misterstyx69

iTrader: (142)

I decided to use a Carbed engine so I am seeking suggestions on how to accomplish this on an FC.
I need to get some idea on a fuel pump setup and how much pressure to run.
The engine has a edelbrock 4 barrel carb on it (302 ford engine/t5 trans).
Hopefully I can use the stock gas line routing and just eliminate the in tank pump.

Guys?....got any suggestions?

Thanks man.
STYX.

mach.80

iTrader: (2)

Not an exact match up but I used the stock fuel pump on my Weber 48mm turbo'd setup.
The only difference in the stock fuel system was a fuel pressure regulator in between the
carb and the return line. I ran 6psi and hooked up a boost/vacuum line to the FPR which raised
fuel pressure 1 psi of fuel pressure per lb of boost. Fuel pumps run a much greater flow at low pressures, thus the reason you can get away with a smallish pump.
In my case I ran 299whp on a mustang dyno.

In your case, I'd run any brand you like 190-255lph drop in fuel pump, and a FPR. No need to hook up
the vacuum line

misterstyx69

iTrader: (142)

From what I gather,I can run a Holley Red (or Blue) with a pick up strainer instead of an electric in pump setup. (just replace the old pump with a hose and strainer,I guess).
Does this sound Ok?

I also noted in the research that the Holley pumps are noisy and need some extra isolation mounting (like rubber mount).

Oh,my front engine cover shows a block off plate on the driver's side near the oil filter?
is that where they had a mechanical pump?
My other EFI'd engine has that same cover and plate setup.

I hate this..heh..as I have been submerged in Rotaries for so long I lost touch with actual piston engines!

yr6

iTrader: (1)

I had a 5.0 in a miata. I had a holley blue and red quit on me. I went with an edelbrock fuel pump and had zero issues.

valley

iTrader: (1)

Get a good FPR designed for a carb (i.e. really low output pressure). Use stock pump.

misterstyx69

iTrader: (142)

I can't see good things happening with holding back a Pump that can put out say 100 psi and knocking it down to 7 Psi.

valley

iTrader: (1)

It isn't holding it back at all. It's closer to letting if free flow. The biggest issue is that if you have too strong a pump (mass flow) then you'll eventually warm up the fuel.

misterstyx69

iTrader: (142)

update: put in a LP pump in the tank.
it slipped right onto the assembly.

Freeskier7791

That works, any particular reason you are going carbed?

misterstyx69

iTrader: (142)

Ya..because I am too freakin old to sit and decypher Wiring Diagrams.

ECU..I think it stands for Extremely Complicated Unit.

Carbed...gas in..pedal down..bye,bye..

misterstyx69

iTrader: (142)

UPDATE:
It seems that the Stock wiring does not get power to the pump as I had Start and stall out issues.
After getting a Regulator and gauge I find ZERO pressure,so I accessed the pump wiring and powered the pump..YAY!..I got pressure and the car starts and continues to run,as before it would start but shut down due to lack of fuel obviously.;
I wired the pump to the Ignition and tossed a Relay on it.
Along with doing that I also installed a "fuel kill" switch in the center armrest console that will shut power to the pump when the Car is on.
I did this as a safety measure so IF the car was left in Run mode but not running, that the pump would not be running.

The E-Fan was also wired up with a alternative switch to activate the Fan even if the sensor fails.Since the fan activates by a relay to ground it was easy to wire up.
I took a wire from the top of the thermo switch and ran it to the toggle switch inside the car and then out of the switch to ground.
So when the switch is activated the fan runs.When the switch is not activated the E-fan relies on the Thermo switch.
So really I got double coverage.

swampdog

I just used the stock pump with a fuel regulator, set it at 6 PSI with a return line ,works very well