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Help set up my fuel system
#1763614
02/26/15 02:50 PM
02/26/15 02:50 PM
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Joined: Jun 2006
Posts: 5,161
CT
GTX MATT
OP
master
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OP
master
Joined: Jun 2006
Posts: 5,161
CT
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Need to upgrade my fuel system on my street/strip Satellite. It's adequate for street use but has started to run out of fuel at the top of third when I've gotten on it on a hill (highway onramp). Right now the engine is in the 525 HP neighborhood, car should run mid 11s but hasn't been down the strip yet as I'm still sorting it out. Plans in the near future are for headwork and 600-650 HP. I'm thinking 1/2 inch pickup and fuel line up to the mechanical pump, with one Holley black pump. 9/16 line from the pump to carb with a dead head fuel pressure regulator. Does this sound sufficient? I would think that this should be more than enough but I really don't know. 
Last edited by GTX MATT; 02/26/15 02:51 PM.
Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street
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Re: Help set up my fuel system
[Re: GTX MATT]
#1763615
02/26/15 03:19 PM
02/26/15 03:19 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:
Need to upgrade my fuel system on my street/strip Satellite. It's adequate for street use but has started to run out of fuel at the top of third when I've gotten on it on a hill (highway onramp).
Right now the engine is in the 525 HP neighborhood, car should run mid 11s but hasn't been down the strip yet as I'm still sorting it out. Plans in the near future are for headwork and 600-650 HP.
I'm thinking 1/2 inch pickup and fuel line up to the mechanical pump, with one Holley black pump. 9/16 line from the pump to carb with a dead head fuel pressure regulator. Does this sound sufficient? I would think that this should be more than enough but I really don't know.
Why the 9/16 line... the 1/2 is your choke/flow
and is more than enough.. I assume you would run on
the mech pump and turn on the black when racing
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Re: Help set up my fuel system
[Re: rt66jim]
#1763617
02/26/15 04:48 PM
02/26/15 04:48 PM
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Joined: Jan 2011
Posts: 4,785
Utah and Alaska
astjp2
master
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master
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
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I went with 1/2" stainless tubing from tank to frame rail by pump, -8 hose from tubing to pump then back to the tubing from pump to regulator, 3/8" tubing from regulator to each carb on a 572 hemi. Tim
1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
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Re: Help set up my fuel system
[Re: GTX MATT]
#1763619
02/26/15 08:01 PM
02/26/15 08:01 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:
Quote:
Quote:
Need to upgrade my fuel system on my street/strip Satellite. It's adequate for street use but has started to run out of fuel at the top of third when I've gotten on it on a hill (highway onramp).
Right now the engine is in the 525 HP neighborhood, car should run mid 11s but hasn't been down the strip yet as I'm still sorting it out. Plans in the near future are for headwork and 600-650 HP.
I'm thinking 1/2 inch pickup and fuel line up to the mechanical pump, with one Holley black pump. 9/16 line from the pump to carb with a dead head fuel pressure regulator. Does this sound sufficient? I would think that this should be more than enough but I really don't know.
Why the 9/16 line... the 1/2 is your choke/flow
and is more than enough.. I assume you would run on
the mech pump and turn on the black when racing
Sorry Mr P - I meant 3/8 I just doubled it when I typed it up.
Is there a reason I couldn't run the black full time?
You would be getting marginal with 3/8.. I would
run 1/2 just in case... you can run the pump all
the time
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Re: Help set up my fuel system
[Re: GTX MATT]
#1763620
02/26/15 08:22 PM
02/26/15 08:22 PM
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Joined: Aug 2003
Posts: 43,127
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,127
Bend,OR USA
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I use to use a Holley blue 110 GPH electric pump between the tank and the Carter 3 valve NASCAR mechanical fuel pump on the motor without a regulator on my old NHRA 426 C.I. Max Wedge Stocker. The mechanical fuel pump will and does act as a pressure regulator   My message is don't waste your time and money on a regulator now before trying that electric pump working in series with your mechanical pump  A 1/2 inch O.D., 7/16 I.D. line, is fine as far as I've used for motors up to 700+ HP My new drag car will have a 5/8 O.D., #10 AN size, hardline from the pump to the pressure reg. mounted up front in front of the carb. due to shooting for 850 +HP carbureted now with EFI in the potential future for more power with a power adder later. I'll use #12 AN from the tank to the 500 GPH electric pump to start with, over build it once instead of doing it twice BTW, how many GPH is that Holley black pump rated at
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Help set up my fuel system
[Re: QTR MILR]
#1763624
02/27/15 12:37 PM
02/27/15 12:37 PM
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Joined: Apr 2003
Posts: 1,627
anywhere@ anytime
actionange
top fuel
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top fuel
Joined: Apr 2003
Posts: 1,627
anywhere@ anytime
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Quote:
I like the KISS method.... I ran 1/2 line up to the passenger fender to the regulator then used two 3/8 lines from there to the carb. I used the Holley Blue pump with regulator. Works fine on my car. No pressure problems. My motor is over 650hp. I run it on the track and street with no issues. 
