Faelflora breaks his promise, time to part out car. GIT THE SAWZALL!
#682
And the build goes on...started accumulating fuel system parts. In the pictures, a weldon 2040 rising rate fuel pressure regulator. A comparo shot, our stock fuel pump compared to a bosch 044. Fuel supply fittings on the gas tank top plate.
The huge physical size difference between stock and Bosch 044
The huge physical size difference between stock and Bosch 044
Since I got the car running I went gravity feed with supply to the pump which has caused the pump to run quieter.
Last edited by hingstonwm; 03-11-2011 at 01:11 PM.
#683
I'll look up the part number for the FPR later but aeromotive only makes 3 or 4 different ones. I am not positive it is the fuel but it seems to be. I am wondering if you pump was giving up and that is what gives you the up and down dyno. I would put the 300 in there with the FPR and run it again if it doesn't work get a mani and turbo somewhere there is a restriction I am leaning more towards the turbo side of things than fuel but the fuel side is a lot cheaper and what you want to do you need it anyway.
#684
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I've got a Fuelab 54501 in my engine bay.
-Smaller than the Aeromotive
-Available in 2 or 3-port config
-25-90psi base pressure adjustment
-Uses standard -6AN unions, not expensive-*** ORB fittings
-Cheaper than the Aeromotive
www.fuelab.com
I can get them as well. Faefoolish, you should be converting that car to return anyway.
-Smaller than the Aeromotive
-Available in 2 or 3-port config
-25-90psi base pressure adjustment
-Uses standard -6AN unions, not expensive-*** ORB fittings
-Cheaper than the Aeromotive
www.fuelab.com
I can get them as well. Faefoolish, you should be converting that car to return anyway.
#686
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Adventure time!
I guess setting up a fuel system for a 400 (hopefully more) hp car is like setting up an aquarium pump.
stick filter on the hose
stick hose in the juice
stick pump on the hose
stick another hose in the pump
stick filter on the second hose
stick hose into regulator
stick regulator hose into rail
stick rail hose into regulator
stick return regulator into juice
#692
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Here is a very poor picture but you will get the idea. The fuel line come out of the tank threw the filter and into the pump.( you can also do this with an in tank pump and filer) out of the pump and to the fuel rail, threw the fuel rail and threw the FPR, out the FPR and back to the tank. This is about as simple as a drawing you will get but this should give you the idea. The stock NB does not have the return line to the tank it just has the feed.
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#694
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Yes you can but some people do not like to do that. We just put together a LS1 s-0 where the FPR is mounted right next to the tank and only one line runs up but it tends to make for uneven fuel pressure over a long distance like that.
#695
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You can also use the hard aluminum AN line summit sells for something like $25 for 20 feet it works great it is what is on my car and it is simple to use. Hold the pressure like any other line just easier to bend.
#697
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Here is a very poor picture but you will get the idea. The fuel line come out of the tank threw the filter and into the pump.( you can also do this with an in tank pump and filer) out of the pump and to the fuel rail, threw the fuel rail and threw the FPR, out the FPR and back to the tank. This is about as simple as a drawing you will get but this should give you the idea. The stock NB does not have the return line to the tank it just has the feed.
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#698
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Well I just went out for a drive and the car almost drives great. 8000RPM with 3.6 gears makes for a first gear that lasts longer than 1 second. fun. Some of the time on the dyno yesterday was spent on the vvt map and it's hitting hard.
I was however, seeing some OCCASIONAL fucked up lean AFRs at 21-23psi and some spikes on the knock sensor. I am not sure if it is misfiring coils or detonation. My gut is saying detonation due to fuel pump dying a slow death or just being at the upper limit of it's capabilities? I think I will just lower the boost until I fix this. I ordered a fuel filter just in case that is an issue and will get the rest of the stuff tomorrow.
I'm considering these fuel fittings and using the fuel tank vent as a return line:
I was however, seeing some OCCASIONAL fucked up lean AFRs at 21-23psi and some spikes on the knock sensor. I am not sure if it is misfiring coils or detonation. My gut is saying detonation due to fuel pump dying a slow death or just being at the upper limit of it's capabilities? I think I will just lower the boost until I fix this. I ordered a fuel filter just in case that is an issue and will get the rest of the stuff tomorrow.
I'm considering these fuel fittings and using the fuel tank vent as a return line: