Hello,

Just curious if anyone is running dual walbros (2nd on a boost switch) but kept the in-tank regulator.

I'm in the process of doing a dual walbro (2nd on boost switch) return system, but just was curious.

Thanks!
-Mike

 

I would not suggest it. I am running a single 255 now, and am having problems. I think my problem is due to the fact that my regulator (aftermarket Aeromotive) is too far away from my fuel rails. My pressure is dropping from 58 PSI to 40 PSI and I am running a magnavolt to boot. I think the stock line is too restrictive if you are running a regulator off of the rail. I am going to move the regulator to see if this helps my problem. I will post the results for you if you wish.

 

Sure any info is new info!

 

Why do you want to run dual pump, are you having fuel problems? I am running the walbro that came with my kit and i am at 8psi with no issues.

 

Do you have a fuel pressure gauge?

My fuel pressure will drop on my current returnless system, so I am installing a return setup with rising rate FPR.

I could run how I am by fudging the PE and such, I have plenty of fuel, but I want it 'right'

-Mike

 

No i don't have a pressure gauge, what i have is a wideband to monitor fuel. I also had my truck dyno tuned, making all my tables just right.

 

Well I be you'd be very surprised how the fuel pressure actually drops.

I'm running several gauges and run a wideband as well. Like I said I could make it work and I'm sure the PE in your tune is slightly tweaked higher above 5500 or such.

I have a forged motor that I'm not taking any chances with, plus a return system has so many benefits as well.

 

Well I be you'd be very surprised how the fuel pressure actually drops.

I'm running several gauges and run a wideband as well. Like I said I could make it work and I'm sure the PE in your tune is slightly tweaked higher above 5500 or such.

I have a forged motor that I'm not taking any chances with, plus a return system has so many benefits as well.

 

Just noticed you have D1SC, don't know much about them but when i was looking into FI i read alot about fuel problems with procharger kits. If the pressure drop wasn't there before then something went bad.

 

I have had both a p-1sc-1 and d-1sc. When you go into boost and the injectors are staying open more than they close the pressure drops, especially with a dead head returnless system. Vortechs and other FI does this as well.

Put a gauge on your truck and report back. Most see 5-6psi drop for sure, but when you see 10+ the rails are draining and the pump can't keep up.....

There is no 'fuel problem', this thread was about guys running a dual walbro intank

I don't have a procharger kit, I have done everything myself.