put a charger on the battery and the car turned over fine, but still no pump. called my dad and he brought our trailer and took the car home. I tried to start the car and the battery was low and wouldn't turn the engine fast enough to start it. Well, on my way home the car quit because the pump locked up. The pump started to sound terrible, others on the forum mentioned that there pumps were pretty loud too so I figured it was ok. I finished up a few things on the car over the week and took it out for a drive yesterday. I got a prostar 500, put it on last weekend and got the car running. So you also need to check out the graphs and specs for a MagnaFuel regulator.Ok I bought a magnafuel pump because the are supposed to be for sustained use and I drive my car on the street some. Note that this flow number is what your engine needs at the float bowls. Check the graph and specification information for a pump selection for your application. Dividing by 60 (minutes per hour) yields.847 gal/min (GPM). 650hp x.5 = 325 lbs/hr.Īlthough you need to know how much your fuel weighs, assume for this example that it weighs 6.2 lbs/gal. Use.7 lbs/hp-hr when planning a gasoline system for nitrous assist. Methanol alcohol requires about 1.0 lbs/hp-hr. How can you plan your racing fuel system? Use a handheld calculator and plan on.5 lbs/hp-hr. Higher fuel pressure will generate more foam in the float bowl. MagnaFuel regulators need to be adjusted to 6.5 to 7.5 psi WITH FUEL FLOWING at a rate of about ½ cc per second (that's about 10 drops per second). Magnafuel prostar 500 installation instructions series#The QuickStar 275 series pumps are factory preset to 18 psi (these units are not field adjustable). The MagnaFuel QuickStar 300 Series pumps are factory set to 25 psi and field adjustable from 25 to 36 psi. They are field adjustable from 24 to 36 psi. MagnaFuel ProStar 500 Series pumps are factory set to 28 to 30 psi. The system pressure of at least 8 to 10 psi per g is generally adequate. How much fuel pressure is necessary? First, the fuel system pressure (provided by the fuel pump) must be enough to oppose the effects of gravity during the launch and during the run for drag racers. The additional fuel requirements for nitrous system planning is about.7 lb/hp-hr. This is most difficult with drag racing vehicles that sometimes have forward acceleration and wheel stand at the same time.Įach time that a nitrous system is engaged, additional fuel supply demands must be met or melted parts may result from 'system lean-out.' The fuel required is in excess of the.5 lb/hp-hr. This is a general statement and sometimes engines can be a little more efficient than.5lb/hp-hr., but it is a good practice to plan and measure fuel system operation using this number.Ĭarburetors must have a stable supply of fuel in order to maintain the correct liquid fuel height. What this means is that for each horsepower produced, it takes ½ pound of fuel. Magnafuel prostar 500 installation instructions free#This is sometimes called BSFC (Brake Specific Fuel Consumption).įind MagnaFuel ProStar 500 Fuel Pumps MP-4401 and get Free Shipping on Orders Over $99 at Summit Racing! Used by Warren and Kurt Johnson, MagnaFuel ProStar 500 fuel pumps are built with computer-machined aluminum bodies. Most engines that are using gasoline burn approximately.5 pounds per horsepower-hour. How much fuel flow is enough? The correct volume of fuel is that which is required to support the amount of horsepower that the engine can produce.
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