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Re: Help set up my fuel system
[Re: actionange]
#1763625
02/27/15 01:43 PM
02/27/15 01:43 PM
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Joined: Jun 2006
Posts: 5,161
CT
GTX MATT
OP
master
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OP
master
Joined: Jun 2006
Posts: 5,161
CT
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Thanks for the info guys.
Heres another question, looks like the Holley Black uses 3/8 NPT input and output. I can't find a flare nut for 3/8 NPT for 1/2 inch line anywhere, what gives?
Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street
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Re: Help set up my fuel system
[Re: GTX MATT]
#1763626
02/27/15 01:47 PM
02/27/15 01:47 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:
Thanks for the info guys.
Heres another question, looks like the Holley Black uses 3/8 NPT input and output. I can't find a flare nut for 3/8 NPT for 1/2 inch line anywhere, what gives?
Put a adapter from 3/8 to 1/2.... also I like to drill
out the adapters to get a bit more flow
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Re: Help set up my fuel system
[Re: StealthWedge67]
#1763633
03/04/15 03:20 AM
03/04/15 03:20 AM
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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:
Quote:
Quote:
Need to upgrade my fuel system on my street/strip Satellite. It's adequate for street use but has started to run out of fuel at the top of third when I've gotten on it on a hill (highway onramp).
Right now the engine is in the 525 HP neighborhood, car should run mid 11s but hasn't been down the strip yet as I'm still sorting it out. Plans in the near future are for headwork and 600-650 HP.
I'm thinking 1/2 inch pickup and fuel line up to the mechanical pump, with one Holley black pump. 9/16 line from the pump to carb with a dead head fuel pressure regulator. Does this sound sufficient? I would think that this should be more than enough but I really don't know.
Why the 9/16 line... the 1/2 is your choke/flow
and is more than enough.. I assume you would run on
the mech pump and turn on the black when racing
Will a mechanical pump draw through an electric pump when on the street just driving around? I wouldn't mind having an electric pump at hand for race duty, but it would be nice to be able to drive around town on just the mechanical pump.
(sorry for the hi-jack)
My buddy does it on his 460.. mech pump with a holley
blue in the rear... so yeah I guess it works..he
has been doing it about 6 years now... he runs 11.50
on motor and 10.80 on a little spray
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Re: Help set up my fuel system
[Re: MR_P_BODY]
#1763636
03/04/15 04:14 AM
03/04/15 04:14 AM
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Joined: Jun 2006
Posts: 5,161
CT
GTX MATT
OP
master
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OP
master
Joined: Jun 2006
Posts: 5,161
CT
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I have a friend with a carter electric (not sure which one) that the mechanical pump wont pump through, he's gotten stranded a couple of times over the years when the electric pump dies, so it must depend on the pump.
Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street
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Re: Help set up my fuel system
[Re: 383man]
#1763638
03/06/15 11:14 AM
03/06/15 11:14 AM
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Joined: Nov 2003
Posts: 1,033
Madison, Wisconsin
chrisnben
super stock
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super stock
Joined: Nov 2003
Posts: 1,033
Madison, Wisconsin
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I'm a huge fan of the quieter gerator vane pumps such as the HP125 Holley or Mallory 140 along with a 100 micron filter. And also running a return line system! Just run one GOOD electric pump with return and it will last for years! Do it once, do it right. Of course use a return style regulator and I'm a fan of -8AN single line to the carb with the inline gauge and another 40 micron filter. Remember, same size line up & back (1/2" with your future add-ons). Simple with the new 1/2" stock pickup tubes for stock tanks now (Vansauto.com). Most of the tanks have an "extra" vent line you can use for the return- or with a new tank, weld on a bung & fitting for it. 
'70 Cuda "Badfish 2"- in the works
Home of MoPar University- We school 'em one at a time!!
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Re: Help set up my fuel system
[Re: chrisnben]
#1763639
03/06/15 03:44 PM
03/06/15 03:44 PM
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Joined: Jul 2006
Posts: 4,179
California
mickm
master
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master
Joined: Jul 2006
Posts: 4,179
California
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i don't know, but it seems to me that fuel systems get way overthought and over bought. i run the stock 3/8" fuel line and pickup to a carter mechanical pump from mancini. from there i run 5/16" line to a tee, and 5/16" line to both carbs. essentially, it is a stock hemi system. the pump was supposed to self regulate to the 5.5-6psi that the carters need, but was all over the map, as high as 10psi. i got another pump from them, the same. so i hung a holley regulator directly off of the pump. other than that, this is a stock system. so far i have no indication of starving for fuel, and i run 2 650 edelbrocks. granted, i haven't taken it down the track, so i don't know what it will do after 10-11 seconds of full throttle, but if there was an issue i could most likely up the pressure at the regulator and that may solve it, even for the track. so a basically stock system is feeding 540" and 1300cfm, so far with no issues. and yes, i do pound it! 
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.....I would go with -8 minimum from the tank to pump and from pump to regulator (skip the mechanical pump), and -6 from regulator to carb. Just my 
