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Fuel pump difference?

 
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Old 26 Jun 2012, 04:48 pm
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Default Fuel pump difference?

Since I'll be using the turbo injectors and rail on my new engine, should I be using the turbo fuel pump (they have 2 different part numbers)? Or should I use my old set up and just swap injectors? seems there is, what looks to be a pressure regulator on the turbo rail and it's also larger. I know the N/A pump has the regulator at the pump, is it the same with the turbo pump? The fuel line from the tank is the same size, are they just regulated different?

Thanks guys.
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Old 26 Jun 2012, 07:21 pm
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Default Re: Fuel pump difference?

Generally you want to match your fuel supply system to the injectors maximum fuel flow specification for engine safe operation throughout the RPM range. The fuel pump does not see the differences between Carburetor Normally Aspirated,Turbo Charged or Super Charger engine.
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Old 27 Jun 2012, 12:54 pm
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Default Re: Fuel pump difference?

My current system puts out 58psi (+/- 2psi), Is it the same for the turbo system?
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Old 27 Jun 2012, 03:22 pm
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Default Re: Fuel pump difference?

i do not have a turbo model, but i do have ALLDATA Online at my finger tips



alldata lists exactly the same for n/a and turbo models.

with my mustang volume is the issue, not pressure. we all swap out our 155lph fuel pumps for 255lph fuel pumps. if you can't supply the volume your pressure will drop under load(but you probably already know this)

a kenne bell boost-a-pump can increase your stock pump volume by 1-50% by turning a knob you mount in the cabin you can increase voltage to the pump all the way to 17.5v

i would ASSume you'll be fine. if not the boost-a-pump would be the easiest tried and true solution for keeping the pressure at 58psi with your injectors at 100% duty cycle
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Last edited by rob342; 27 Jun 2012 at 03:33 pm.
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Old 27 Jun 2012, 06:48 pm
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Default Re: Fuel pump difference?

Quote:
Originally Posted by rob342 View Post
i do not have a turbo model, but i do have ALLDATA Online at my finger tips



alldata lists exactly the same for n/a and turbo models.

with my mustang volume is the issue, not pressure. we all swap out our 155lph fuel pumps for 255lph fuel pumps. if you can't supply the volume your pressure will drop under load(but you probably already know this)

a kenne bell boost-a-pump can increase your stock pump volume by 1-50% by turning a knob you mount in the cabin you can increase voltage to the pump all the way to 17.5v

i would ASSume you'll be fine. if not the boost-a-pump would be the easiest tried and true solution for keeping the pressure at 58psi with your injectors at 100% duty cycle
Thanks Rob-

I'll get everything back together and test the system with the engine running, see what I get, if its not right I'll go your route with the "boost a pump" I'll report back as to the results.
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Old 28 Jun 2012, 06:49 am
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Default Re: Fuel pump difference?

get a Walbro 255 lph pump. they're around $90-110
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Old 28 Jun 2012, 12:46 pm
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Default Re: Fuel pump difference?

Quote:
Originally Posted by OurPTGT View Post
get a Walbro 255 lph pump. they're around $90-110
if you do this, make sure you get the gss340, not the gss307
Auto Performance Engineering - Walbro fuel pumps specs
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