THEMADTYPH00N
Active member
Has anyone ever tested to see how much power you can make before the stock fuel rail becomes too much of a restriction? I see alot of poeple that upgraded to nice looking billet ones, but was it really nessicary?
Stock Fuel Rail Limits?
- Thread starter THEMADTYPH00N
- Start date
Lynn D. Brown
New member
Fuel Rail
Fuel Rail
Just a guess, but it's not a major restriction. Should be able to handle at least 600-700 HP. U will need two pumps before U a new fuel rail. One way to get more out of it (or in, actually) if U go to dual pumps would be to braze in a 2nd inlet at the back Pass side. Conley put an AN connection in for me there while I had the rail out, so I'll be ready if and when I go w a 2nd pump. It's capped for now, of course.
Fuel Rail
Just a guess, but it's not a major restriction. Should be able to handle at least 600-700 HP. U will need two pumps before U a new fuel rail. One way to get more out of it (or in, actually) if U go to dual pumps would be to braze in a 2nd inlet at the back Pass side. Conley put an AN connection in for me there while I had the rail out, so I'll be ready if and when I go w a 2nd pump. It's capped for now, of course.
TurboTony
Active member
We have a few trucks running real low 11's and high 10's on a stock rail with twin pumps and a upgraded return line.
The calibration changed a whole bunch from a set of billet rails though. The large rails with twin feeds act like a big dampner when the injectors open. Nolan had to really increase the fueling over our trucks with custom billet rails.
If i had to do it again I'd stick with a stock rail and twin intanks. The only advantage I have with the sump and external is no sloch with low fuel on launch. Ty's don't seem to do that as much as sy's though.
Tony
The calibration changed a whole bunch from a set of billet rails though. The large rails with twin feeds act like a big dampner when the injectors open. Nolan had to really increase the fueling over our trucks with custom billet rails.
If i had to do it again I'd stick with a stock rail and twin intanks. The only advantage I have with the sump and external is no sloch with low fuel on launch. Ty's don't seem to do that as much as sy's though.
Tony
yeah if there's a gn around here running low 8's on stock rails in a 3500lb car, then you should be fine with yours. Im going to be pushing the limits here really soon on a mccoy engine with stock rails and will be trying my hardest to max out the ITS-76 turbo with the big ole weldon and 84's. 
later
Jordan
later
Jordan
THEMADTYPH00N
Active member
Anyone know what kind of a fitting you need to run AN line to the stock rail? The threads arent the same on the rail as are on an AN fitting. I've seen one such fitting in Jegs for TPI motors but it only let you run -6 line.
