FordNut
12-20-2005, 09:05 PM
Working on the next step of my fuel system upgrade...
Up to now, I've got the twin Cobra pumps, larger (old style) fuel filter, straight fuel filter fittings, and just got the BAP installed. Had the BAP installed between the inertia switch and the FPDM based on advice from KB tech support. Also ran a new 10 AWG wire from the fuse block to a relay to power up the BAP for minimal voltage drop.
Now I'm working on fuel rails. Ordered Marauder specific rails from CPR (they're the only source I found with the fuel pressure sensor on the passenger side) but found that one of them (pasenger side) pushed the injectors out too far. They claim it can't be a design flaw since they've sold many sets, so I went to a machine shop and had the tabs machined down 1/8", which leaves them about 1/8" thick. Should be thick enough. Then I had the anodizing stripped off and replaced with ceramic coating thermal barrier.
Next step was to find appropriate fuel line and fittings. The y-block came from Jeg's, the fittings from Russell and the hose from Aeromotive. Some of the parts are still on order. Everything is -8 AN (JIC) fittings in the bright stainless-appearing finish they call Endura. Ordered 2-90's, 1-straight, 1-120, and one F-F coupler to go along with the fittings that came with the rails and the y-block with integral fittings that I had already purchased. Only fitting left to round up is one for connecting the fuel pressure sensor for the Autometer gauge. Also ordered 3' of the Aeromotive braided stainless sheath on teflon hose. This assembly will connect to the OEM fuel fitting on the fuel line.
The FPDM goes out for upgrade next week so it can drive bigger fuel pumps if I need them in the future. Also going to upgrade the wiring from the FPDM to the pumps for less drop in the wires. Latest info on the 'stang forums is the upgraded FPDM/BAP can't drive twin Focus or Aviator pumps but it is adequate for twin Ford GT pumps, which are claimed to have more capacity than the twin Cobra pumps. I'll be ready for them IF they become necessary.
This should be adequate for over 700 rwhp. If I have to continue to upgrade, the next section will be to replace the fuel line from the fuel filter to the y-block with 1/2" hard stainless tubing. Of course, I'll leave the OEM hose installed just in case I have to convert to a return-style system but I'd like to avoid that. Yes, this still leaves a short section of smaller tubing in place, from the pumps/tank to the fuel filter, but we'll see how this works before committing to more upgrades.
Gonna get the braided hose and fittings so I can test fit everything on my spare engine before putting it on my car, pics will be posted then (prolly just after Christmas).
Up to now, I've got the twin Cobra pumps, larger (old style) fuel filter, straight fuel filter fittings, and just got the BAP installed. Had the BAP installed between the inertia switch and the FPDM based on advice from KB tech support. Also ran a new 10 AWG wire from the fuse block to a relay to power up the BAP for minimal voltage drop.
Now I'm working on fuel rails. Ordered Marauder specific rails from CPR (they're the only source I found with the fuel pressure sensor on the passenger side) but found that one of them (pasenger side) pushed the injectors out too far. They claim it can't be a design flaw since they've sold many sets, so I went to a machine shop and had the tabs machined down 1/8", which leaves them about 1/8" thick. Should be thick enough. Then I had the anodizing stripped off and replaced with ceramic coating thermal barrier.
Next step was to find appropriate fuel line and fittings. The y-block came from Jeg's, the fittings from Russell and the hose from Aeromotive. Some of the parts are still on order. Everything is -8 AN (JIC) fittings in the bright stainless-appearing finish they call Endura. Ordered 2-90's, 1-straight, 1-120, and one F-F coupler to go along with the fittings that came with the rails and the y-block with integral fittings that I had already purchased. Only fitting left to round up is one for connecting the fuel pressure sensor for the Autometer gauge. Also ordered 3' of the Aeromotive braided stainless sheath on teflon hose. This assembly will connect to the OEM fuel fitting on the fuel line.
The FPDM goes out for upgrade next week so it can drive bigger fuel pumps if I need them in the future. Also going to upgrade the wiring from the FPDM to the pumps for less drop in the wires. Latest info on the 'stang forums is the upgraded FPDM/BAP can't drive twin Focus or Aviator pumps but it is adequate for twin Ford GT pumps, which are claimed to have more capacity than the twin Cobra pumps. I'll be ready for them IF they become necessary.
This should be adequate for over 700 rwhp. If I have to continue to upgrade, the next section will be to replace the fuel line from the fuel filter to the y-block with 1/2" hard stainless tubing. Of course, I'll leave the OEM hose installed just in case I have to convert to a return-style system but I'd like to avoid that. Yes, this still leaves a short section of smaller tubing in place, from the pumps/tank to the fuel filter, but we'll see how this works before committing to more upgrades.
Gonna get the braided hose and fittings so I can test fit everything on my spare engine before putting it on my car, pics will be posted then (prolly just after Christmas).