Fuel setup

[SC_Titan]

I'm putting an LY6 6.0 with "returnless" fuel rail into an 86 C10

I want to use 87 tanks and senders but run aeromotive 340 stealth pumps.

I'm concerned the 340 pump will overpower a corvette filter/regulator.

Anybody encountered this or put an adj Regulator on a returnless fuel rail?

I want more than a 255 pump because i plan to use an LSA blower down the road and don't want to redo the fuel.

[BR3W CITY]

Originally Posted by SC_Titan

I'm putting an LY6 6.0 with "returnless" fuel rail into an 86 C10

I want to use 87 tanks and senders but run aeromotive 340 stealth pumps.

I'm concerned the 340 pump will overpower a corvette filter/regulator.

Anybody encountered this or put an adj Regulator on a returnless fuel rail?

I want more than a 255 pump because i plan to use an LSA blower down the road and don't want to redo the fuel.

Never seen a pump overpower a filter, since "power" in terms of the fuel system is pressure, and since the pressure is regulated, any "extra" incoming pressure would be returned. The 255lph pump most folks use puts out 90-100psi and is regulated down.

The potential problem with something like the larger aeromotive pumps is actual line sizing, because of volume. If your moving enough fuel to need to go larger than 3/8 feed, the standard 'vette reg would require a bunch of up-n-downsizing your line. This reduces the total flow of the fuel run, since each change in size is a restriction point and a possible site for fuel cavitation.
At that point you'd be better running the larger size feed all the way, and only have the single change in size at the rail.

[SC_Titan]

Thanks for the reply. I have found several instances where the corvette regulator could not keep the pressure down to ~58 psi when used with a larger 340lph (or bigger) pump.

If someone is using corvette reg/filter successfully with a 340 or larger I would like for them to speak up as this is a simpler less expensive setup.

[homemade87]

I am using a aeromotive pump aei-11569 on my 82. I am using the corvette filter . I have a steady 59 psi . This pump is 340 LPH and have no problems at all .

[dayj1]

I'm currently using a Walbro 400lph pump and 'vette regulator with no problems and, like homemade87, I've used an aeromotive 340lph pump with a 'vette regulator successfully.

[SC_Titan]

Awesome guys. Thanks for the info.