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Fuel pump requirments #2467289
03/16/18 12:33 PM
03/16/18 12:33 PM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline OP
Not enough dumb comments...yet
Mr.Yuck  Offline OP
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
What type of flow would I need to support a 700 N/A 512? Any recommendations? I MAY tickle it down the road w/ a 200 shot


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Re: Fuel pump requirments [Re: Mr.Yuck] #2467340
03/16/18 02:27 PM
03/16/18 02:27 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
C
Cab_Burge Online work
I Win
Cab_Burge  Online Work
I Win
C

Joined: Aug 2003
Posts: 43,007
Bend,OR USA
I used a Magnafuel 275 Pro Star that would feed 750 HP plumbed properly using the correct size fuel filters before and after the pump on my old pump gas Duster that ran 9.993 corked up on Oregon pump gas up
I had not listened to magnafuel when I first put that car together and mistakenly used Barry Grant 400 fuel filter between the fuel tank and pump, it had a paper element filter in it that was rated at 10 microns tsk
Magnafuel had told me to use a 100 micron filter between the tank and pump and a 10 micron between the pump and the carb., my message is I could not jet that motor up fat enough to slow the MPH down in the 1/4 mile so I ended up buying a Magnafuel 300 pump which did allow me to jet the motor up enough to slow the car down shruggy
I stumbled onto the different media filter element size later on here on Moparts and change the first filter to the proper size and put the 275 pump back on and the car was good after that up
My message is on your deal I would buy the Magnafuel 300 or 500 pump to start with for your planned on future growth and plumb it properly on the filter size and line size up scope


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Fuel pump requirments [Re: Mr.Yuck] #2467370
03/16/18 03:44 PM
03/16/18 03:44 PM
Joined: May 2008
Posts: 5,399
Aurora, Colorado
451Mopar Offline
master
451Mopar  Offline
master

Joined: May 2008
Posts: 5,399
Aurora, Colorado

Re: Fuel pump requirments [Re: 451Mopar] #2467606
03/17/18 02:30 AM
03/17/18 02:30 AM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
C
Cab_Burge Online work
I Win
Cab_Burge  Online Work
I Win
C

Joined: Aug 2003
Posts: 43,007
Bend,OR USA
Both of these article are based on the standard SAE standard of brake specific fuel consumption(BSFC)between .40 Lbs and .50 Lbs per hour per HP on a motor on a stationary engine dyno at WOT, not in a car accelerating at WOT work scope
Once you get a drag race motor to be real efficient the BSFC will drop down well below .04 LBS per hour per HP, so that being said a 800 HP motor should consume around 400 lbs per fuel per hour per the SAE formula being on the safe , rich, side and most race gasoline weighs around 6.25 lbs per gallon so that motor should consume right at 64 gallons per hour shruggy scope
Once you gain some real life experiences at the track you will find that the SAE theory doesn't work well enough to keep the motor in fuel at WOT under acceleration shock shruggy
The fuel system needs to have the ability to feed more fuel to the motor than it needs, if you accidently lean it out at WOT and the motor goes into detonation you can ruin that motor whiney
Be safe when building and racing, always thumbs twocents
BTW, I am using a Aeromotove 1000 pump to dyno tune the pump gas 572 C.I.EFI motor I'm building for a local customer, I'm shooting for 800+HP on Oregon pump swill luck
I'll post the results on here when I'm done, wish me luck luck

Last edited by Cab_Burge; 03/17/18 02:33 AM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)






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