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Air Gap vs R4b height diff |
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71AMX4014SPD 
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Joined: Jul/02/2007 Location: United States Status: Offline Points: 1138 |
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 Topic: Air Gap vs R4b height diffPosted: Mar/31/2015 at 7:48am |
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Has anyone used both intakes back to back on the same engine to compare? Would a loss of power be noticed going from the Air Gaps modern design to a 60's tech R4b? I also need to know how much height difference between the two; the Air gap won't allow hood closure on my 71 AMX with the stock flapper air cleaner, would the R4b?
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 1968 Javelin 360 727 B/W/R 1970 AMX 390 4spd Bayshore Blue 1971 Jav/AMX 401 4spd B6 |
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ramblinrev
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Joined: Dec/28/2008 Location: Wisconsin Status: Offline Points: 11543 |
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Posted: Mar/31/2015 at 8:05am |
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Isn't the R4B as tall or taller?
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74 Hornet Hatchback X twins (since 1977)
62 American Convertible (still worth the $50 I spent in 1973!) AMCRC #513, AMO #384 70 AMX 360 4-speed (since 1981) |
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Sonic Silver
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Joined: Nov/23/2011 Location: East Tennessee Status: Offline Points: 7966 |
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Posted: Mar/31/2015 at 9:17am |
The best intake that I have found for a combination of weight, hood clearance, and performance is an Offenhauser Equaflow 360. They are still made new, and listed on Summit or Jeg's. This is not the same intake as the Offy Dual Port 360. Also, the stock intake is decent if you aren't interested in turning a bunch of rpm, but is heavy. |
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360MDJav
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Joined: Feb/18/2012 Location: Georgia Status: Offline Points: 640 |
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Posted: Mar/31/2015 at 6:25pm |
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I believe you're going to run into the same clearance issues with the R4B. I'm running a
Performer on my 1973, and I can't use the flapper on that without possible damage. |
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1970 Big Bad Orange Donohue
1971 ADPS Javelin 1973 Javelin/AMX 401 |
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71AMX4014SPD
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Joined: Jul/02/2007 Location: United States Status: Offline Points: 1138 |
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Posted: Mar/31/2015 at 7:24pm |
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Thanks for that info, I will now go about my next task of creating a dropped air cleaner base. Or get a stock intake!
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1968 Javelin 360 727 B/W/R 1970 AMX 390 4spd Bayshore Blue 1971 Jav/AMX 401 4spd B6 |
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360MDJav
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Joined: Feb/18/2012 Location: Georgia Status: Offline Points: 640 |
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Posted: Mar/31/2015 at 7:57pm |
I may go back to a stock intake. They're heavy, but the factory parts fit as they should.  |
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1970 Big Bad Orange Donohue
1971 ADPS Javelin 1973 Javelin/AMX 401 |
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bikerfox
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Posted: Mar/31/2015 at 10:39pm |
Had to do that on the SC. Installed a torker intake, which was much taller than a stock intake. The SCs have a unique tube design and fortunately, there are repoped tubs. Cut it down quite a bit, installed it with the stock air cleaner and it all now works nicely.
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1969 Rebel SST (1970-1987)
1968 AMX (2005-2011) 1969 SC/Rambler (2011-2019) 1970 Javelin (2019 to ?)"Jane" |
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71AMX4014SPD wrote: