Boost referenced FPR
09-24-2017, 06:41 PM
#21
Originally Posted by 3 window
Kinda wanted him to explain it, but some ecus reduce voltage to the pumps at low demand conditions. What about systems that maintain constant voltage to the pump(s)? What about return style regulators? Don't tell me that the outlet pressure of the pump changes (hence reducing the workload) because you have a vacuum line to the regulator. You know better than that.
09-24-2017, 08:10 PM
#24
Kinda wanted him to explain it, but some ecus reduce voltage to the pumps at low demand conditions. What about systems that maintain constant voltage to the pump(s)? What about return style regulators? Don't tell me that the outlet pressure of the pump changes (hence reducing the workload) because you have a vacuum line to the regulator. You know better than that.
Fuel pumps generate more heat when the pressure output is higher. Using a low pressure for a daily driver keeps the heat out of the fuel, and may help extend pump life (marginally).
I think most regulators are "return style" except in carb'd applications. The "vette" regulator has a return line, its just under the car where you dont see it. The return is how the regulator regulates; if you clamp it shut the pump will work at max output pressure, will draw max current, and flow the least amount possible when met with an infinite resistance (zero flow if there is nowhere to go) despite having an incredibly high pressure. The reverse is also true- an unrestricted pump output flow will have 0.0001psi of pressure (some tiny number, must be positive, otherwise it wouldn't flow at all) and would draw minimal current, flowing the maximum possible rate.
I was also curious enough to shoot aeromotive an email:
Originally Posted by aeromotive tech director
All testing on Aeromotive fuel pumps for durability is done at 60-PSI. We typically see 2,000 run hours from a 340 Stealth Pump at 60-PSI and 13.5 volts. That said, lower pressure and/or slower speed can extend pump life, but you would need to change injectors (possibly) and retune the ECU (certainly) if you plan to run lower pressure.
Him:
Originally Posted by aeromotive tech director
don’t have any hard data to answer that question, maybe a 10% increase?
Brett Clow
Tech Director
Brett Clow
Tech Director
The same thing goes for the pump in your chest, lower blood pressure generally = longer pump life.
Its a free mod. If this was somehow hard to setup I would be like KISS and dont touch it. But its so easy to turn the allen key to the left and I have to re-tune everything anyways when doing a swap so... no extra work required. I set base pressure approx 37psi (instead of the usual 44psi).
Last edited by kingtal0n; 09-24-2017 at 08:15 PM.
09-25-2017, 08:00 AM
#26
Aeromotive? can't trust them with fuel system stuff, they have no clue what they are doing and only recently got into the fuel system business. Just turrible.
Yeah everybody with aeromotive stuff should just throw it away. obv garbage.
Until they make a pump with 2000(10) = 20,000 run time hours its trash right?
Yeah everybody with aeromotive stuff should just throw it away. obv garbage.
Until they make a pump with 2000(10) = 20,000 run time hours its trash right?
09-25-2017, 08:55 AM
#27
9 Second Club
Aeromotive? can't trust them with fuel system stuff, they have no clue what they are doing and only recently got into the fuel system business. Just turrible.
Yeah everybody with aeromotive stuff should just throw it away. obv garbage.
Until they make a pump with 2000(10) = 20,000 run time hours its trash right?
Yeah everybody with aeromotive stuff should just throw it away. obv garbage.
Until they make a pump with 2000(10) = 20,000 run time hours its trash right?
09-25-2017, 01:21 PM
#28
Also I carry a spare GT-R fuel pump which is a $17 used GT-R pull out OEM part.
