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Help me design a fuel system #1065569
08/30/11 02:44 AM
08/30/11 02:44 AM
Joined: Mar 2005
Posts: 150
Des Moines, IA
CoreyWilson Offline OP
member
CoreyWilson  Offline OP
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Joined: Mar 2005
Posts: 150
Des Moines, IA
Trying to get some ideas for the fuel system in my pulling truck so I can do some shopping over the winter. The motor is a 470cu RB with a single 4bbl. Would like to see 700hp out of the motor, but won't know until it hits the dyno. Plan on spinning the motor around 7500 at upwards to 20 seconds a pull. I'll be starting from scratch on the fuel system with a fuel cell behind the cab. My guess is that if the system is adequate for the motor the constant high rpm wouldn't matter, but also wondered if the rpm drop in a car while shifting during a race might give the pump a small window to catch up to the demands of the engine.

So, what would some of you guys recommend for a fuel system?

Re: Help me design a fuel system [Re: CoreyWilson] #1065570
08/30/11 07:44 AM
08/30/11 07:44 AM
Joined: Jan 2003
Posts: 25,963
United Socialist States of Ame...
T
tboomer Offline
Too Many Posts
tboomer  Offline
Too Many Posts
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Joined: Jan 2003
Posts: 25,963
United Socialist States of Ame...
Corey..You live in Ames now? JUst up the road in Story City,there is J&C Performance. I am sure he can help you. Pm me for his number!


Need your rear end checked out? Contact Grizzly!!
Re: Help me design a fuel system [Re: CoreyWilson] #1065571
08/30/11 10:55 AM
08/30/11 10:55 AM
Joined: Apr 2004
Posts: 12,339
somwhere
S
smokinwoody Offline
I Live Here
smokinwoody  Offline
I Live Here
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Joined: Apr 2004
Posts: 12,339
somwhere
I like over kill...Aeromotive 2000 pump...thats 350gph..uses -10 lines and has a recirculating bypass...run it dead head to a Holley Large type regulator http://www.holley.com/12-704.asp ..then either -8 lines or reduced -6 lines to the fuel bowls..I have had no problems with this setup..




Re: Help me design a fuel system [Re: smokinwoody] #1065572
08/30/11 12:13 PM
08/30/11 12:13 PM
Joined: Mar 2005
Posts: 150
Des Moines, IA
CoreyWilson Offline OP
member
CoreyWilson  Offline OP
member

Joined: Mar 2005
Posts: 150
Des Moines, IA
Ted, Yeah, finally updated my location, been in Ames for a year now while at ISU.

I tend to favor overkill on most things I build and definitely don't want to skimp on the fuel system. I haven't looked much into the aeromotive pumps, but have eyed the Magnafuel pumps for a couple months now.

Re: Help me design a fuel system [Re: CoreyWilson] #1065573
08/30/11 12:21 PM
08/30/11 12:21 PM
Joined: Nov 2008
Posts: 416
London,Ontario,Canada
1
1962Savoy Offline
mopar
1962Savoy  Offline
mopar
1

Joined: Nov 2008
Posts: 416
London,Ontario,Canada
Quote:

Trying to get some ideas for the fuel system in my pulling truck so I can do some shopping over the winter. The motor is a 470cu RB with a single 4bbl. Would like to see 700hp out of the motor, but won't know until it hits the dyno. Plan on spinning the motor around 7500 at upwards to 20 seconds a pull. I'll be starting from scratch on the fuel system with a fuel cell behind the cab. My guess is that if the system is adequate for the motor the constant high rpm wouldn't matter, but also wondered if the rpm drop in a car while shifting during a race might give the pump a small window to catch up to the demands of the engine.

So, what would some of you guys recommend for a fuel system?




