Re: Distributor Vacuum Advance Can.........
[Re: Kudakidd]
#3116554
01/25/23 09:15 PM
01/25/23 09:15 PM
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Joined: May 2016
Posts: 630 Ct
Wirenut
mopar
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mopar
Joined: May 2016
Posts: 630
Ct
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....... cap it or use it? If it’s a street car I would use it . But a street car means a streetcar not a race engine driven on the street. E here berg has written a ton about this
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Re: Distributor Vacuum Advance Can.........
[Re: rumblefish72]
#3116689
01/26/23 11:27 AM
01/26/23 11:27 AM
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Joined: Jan 2003
Posts: 75,017 U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,017
U.S.S.A.
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This and their mechanical advance limiting plate if you're going to play with initial timing so you don't get to much total mechanical advance.
running up my post count some more .
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Re: Distributor Vacuum Advance Can.........
[Re: JohnRR]
#3116777
01/26/23 04:07 PM
01/26/23 04:07 PM
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Joined: Sep 2003
Posts: 19,408 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,408
north of coder
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with any factory distributor used on a modified engine, and even a stocker, one needs to get inside and play with the weights and springs. every combination of the same components is slightly different, so using specs someone suggests will work, is just the STARTING point. also be forewarned, this is NOT a 5 minute job.......... it takes some trial and error to get the right weight spring and weight calibration for your combination, THEN, you need to work on the vacuum advance curve. just my personal experience with distributors over the many years. your mileage will vary.
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Re: Distributor Vacuum Advance Can.........
[Re: Kudakidd]
#3116797
01/26/23 04:55 PM
01/26/23 04:55 PM
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Joined: Aug 2003
Posts: 43,190 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,190
Bend,OR USA
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....... cap it or use it? What application, fuel used and motor type?
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Distributor Vacuum Advance Can.........
[Re: Kudakidd]
#3116918
01/27/23 01:53 AM
01/27/23 01:53 AM
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Joined: Aug 2003
Posts: 43,190 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,190
Bend,OR USA
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I would set the total timing (rev up beyond the mechanical advance) to 34 BTDC with the vacuum disconnect and see how you like that and then hook it back up and try that also What brand spark plug and heat range are you using? How much mechanical compression ratio and which heads, stock or aluminum?
Last edited by Cab_Burge; 01/27/23 01:54 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Distributor Vacuum Advance Can.........
[Re: Kudakidd]
#3116989
01/27/23 10:52 AM
01/27/23 10:52 AM
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Joined: Jan 2003
Posts: 75,017 U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,017
U.S.S.A.
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I would set the total timing (rev up beyond the mechanical advance) to 34 BTDC with the vacuum disconnect and see how you like that and then hook it back up and try that also What brand spark plug and heat range are you using? How much mechanical compression ratio and which heads, stock or aluminum? Champion RJ14YC. The heads are stock cast iron. I do not know the compression ratio. you need to change those plugs , they are way too hot
running up my post count some more .
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Re: Distributor Vacuum Advance Can.........
[Re: JohnRR]
#3117091
01/27/23 03:15 PM
01/27/23 03:15 PM
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Joined: Aug 2003
Posts: 43,190 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,190
Bend,OR USA
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I would set the total timing (rev up beyond the mechanical advance) to 34 BTDC with the vacuum disconnect and see how you like that and then hook it back up and try that also What brand spark plug and heat range are you using? How much mechanical compression ratio and which heads, stock or aluminum? Champion RJ14YC. The heads are stock cast iron. I do not know the compression ratio. you need to change those plugs , they are way too hot Try RJ12YC or something similar in heat range from NGK or Autolite
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Distributor Vacuum Advance Can.........
[Re: Kudakidd]
#3117380
01/28/23 10:26 PM
01/28/23 10:26 PM
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Joined: Aug 2003
Posts: 43,190 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,190
Bend,OR USA
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AC= GM Autolite = Ford = Prestolite after around 1970 NGK = Imports Champion= Mopar Verdad!
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Distributor Vacuum Advance Can.........
[Re: Kudakidd]
#3117405
01/29/23 12:27 AM
01/29/23 12:27 AM
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Joined: Oct 2006
Posts: 246 Cranberry Twp PA (North of Pit...
rumblefish72
enthusiast
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enthusiast
Joined: Oct 2006
Posts: 246
Cranberry Twp PA (North of Pit...
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NGK = No Good Kind I used to work at a motorcycle dealership back in the 80's ... when putting in fresh plugs in a Suzuki, all the mechanics would ask the parts guy for a new set of of No Good Kind. We all got a chuckle. It stuck.
1972 Pro-Street 'Cuda, 500" Eagle stoker B Block, Eddy RPM heads, Victor Manifold, 850 Mighty Demon, Hemi 4 Speed, Dana 60 w/4.88 gears - Built by Hansen Racing Middlesex - NJ
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