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03dakrt
06-24-2008, 03:05 AM
Trying to figure out if my stock fuel setup can keep up. Would like to keep it stock if possible. Would do a 255 in tank if needed.
mods:

403 stroker
11.2:1 CR
Aluminum Edelbrock heads
M-1 4BBl intake manifold
SCT PRP with 34lb injectors
Crane Cams 1.6 gold RR
hydraulic flat tappet cam with AMC lifters
Duration 230/236@.050
Lift .520/.523
installed at 105 cam intake centerline is 106
K&N Xtreme air filter 14x3.5
F&B 55MM TB
Spintech headers, Spintech 3 inch tru-duals, Magnaflow mufflers
MSD 6l

uwntsumrtII
06-24-2008, 03:23 AM
you could do a return setup like mine if needed.

slvr03dakrt
06-24-2008, 03:55 AM
I'm running the stock fuel system on mine right now with 24lb injectors and it seems to keep up with the demand but I won't know until I hit the dyno. I was also thinking of upgrading to a 255lph pump in the near future.

03dakrt
06-26-2008, 03:02 AM
Anyone know the L/HR on a stock pump?

03dakrt
06-26-2008, 03:28 AM
Answered my own question.
Part No: E7168M
Gallons Per Hour 50-65/ Liters Per Hour 189-245.7
PSI Shut Off 100-115
Type Gerotor Jet
Volts 12

As long as the data from the manufacturer is right this pump could support up to 540HP N/A at the flywheel.

My motor should make around 425HP. I am going to try the stock pump and see if it can keep up.

Rick Adams
06-26-2008, 10:19 AM
Any word on your new head?

03dakrt
06-26-2008, 01:06 PM
Any word on your new head?

It is on its way. Should be here any day.

Lederip
06-26-2008, 03:36 PM
I ran out of fuel with the stock fuel system at 400hp. This was verified on a dyno. My BSFC is higher with the blower. When I upgraded to the Cell and return system I found that the oem fuel line was kinked from the factory. Give the stock system a try,you will know really quick if its enough using your wideband.
Ken

03dakrt
06-27-2008, 02:25 AM
I ran out of fuel with the stock fuel system at 400hp. This was verified on a dyno. My BSFC is higher with the blower. When I upgraded to the Cell and return system I found that the oem fuel line was kinked from the factory. Give the stock system a try,you will know really quick if its enough using your wideband.
Ken

Thanks Ken

Intense RT
06-27-2008, 04:02 AM
@60*F a gallon of gasoline weighs 6.15lbs, colder is denser, warmer is the opposite. Seen ranges online from 5.9lbs to 6.5lbs/gal.

The average street engine (safe tune) has Brake Specific Fuel Consumption of about .500. Assuming this, here is a formula to determine gallons per hour pump needed(must specify advertised gph WITH an operating PSI).

HP/BSFC , then divide that # by the weight of gallon of gas (most use 6lbs)= gph

(make sure that the advertised gph of a pump is listed with a psi operating pressure OTHERWISE the info is probably just freeflow with no restriction in the line, like letting it run and pour on the ground.) No pressure listed basically the gph is worthless info.

03dakrt
06-27-2008, 07:05 PM
good info.

Salarguy
06-27-2008, 08:33 PM
@60*F a gallon of gasoline weighs 6.15lbs, colder is denser, warmer is the opposite. Seen ranges online from 5.9lbs to 6.5lbs/gal.

The average street engine (safe tune) has Brake Specific Fuel Consumption of about .500. Assuming this, here is a formula to determine gallons per hour pump needed(must specify advertised gph WITH an operating PSI).

HP/BSFC , then divide that # by the weight of gallon of gas (most use 6lbs)= gph

(make sure that the advertised gph of a pump is listed with a psi operating pressure OTHERWISE the info is probably just freeflow with no restriction in the line, like letting it run and pour on the ground.) No pressure listed basically the gph is worthless info.

255LPH intank through #6 line to the rails will handle 450hp at the crank w/24s.