Nervous about my fuel system..
05-18-2010, 08:47 PM
#1
Nervous about my fuel system..
A fellow member questioned my fuel system and it has me thinking.
My truck has a return style fuel system.
To install the TVS 1900 i had to use NNBS fuel rails which are returnless.
To adapt my fuel system to the NNBS single fuel rail, I used the corvette style regulator, which has a supply and return in back, and outlet that attaches and feeds the NNBS fuel rail.
Now im running 5 PSI. All is good.
But when i run 10 PSI , will i be OK ?
Because the stock regulator is vaccum , the corvette style is not?
What is going to increae the PSI? Or is it fine as is ?
See what im getting at??
I just hope the way its plumbed is OK, im gettin tired of modifying! But want to be safe.
Going to be installing a Walbro 255lph next couple days.
Sorry , not the best picture of my reg setup.
My truck has a return style fuel system.
To install the TVS 1900 i had to use NNBS fuel rails which are returnless.
To adapt my fuel system to the NNBS single fuel rail, I used the corvette style regulator, which has a supply and return in back, and outlet that attaches and feeds the NNBS fuel rail.
Now im running 5 PSI. All is good.
But when i run 10 PSI , will i be OK ?
Because the stock regulator is vaccum , the corvette style is not?
What is going to increae the PSI? Or is it fine as is ?
See what im getting at??
I just hope the way its plumbed is OK, im gettin tired of modifying! But want to be safe.
Going to be installing a Walbro 255lph next couple days.
Sorry , not the best picture of my reg setup.
05-19-2010, 05:02 AM
#6
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Just make sure your tune (ifr table) is set up like a returnless system. The return style system has the ifr table set in a flat line, and returnless has the ifr table set up in a curve.
............................................I think that's right?!
............................................I think that's right?!
05-19-2010, 05:34 PM
#7
I checked fuel psi today after i got a guage.
At Idle psi was 70! (this is with stock pump, have a bigger one on the way)
At wot the needle bounced between 45 and 65, couldnt get a god reading as the needle really moved all the hell over the place.
The corvette reg i have is spose to let 60psi to the rail,
so SDPC is sending me a new one.
Now im wandering if i need a vacuum refenced type of reg to go with my return style system??
Man just when i thought every thing was going good.
At Idle psi was 70! (this is with stock pump, have a bigger one on the way)
At wot the needle bounced between 45 and 65, couldnt get a god reading as the needle really moved all the hell over the place.
The corvette reg i have is spose to let 60psi to the rail,
so SDPC is sending me a new one.
Now im wandering if i need a vacuum refenced type of reg to go with my return style system??
Man just when i thought every thing was going good.
