fuel pressure problems.
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From: Norn Iron
So have you done the test as requested ?
The plumbing you have should work although it is not ideal, and the pumps are easily capable of more than 60psi.
You say the feed is -6....that really looks like a tiny -6 though.
If you are incapable of carrying out the simple test described, try clamping up the return line gently and see if pressure rises.
The plumbing you have should work although it is not ideal, and the pumps are easily capable of more than 60psi.
You say the feed is -6....that really looks like a tiny -6 though.
If you are incapable of carrying out the simple test described, try clamping up the return line gently and see if pressure rises.
9 Second Club
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From: Norn Iron
The in tank pumps have a pressure bypass too. They start dumping fuel over about 60psi. That's why their flow goes to **** after 60-70psi.
But it doesnt stop them actually making more than 60psi.
But it doesnt stop them actually making more than 60psi.
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So have you done the test as requested ?
The plumbing you have should work although it is not ideal, and the pumps are easily capable of more than 60psi.
You say the feed is -6....that really looks like a tiny -6 though.
If you are incapable of carrying out the simple test described, try clamping up the return line gently and see if pressure rises.
The plumbing you have should work although it is not ideal, and the pumps are easily capable of more than 60psi.
You say the feed is -6....that really looks like a tiny -6 though.
If you are incapable of carrying out the simple test described, try clamping up the return line gently and see if pressure rises.
with the car idling i disconnect the vacuum line from the regulator and it doesnt change. fuel pressure stays the same.
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pressure to the FPR
i changed the vacuum port to the front of the intake manifold after the throttle body and my base pressure with the line disconnected went from 50psi to 45psi.
i changed the vacuum port to the front of the intake manifold after the throttle body and my base pressure with the line disconnected went from 50psi to 45psi.
Last edited by a4ls2goat; Mar 11, 2013 at 05:12 PM.
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From: Norn Iron
OK....seeing as that gauge is going from 100 to 50psi...would you care to elaborate as to the exact problem ?
And why it is going to 100psi ???
Because the problem you have been describing about sitting at a constant 60psi, certainly is not reflected in that video. Something is very fucked up.
And why it is going to 100psi ???
Because the problem you have been describing about sitting at a constant 60psi, certainly is not reflected in that video. Something is very fucked up.
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OK....seeing as that gauge is going from 100 to 50psi...would you care to elaborate as to the exact problem ?
And why it is going to 100psi ???
Because the problem you have been describing about sitting at a constant 60psi, certainly is not reflected in that video. Something is very fucked up.
And why it is going to 100psi ???
Because the problem you have been describing about sitting at a constant 60psi, certainly is not reflected in that video. Something is very fucked up.
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From: Norn Iron
Jesus...how much pressure did you pump into it ? Did you hook it straight up to a compressor or something ? I meant a few psi lol
If base pressure with vac disconnected is 50psi, with vac connected and the engine idling, it should drop to around 42/43psi.
That seems to be the opposite of what you said though ?
Either way, as fuel pressure rises with boost, the actual installation, pumps, reg etc are all proven to do what they are supposed to do.
If base pressure with vac disconnected is 50psi, with vac connected and the engine idling, it should drop to around 42/43psi.
That seems to be the opposite of what you said though ?
Either way, as fuel pressure rises with boost, the actual installation, pumps, reg etc are all proven to do what they are supposed to do.
Im not parts genius, or claim to understand things ive not taken apart, but the the regulator that Skinnies uses, the setup you are trying to emulate is a straight through design, inlet -> Outlet with the return between them. Your regultor, both the side ports are inlet with the return where you have it.
I cannot help but think its not designed to work the same way as the other that is supposed to be straight through design. Just seems like if it could work that way, the literature would say so.
The magnafuel document says that your regulator has 2 inlets, meaning that fuel is supposed to come into the regulator from both ports, or block one off, (placing the regulator in series at the end of the rail.
are they the same inside? I dont know, will yours work the same way as the one that is designed to be straight through? I dont know, but i cannot help but think, NO.
Thats why i posted those document links for you. SO you could see they are two different things, and then directed you to a post that uses a regulator like yours, like everyone else runs, at the end of the system or splits the two rails into it.
again, Disclosure, i dont know, but just makes sense in my head that they are different.
I cannot help but think its not designed to work the same way as the other that is supposed to be straight through design. Just seems like if it could work that way, the literature would say so.
The magnafuel document says that your regulator has 2 inlets, meaning that fuel is supposed to come into the regulator from both ports, or block one off, (placing the regulator in series at the end of the rail.
are they the same inside? I dont know, will yours work the same way as the one that is designed to be straight through? I dont know, but i cannot help but think, NO.
Thats why i posted those document links for you. SO you could see they are two different things, and then directed you to a post that uses a regulator like yours, like everyone else runs, at the end of the system or splits the two rails into it.
again, Disclosure, i dont know, but just makes sense in my head that they are different.
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Im not parts genius, or claim to understand things ive not taken apart, but the the regulator that Skinnies uses, the setup you are trying to emulate is a straight through design, inlet -> Outlet with the return between them. Your regultor, both the side ports are inlet with the return where you have it.
I cannot help but think its not designed to work the same way as the other that is supposed to be straight through design. Just seems like if it could work that way, the literature would say so.
The magnafuel document says that your regulator has 2 inlets, meaning that fuel is supposed to come into the regulator from both ports, or block one off, (placing the regulator in series at the end of the rail.
are they the same inside? I dont know, will yours work the same way as the one that is designed to be straight through? I dont know, but i cannot help but think, NO.
Thats why i posted those document links for you. SO you could see they are two different things, and then directed you to a post that uses a regulator like yours, like everyone else runs, at the end of the system or splits the two rails into it.
again, Disclosure, i dont know, but just makes sense in my head that they are different.
I cannot help but think its not designed to work the same way as the other that is supposed to be straight through design. Just seems like if it could work that way, the literature would say so.
The magnafuel document says that your regulator has 2 inlets, meaning that fuel is supposed to come into the regulator from both ports, or block one off, (placing the regulator in series at the end of the rail.
are they the same inside? I dont know, will yours work the same way as the one that is designed to be straight through? I dont know, but i cannot help but think, NO.
Thats why i posted those document links for you. SO you could see they are two different things, and then directed you to a post that uses a regulator like yours, like everyone else runs, at the end of the system or splits the two rails into it.
again, Disclosure, i dont know, but just makes sense in my head that they are different.
actually makes perfect sense now when i think about it.
i wonder if i could do it with the stock rails.?
Last edited by a4ls2goat; Mar 11, 2013 at 08:36 PM.
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so, i changed my regulator from where it was at .
i ran my feed line to the rail, than from the -4 on the stock rail i ran it to the regulator, capped the other inlet and ran the return back to the tank.
still no change.
i ran my feed line to the rail, than from the -4 on the stock rail i ran it to the regulator, capped the other inlet and ran the return back to the tank.
still no change.