I use theAeromotive 2000 pump with there matching regulator and there electronic speed controller for the pump.10an fuel supply ,10an return and twin 8an to the carb.
Great system with no problems with 750HP@ 6500RPM

6802155-IMGP2185.JPG (110 downloads)
Re: Help me design a fuel system [Re: 1962Savoy] #1065574
08/30/11 01:02 PM
08/30/11 01:02 PM
Joined: Nov 2008
Posts: 416
London,Ontario,Canada
1
1962Savoy Offline
mopar
1962Savoy  Offline
mopar
1

Joined: Nov 2008
Posts: 416
London,Ontario,Canada
another pix

6802210-IMGP2215.JPG (190 downloads)
Re: Help me design a fuel system [Re: 1962Savoy] #1065575
08/30/11 01:12 PM
08/30/11 01:12 PM
Joined: Feb 2007
Posts: 2,578
sweden
1
1Fast340 Offline
master
1Fast340  Offline
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Joined: Feb 2007
Posts: 2,578
sweden
my fuelsystem is built with pump,filter and regulator from Fuelab,not cheap and not a big brandname (yet) have only been used for a short time and on Ethanol but to be honest the parts and instructions feels and looks like topshelf stuff to me. i thrust the stuff so much that i put it under a friends car (until my car runs again) that is regulary driven on the street and there is a pretty long drive to the track. the pump will suport way more power than you are making but that just leves you room to make more power in the future..

Re: Help me design a fuel system [Re: CoreyWilson] #1065576
08/30/11 02:17 PM
08/30/11 02:17 PM
Joined: Aug 2003
Posts: 43,237
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
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Joined: Aug 2003
Posts: 43,237
Bend,OR USA
I have bought , built and used several different brands of fule pumps, regulators and filter in the last 25 yrs. I like your thinking of overkill, that is the way to go I now use Magnafuel and wish that I had bought the 500 pump to start with instead of cheaping out with the 275 pump because my motor only made 612 HP. I hopped it up later and ended up buying a 300 pump, I now have a motor that makes close to 900 HP and need anther pump Buy the big one now One other thing, call Magnafuel and follow thier instructions on which component, size and location, especially on the fuel filters and micron size ,to the letter for a trouble free system


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Help me design a fuel system [Re: Cab_Burge] #1065577
08/30/11 07:46 PM
08/30/11 07:46 PM
Joined: Mar 2005
Posts: 150
Des Moines, IA
CoreyWilson Offline OP
member
CoreyWilson  Offline OP
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Joined: Mar 2005
Posts: 150
Des Moines, IA
62Savoy, great looking pictures. I do like the A2000 for the return style pump which is what got me liking the Magnafuel pumps as well. Do you think the electronic pump controller is necessary in a track only vehicle? What made you include that in your system?

1Fast340, the Fuelab website looks decent, but it'd be nice to know more about their longevity.


Cab, what do you think of the Magnafuel kits they sell? I like that idea of getting everything in one package, but might still be worth a call to the tech line to see if they suggest different components for my build.

Re: Help me design a fuel system [Re: CoreyWilson] #1065578
08/31/11 01:26 AM
08/31/11 01:26 AM
Joined: Aug 2003
Posts: 43,237
Bend,OR USA
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Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
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Joined: Aug 2003
Posts: 43,237
Bend,OR USA
I didn't know that they sold kits I bought a BG 280 pump first and then saw on here that they where not a street pump and saw a lot of Mopart members on here having troubles with BG pumps I ended up with the Magnafuel 275 pump with a BG 500 fuel filter (10 micron don't do that ) mounted between the tank and pump fed by a #10(5/8 inch) AN line and then #8(1/2 inch) return and # 8 main hard line to the BG four port regulator mounted in front of the motor on the elephant ears I ran a sixpak originally, hence the four port regulator. I really like both of my Mganfuel pumps I just wish that I had been bright enough to buy the Magnafuel 500 pump to start with, I even bought the bare pumps with no filters on them to save money


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Help me design a fuel system [Re: Cab_Burge] #1065579
08/31/11 08:33 AM
08/31/11 08:33 AM
Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
J
jim sciortino Offline
top fuel
jim sciortino  Offline
top fuel
J

Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
Product Engineering.....

