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PINTO CAR CLUB of AMERICA
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General Help- Ask the Experts...
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Topic:
Vacuum advance
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Topic: Vacuum advance (Read 2952 times)
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1974pintowagon!
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Vacuum advance
«
on:
July 17, 2017, 07:21:22 AM »
Where is best on a stock 2.3 to hook up the vacuum advance? Manifold or ported vacuum? Where is yours hooked up?
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rob289c
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Re: Vacuum advance
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Reply #1 on:
July 18, 2017, 07:40:57 PM »
My Mustang is hooked to a ported source. I believe manifold vacuum would be at full advance all the time.
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rob289c
pintofarm
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Re: Vacuum advance
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Reply #2 on:
July 19, 2017, 08:39:32 AM »
Only at idle is there a difference. Both sources operate exactly the same off idle. So hook it to whatever source that provides the idle that you like.
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The Whistler
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Re: Vacuum advance
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Reply #3 on:
July 19, 2017, 12:18:53 PM »
Sorry to tell you port and direct vacuum do not operate the same at any point! Most Fords use Port vacuum! That includes all Pinto!
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dick1172762
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Re: Vacuum advance
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Reply #4 on:
July 19, 2017, 03:14:12 PM »
YOUR SO RIGHT Whistler!
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pintofarm
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Re: Vacuum advance
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Reply #5 on:
July 20, 2017, 10:35:55 AM »
Could either of you please explain IN DETAIL how they operate differently than I stated above?
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dick1172762
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Re: Vacuum advance
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Reply #6 on:
July 20, 2017, 10:49:23 AM »
Go to the Holley web site to find out. They tell it all better than I can.
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dennisofaz
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Re: Vacuum advance
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Reply #7 on:
July 20, 2017, 05:57:22 PM »
The difference between ported and manifold vacuum is:
Ported vacuum is low at idle (closed throttle), and full vacuum at open throttle.
Manifold vacuum is high at closed throttle, and low at open throttle.
Dennis
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dick1172762
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Re: Vacuum advance
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Reply #8 on:
July 21, 2017, 03:52:14 PM »
Go to
http://www.mortec.com/carbtip1.htm
for a very good site on Holley carbs. These people know Holleys.
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justplainwill72
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Re: Vacuum advance
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Reply #9 on:
July 23, 2017, 06:24:59 PM »
All mine have been ported....but I prefer the mallory yl....kinda expensive but setup correctly and it's killer
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dick1172762
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Re: Vacuum advance
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Reply #10 on:
July 24, 2017, 01:04:47 PM »
Think of it this way. Holley would not put the port outlet on the carbs unless it was the way to go. Don't fight it unless you have no vacuum port to use. If manifold vacuum is all you have, try it.
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PINTO CAR CLUB of AMERICA
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General Help- Ask the Experts...
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dga57
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Topic:
Vacuum advance