No fuel at rails

[NITROUS]

Tried to fire it off tonight with no luck. I have spark but no fuel past the regulator in the rail. The rail is a 97 vette style with fuel return. The only thing I can figure is the regulator is bad because there is nothing to bleed out from the schrader valve on the driver side rail. I did have air in the line up to the regulator but was able to purge that out with no problem and have fuel to that point. What do you guys think?

[RedHeartbeat]

You paid all that money and it don't work?

J/K.

Did you check the fuel pressure at the fuel line? Are you sure you have enough pressure to get past the regulator?

[RedHeartbeat]

<div class='quotetop'>QUOTE(RedHeartbeat &#064; Apr 27 2006, 10&#58;25 PM) [snapback]51490[/snapback]</div>

You paid all that money and it don&#39;t work?

J/K.

Did you check the fuel pressure at the fuel line? Are you sure you have enough pressure to get past the regulator?
[/b]

Now explain to me how this is supposed to work, fuel pressure to a regulator, then to injectors, then return to the tank? Shouldn&#39;t it be fuel pump to rail, to injectors, to regulator, excess back to tank. Are you sure you don&#39;t have the fuel lines reversed?

[motoxlifer]

I thought it was supposed to be pressure to the regulator excess back to the tank and regulated pressure to the injecters. Because my filter is the regulated vette filter & it has the inlet & return on the same side & only one outlet. So fuel can&#39;t go to the rail & come back to the filter right?

[NITROUS]

motoxlifer is correct. That is how I&#39;m set up, fuel to regulator and excess back to tank. Ya, I paid all that money and still problems&#33;&#33;&#33;&#33; The fuel regulator doesn&#39;t work and now one of the damn header tubes hit a plug wire&#33;&#33;&#33; I pretty much lost it last night&#33; If I try to reverse the lines, they won&#39;t fit the coil covers right. I would have the return line going through the notch in the cover. I might reverse them for the hell of it just to see what happens but I wen&#39;t by their instructions. I know what your fixing to say Greg&#33; Don&#39;t go there&#33;&#33; LMAO Wait until S&P gets my phone call this morning. I&#39;ve sent them pics and showed them exactly what to do and they&#39;ve missed it every time&#33; I&#39;m leaving this header on just to crank it up and drive it for a couple of day&#39;s but they&#39;re gonna have to send me another header. I think I&#39;ll build my own headers next time&#33;&#33;

[RedHeartbeat]

I don&#39;t understand something here, why do they put a regulator on the fuel rail in the Corvette when the fuel filter actually has the regulator built into it? I understand how a pressure sensitive regulator can bleed of excess pressure but how can a regulator restrict flow when excess pressure hits it? I&#39;d be interested in seeing that design. The first one sounds much simpler to explain. A passive regulator with a return line is a simple concept. The one on our returnless newer rails is confusing.

What truly confuses me is how your&#39;s would work. You get high pressure to the regulator, it passes it and goes into the fuel rail. The fuel rail is setup with a return line with no restriction to the tank. Fuel runs through the rail and back into the tank. When does it have an opportunity to build pressure for the injectors? In the line before the regulator? Hmmm....no injectors back there.

[kwkenuf]

<div class='quotetop'>QUOTE(RedHeartbeat &#064; Apr 28 2006, 06&#58;18 AM) [snapback]51515[/snapback]</div>

I don&#39;t understand something here, why do they put a regulator on the fuel rail in the Corvette when the fuel filter actually has the regulator built into it? I understand how a pressure sensitive regulator can bleed of excess pressure but how can a regulator restrict flow when excess pressure hits it? I&#39;d be interested in seeing that design. The first one sounds much simpler to explain. A passive regulator with a return line is a simple concept. The one on our returnless newer rails is confusing.

What truly confuses me is how your&#39;s would work. You get high pressure to the regulator, it passes it and goes into the fuel rail. The fuel rail is setup with a return line with no restriction to the tank. Fuel runs through the rail and back into the tank. When does it have an opportunity to build pressure for the injectors? In the line before the regulator? Hmmm....no injectors back there. [/b]

Works just like the truck setup. Excess fuel is bypassed at the rail mounted regulator and returns to the tank. The injectors only see regulated fuel pressure. The only difference in the systems is that the hi-pressure fuel travels a longer path before it hits a regulator. Same concept, just longer fuel lines......

[motoxlifer]

Het Nitrous just buy you a set of MSD wires. The boots are bendable so you can keep them off of the header. Hey Red I think the regulated fuel filter was only on the later model vettes. The 97 - 99 vettes had the regulator on the fuel rail only.

The 2000 & up vettes have the regulated filter and no regulator on the rail and no return line.

[GMCwantsLS1]

On the f-bodies the regulator is built into the tank on the return line.

[motoxlifer]

<div class='quotetop'>QUOTE(GMCwantsLS1 &#064; Apr 28 2006, 12&#58;26 PM) [snapback]51538[/snapback]</div>

On the f-bodies the regulator is built into the tank on the return line.
[/b]

Why would you want to regulate fuel pressure on the return line?