yeah the regulator that's on there will have 58-60 psi with zero vacuum and will rise approximately a 1:1 ratio with boost so with 10 psi you should have 68-70 psi fuel pressure and so on. so at zero vacuum the 60's will be like 72's and yes the return style set up will push the 60's further than the returnless style.


you don't have to put in a check valve because the walbro has a check valve already.

 

so the stock reg will take me to say 900rwhp?

 

4.8T what did you do as far as your fuel lines and bucket?

 

Sweet! One of the reasons I've been holding off converting to a dual pump/return system because I thought I need a check valve.

Do you have the "y" right after the tank or do you run dual lines to the fuel rails and "y" at that point?

Thanks, Rick

 

I have after market had to make my own brackets and i wouldnt trust the stock rail for anything with serious horsepower IMO. BTW i have over 3k in the fuel system these An fitting and what not are very pricey

 

my Y is in the bucket. mine is a T because i couldn't get a Y at the time and i needed it done. it works fine. i will probably change it later but its good for now. here is what i did. i want it to work like stock and be an easy install. so i left the stock pump where its at didn't touch it. i left the bucket alone didn't touch it either. the filter that is in conected to the bucket is what also has the regulator. i cut the top off of the filter case. pulled the guts out and drilled a hole in the bottom. CAREFULL it will break. so i stuffed the pump inside the filter case put on the filter pad for the pump. then i Tee'd it into the stock pump feed. but since this one flows more i put the striaght part of the tee inline with the new pump and the feed line then the tee part goes to stock pump. then i clicked the filter bucket piece back onto the bucket and installed everything back together. then i drilled a hole in the top of the bucket and put a bulk head fitting with a hose going into bucket to help keep it full. then just attach return line to bulk head fitting.

 

I welded some aluminum angle on some FAST rails and bolted them on.
They work great and flow more than any stock tube fuel system will.
They were easy to make too.

A good flowing fuel system is needed if you plan on making lots of power.

This setup here will support 1000hp.

Here's a pic of them mounted, that's the best one I have.

 

why did parish make over 1000hp with stock rails?

 

by spraying METH.

 

i like your set up..i see the return out of the bottom of the FPR and i see the lines off each side going to the new fuel rails. but i see two new black lines coming from the back of the motor i know that one is from the pumps i think.. what is it for and were do they go.

NM i guess you Y off to feed one to each fuel rail and then it goes returns to the FPR and then to back to the tank. right??

thanks for all the pic and help