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Re: Return line fuel system?
[Re: Thumperdart]
#1540719
11/28/13 10:47 PM
11/28/13 10:47 PM
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Joined: Oct 2004
Posts: 354
Livonia Michigan
440dart
enthusiast
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enthusiast
Joined: Oct 2004
Posts: 354
Livonia Michigan
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I run a BG 250 pump, on a street car. this is the way I was told to run the return line. Before the return system was installed, the pump allways sounded like it was laboring, and very loud. Now with the return, you almost can't here it with the engine running. It holds a constant 7 lbs.
Yes I live in Michigan, so there is still 1 light on
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Re: Return line fuel system?
[Re: 440dart]
#1540722
11/28/13 11:05 PM
11/28/13 11:05 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
2nd. pic.
is that a dead head regulator used as a return?
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Re: Return line fuel system?
[Re: Quicktree]
#1540724
11/29/13 01:41 AM
11/29/13 01:41 AM
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Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
tubtar
master
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master
Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
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Quote:
Quote:
2nd. pic.
is that a dead head regulator used as a return?
No , it's a bypass. I have the same one.
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Re: Return line fuel system?
[Re: 440dart]
#1540725
11/29/13 10:26 AM
11/29/13 10:26 AM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
2nd. pic.
I see low flow steel hydraulic fittings, should use tube 90,60, 45s on fuel systems. Also notice the settings are weird.  Also I would not run the gauge during normal running. Just used it to set it up and then take out and plug it. It won't live like that.
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Re: Return line fuel system?
[Re: 440dart]
#1540726
11/29/13 10:29 AM
11/29/13 10:29 AM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
I run a BG 250 pump, on a street car. this is the way I was told to run the return line. Before the return system was installed, the pump allways sounded like it was laboring, and very loud. Now with the return, you almost can't here it with the engine running. It holds a constant 7 lbs.
A regulator, bypass etc should never be mounted solid to the motor, because vibration will unset the regulator and cause cracks in your fittings hanging on the end like that...if you make power.
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Re: Return line fuel system?
[Re: Quicktree]
#1540727
11/29/13 01:25 PM
11/29/13 01:25 PM
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Joined: Oct 2004
Posts: 8,165
Left Coast
BobR
master
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master
Joined: Oct 2004
Posts: 8,165
Left Coast
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Quote:
Quote:
2nd. pic.
is that a dead head regulator used as a return?
It's a return style regulator. 440Dart is my brother.
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Re: Return line fuel system?
[Re: Challenger 1]
#1540728
11/29/13 01:27 PM
11/29/13 01:27 PM
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Joined: Oct 2004
Posts: 8,165
Left Coast
BobR
master
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master
Joined: Oct 2004
Posts: 8,165
Left Coast
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Quote:
Quote:
I run a BG 250 pump, on a street car. this is the way I was told to run the return line. Before the return system was installed, the pump allways sounded like it was laboring, and very loud. Now with the return, you almost can't here it with the engine running. It holds a constant 7 lbs.
A regulator, bypass etc should never be mounted solid to the motor, because vibration will unset the regulator and cause cracks in your fittings hanging on the end like that...if you make power.
That motor makes about 700 HP. You may be right about the solid mounting but it's been that way for 4+ years. He's had zero issues and he drives it on the street pretty regularly.
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Re: Return line fuel system?
[Re: BobR]
#1540729
11/29/13 02:35 PM
11/29/13 02:35 PM
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Joined: Feb 2009
Posts: 1,019
Finland
mafo
super stock
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super stock
Joined: Feb 2009
Posts: 1,019
Finland
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I use a slightly different setup, cant say if it s better or not but it seems to work  
-65 Valiant,420", all motor,2700#, dot tires, 8,42 @ 160,2
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Re: Return line fuel system?
[Re: SLOW67]
#1540731
11/29/13 10:50 PM
11/29/13 10:50 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Mine currently has a Mallory 4309 reg. that is boost referenced and a 3/8 feed and return to the tank, with a walbro 190 pump. It just dumps back in the top of the cell but I do have foam in it. Right now it is all plumbed in 3/8 fuel injection hose so NHRA frowns on that plus its a safety item too I suppose. I wanted to simplify it and upgrade the line at the same time but I guess I'll just buy twice the material and put it back the way it is.
Are you saying its all rubber hose... change that out
and run tubing
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