Re: Help me design a fuel system [Re: jim sciortino] #1065580
08/31/11 11:43 AM
08/31/11 11:43 AM
Joined: Nov 2010
Posts: 1,397
Carson City, Nevada
Biginchmopar Offline
pro stock
Biginchmopar  Offline
pro stock

Joined: Nov 2010
Posts: 1,397
Carson City, Nevada
I would say get a Mallory 250 pump and a 3 port return style regulator. Run #8 up to the regulator and #8 return to the cell. We ran a car at Bonneville with this setup. The motor made close to 800HP and never had a problem. At Bonneville we are at wide open throttle for over 45 seconds.


Re: Help me design a fuel system [Re: Cab_Burge] #1065581
08/31/11 12:12 PM
08/31/11 12:12 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
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Posts: 52,972
Romeo MI
I run a pair of Holley black 150s in parallel with a
pair of #10 lines from the tank to a pair of screen
type filters into the pumps, a #10 line forward
to a Mallory 4 port return style regulator and a #8
return line... this is for E-85... pressure holds steady
at 7.5# with 130 needle and seats front and rear

Re: Help me design a fuel system [Re: Biginchmopar] #1065582
08/31/11 08:35 PM
08/31/11 08:35 PM
Joined: Mar 2005
Posts: 150
Des Moines, IA
CoreyWilson Offline OP
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CoreyWilson  Offline OP
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Joined: Mar 2005
Posts: 150
Des Moines, IA
Magnafuel has kits with fittings, regulator and relay harness. Just add hose. The Prostar 500 kit runs 850 in summit.

The feedback on the Mallory pump is nice to see, I've heard good reports on the Mallory 250, but not from an 800hp motor. The two Holley blacks are also a viable option, but at 160 a piece I think I might be getting up to the Magnafuel prices. If I had some fittings or other parts I could re use I might have considered that route.

Re: Help me design a fuel system [Re: CoreyWilson] #1065583
08/31/11 09:34 PM
08/31/11 09:34 PM
Joined: Oct 2010
Posts: 2,408
Ambridge, Pa.
R
rickraw Offline
top fuel
rickraw  Offline
top fuel
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Joined: Oct 2010
Posts: 2,408
Ambridge, Pa.
i run a mallory 140 pump, #10 line from sump to filter to pump to regulator, # 6 to carb. no fuel starvation when racing, no vapor lock on the street. 700- 720 hp. a lot lower cost than the high dollar pumps, with the same results. stay safe, seeya.

Re: Help me design a fuel system [Re: rickraw] #1065584
08/31/11 09:58 PM
08/31/11 09:58 PM
Joined: Mar 2005
Posts: 150
Des Moines, IA
CoreyWilson Offline OP
member
CoreyWilson  Offline OP
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Joined: Mar 2005
Posts: 150
Des Moines, IA
Not sure if I'd feel safe running a single 140gph pump, another Dodge I pull with was running a Holley Blue, which I know is only rated at 110gph, but was seeing fuel pressure drop at the end of the track. I'd just feel better having a little bigger margin of safety on the pump.

Re: Help me design a fuel system [Re: CoreyWilson] #1065585
08/31/11 10:11 PM
08/31/11 10:11 PM
Joined: Apr 2005
Posts: 1,106
Quebec, Canada
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Diablo Offline
super stock
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Joined: Apr 2005
Posts: 1,106
Quebec, Canada
With pulling you do not need over kill unless your wallet allows for it.

We ran a summit 140 pump in our 496ci 850hp 7500rpm for all of its hard life. Never a problem. I would just add that make sure your pump is gravity fed so it doesn't have to suck and push.

Drag racers have the effect of the fuel being pushed backwards do to force but we do not have to worry about that.

Oh ya... those holly blues suck lol







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