I am hoping Chad will chime in and share some knowledge on this.

How much power can my stock lines and rails support if I am using a set of 60lb injectors? I am trying to decide if its worth running lines for ~600awhp (or about 650rwhp on a dynojet). I have a stock motor so I don't want to turn the power up anymore than that.

To elaborate, my fuel system would consist of a stock 996 Turbo pump in the tank, a Bosch 044 Pump in line, and a set of 60lb injectors (with a standard 3.8bar FPR (though I have a 5bar also I could install)).

If I ran a fuel system I would use a -8an feed from the stock intank fuel pump to the 044 pump, then -6an to the stock rails modified with a -6an fitting.

Thank you all in advance for some quick replys.

 

Powell,


Here is a website that will help.

http://www.rceng.com/technical.aspx?...3aATMV7qyn1{36

Since the inside diameter of different manufacture's lines vary, it is best to ask the line manufacture what is the gallons per minute that the line will flow at a given pressure. You can convert gallons per hour to pounds per hour. The stock fuel rails will support your hp.

I do question the 60 pound injectors or 600 cc's. I figured you have approx. 724 flywheel hp. If that is correct 3.8 bar fuel pressure would require a 1016 cc injector. At 5 bar pressure a 727 cc's injector would be required. You have to remember that these figures are based on the fact injectors should not be run at more than 80% of their rated capacity. The 600 cc injector would work, but you are really overdriving the injector with 723 hp.

See what you can do. If you get stumped I will be glad to help.

 

Thank you for the advice! I am going to do some more research on the different lines. From what I've been told now and verified by you is that the Rails are going to be fine, so all I will need to do is weld a set of -an fitting to the rails so I can route the -an lines to them.

I've heard that a 5bar FPR on a Siemens 60lb Injector can actually cause harm on the injector, but I don't know how true that is.