Second fuel pump on different regulator?
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Joined: Apr 2014
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From: IL
Second fuel pump on different regulator?
I have my oem pump on a boost a pump and also installed a ECS Stage 1 add on pump that has the bulkhead on the side of the tank and also feeds into the same oem line but only kicks on at about 5 psi. I was told that with my returnless setup (04 Supercharged C5), that the fuel pressure would spike eventually due to the second pump not having a pressure regulator and it not being a return style setup...
What if I use an oem style GM filter / retun regulator combo on the second pump or even just an aftermarket regulator (the bulkhead has a return port that is capped btw)? Will this stabilize the fuel pressure during tuning? This is just until I am able to go full returnless eventually and upgrade the entire tank setup...
What if I use an oem style GM filter / retun regulator combo on the second pump or even just an aftermarket regulator (the bulkhead has a return port that is capped btw)? Will this stabilize the fuel pressure during tuning? This is just until I am able to go full returnless eventually and upgrade the entire tank setup...
Burning Brakes
Joined: Sep 2013
Posts: 1,160
Likes: 171
I have my oem pump on a boost a pump and also installed a ECS Stage 1 add on pump that has the bulkhead on the side of the tank and also feeds into the same oem line but only kicks on at about 5 psi. I was told that with my returnless setup (04 Supercharged C5), that the fuel pressure would spike eventually due to the second pump not having a pressure regulator and it not being a return style setup...
What if I use an oem style GM filter / retun regulator combo on the second pump or even just an aftermarket regulator (the bulkhead has a return port that is capped btw)? Will this stabilize the fuel pressure during tuning? This is just until I am able to go full returnless eventually and upgrade the entire tank setup...
What if I use an oem style GM filter / retun regulator combo on the second pump or even just an aftermarket regulator (the bulkhead has a return port that is capped btw)? Will this stabilize the fuel pressure during tuning? This is just until I am able to go full returnless eventually and upgrade the entire tank setup...
Burning Brakes
Joined: Sep 2013
Posts: 1,160
Likes: 171
I mean I ran a modded stock bucket with a 450 and pressure was higher. More fuel isn't necessarily a bad thing, especially with a FI. Lets say your pressure spikes at wot for 10 seconds during a pull. Does it really matter? That only means you arent going to run out of fuel.
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Joined: Apr 2014
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