTED" vacuum. I have Factory Ford drawings and pics from a few different angles that show this. A couple of my trucks had the stock hard vacuum line. Probably still have at least one.

Ford put a loop~hump in hard line to allow for distributor adjustment.


    
This message has been edited by 427RComet on Feb 27, 2013 6:19 PM


 
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Eric B.
(Login dsrtjeeper)

Thanks guys. Playing with an idea

February 27 2013, 7:50 PM 

and will report my findings.

1966 F100 LWB
Balanced 390 .060 over, Comp 270s, gasket matched F427 intake, headers, gasket matched/bowl blended C8AE-H heads, 2-1/2" duals, C-O-M with 3:54 gears and Tracloc.

 
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Gerry
(Login gerryproctor)
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Not all were ported in the sense we understand today.

February 28 2013, 5:26 AM 

Ford used what they called a Loadomatic advance mechanism. It wasn't all that successful or long-lived, though. It tapped the venturi using airflow to regulate the advance mechanism.

 
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