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Fuel Vapor Separator
#1258262
06/27/12 12:46 PM
06/27/12 12:46 PM
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Joined: Dec 2008
Posts: 109 Texas
Knappy
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Does anyone make a fuel vapor separator for a 440 70 Challenger with 3/8 fuel lines and 1/4 return? The ones I have found all have 5/16 fuel inlet and outlets.
Steve
68 Coronet R/T Hemi 70 Challenger 440-6 70 Challenger R/T S/E 440-6 71 Challenger Convert. 70 Superbird 440-6
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Re: Fuel Vapor Separator
[Re: Knappy]
#1258263
06/27/12 12:50 PM
06/27/12 12:50 PM
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Joined: Jan 2003
Posts: 16,376
dogdays
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I Live Here
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I question the need. What the smaller lines will do is cause the fuel velocity to increase as it goes through the smaller tubes. This will increase the friction loss somewhat, but I doubt it will add so much loss that you can't get fuel through the lines. Keep in mind that fuel is a liquid. Every foot of the fuel line contributes some friction loss or, for the engineers out there, head loss. So what this short length of smaller diameter line does is increase the head loss. It is equivalent to increaing the length of the fuel line by a few feet. R.
Last edited by dogdays; 06/27/12 12:58 PM.
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Re: Fuel Vapor Separator
[Re: Knappy]
#1258265
06/27/12 02:24 PM
06/27/12 02:24 PM
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Joined: Jun 2003
Posts: 21,501 It's a dry heat
gtx6970
Too Many Posts
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Too Many Posts
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Posts: 21,501
It's a dry heat
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Quote:
Does anyone make a fuel vapor separator for a 440 70 Challenger with 3/8 fuel lines and 1/4 return?
short answer - No
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Re: Fuel Vapor Separator
[Re: Knappy]
#1258266
06/27/12 03:52 PM
06/27/12 03:52 PM
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Joined: Jan 2003
Posts: 75,094 A Banana Republic near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,094
A Banana Republic near you.
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Quote:
Does anyone make a fuel vapor separator for a 440 70 Challenger with 3/8 fuel lines and 1/4 return? The ones I have found all have 5/16 fuel inlet and outlets.
Steve
That's because the fuel line is only 3/8" between the tank pickup point and the pump , 5/16 line is the output side of the pump.
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Re: Fuel Vapor Separator
[Re: Orange_Duster]
#1258269
06/28/12 09:14 AM
06/28/12 09:14 AM
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Joined: Dec 2008
Posts: 109 Texas
Knappy
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Posts: 109
Texas
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Thanks guys, did not realize the fuel pump had a 5/16 outlet. I am going to check out the WIX filter. I just did not want to slow the fuel delivery down.
Steve
68 Coronet R/T Hemi 70 Challenger 440-6 70 Challenger R/T S/E 440-6 71 Challenger Convert. 70 Superbird 440-6
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Re: Fuel Vapor Separator
[Re: Knappy]
#1258270
06/28/12 09:21 AM
06/28/12 09:21 AM
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Joined: Jan 2003
Posts: 75,094 A Banana Republic near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,094
A Banana Republic near you.
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Quote:
Thanks guys, did not realize the fuel pump had a 5/16 outlet. I am going to check out the WIX filter. I just did not want to slow the fuel delivery down.
Steve
Factory lines from the pump to the carbs are 5/16 , even on a hemi , so unless you bend up some custom lines , or one of the line makers does them in 3/8 , having a 3/8 filter isn't gaining you anything .
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