Upgrades and Aftermarket - 99 & up 7.3L EngineUpgrading or adding OEM or aftermarket equipment to your 1999-Up Super Duty or Excursion with 7.3L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
can you tie the two test ports which would be closest to the #1 cyclinder and the #8 Cylinder together, to allow even pressure to be at all the injectors? I am thinking that if you just tie them together so they can free flow through both rails the pressure would be the same across the board eliminating starvation problems?
well with a regulated return it just has a unit that is stand alond that can adjust the fuel pressure instead of the stocker, which can be changed with spring pressures, just want to get and equal amount of fuel to both sides and not starve any of the injectors.
There is a back door approach to this by tiying #5 cylinder and #6 cylinder together with High Pressure Crossover line. I used a stainless steel line from KCM Diesel Performance. It made a big difference in my engine, wish I had done it sooner. [img]/ubbthreads/images/graemlins/eek.gif[/img]
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2000 White F550 PSD CC, Cabriolet Body, Firestone Air-Ride Suspension, 33.8G Aux Fuel Tank, 3 Pod A-Pillar gauges. TTT mirrors, US Gear D-Celerator, Pre-Pump/In-Tank Mod with Racor 645R30, 203° T-Stat/Bullet Housing, Fleetrite ELC w/filter, SunCoast Tranny w/3 disk TC, Mag-Hytec tran pan, and 6.0 Tran cooler, AIS Air Filter, AIH Plug, CCV Mod, SS HPX, Zoo-Dad, Trailer Saver II Air Suspension Hitch, Brake Smart Controller. Towing a HitchHiker 35.5' LKTG Premier at 16,360#.
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There is a back door approach to this by tiying #5 cylinder and #6 cylinder together with High Pressure Crossover line. I used a stainless steel line from KCM Diesel Performance. It made a big difference in my engine, wish I had done it sooner. [img]/ubbthreads/images/graemlins/eek.gif[/img]
[/ QUOTE ]That impacts the high pressure oil system NOT the fuel system.
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2002 F350 Lariat CC 4x4 Auto 4.10 DRW, DP-Tuner F5 live tuned stock, quiet, 40dd, 40, 60, 80 tow, 80e and 120r, B&W GN, BrakeSmart, 'pooned tank, tank and pre-pump mods, 2µ Dahl 100 filter, regulated return, BTS dual HPOP, AC singles with EDM 34 lpm nozzles, AIS, H2e, Spearco 6.0 IC, Hypermax 3.5" dp--> MBRP 4" 304SS exhaust, BTS tranny, 203º T-stat, Chevron ELC, coolant filter, Oilguard bypass with Schaeffer 9000, WranglerNW 200 amp alternator & Optima group 31 batteries, Nippon-Denso starter, SPA gauges, SteveRacer mods, Hella 80/100W 9007s, Hella Micro DE foglights, 1000FF driving lights, 220W backup lights, Stancor contactor, Michelin XPS Traction tires, X-Springs, Bilstein shox, custom bumpers but otherwise stock. Nov 30 '99 build engine with 16 K miles, Fluidampr, Comp Cam 910 springs, Melling LPOP and ARP headstuds.
If you're talking about the fuel system DI and ITP sell systems that cure everthing from in tank to the fuel dead head / pressure concerns.
If you're talking about the hpo system a H/X or hpos crossover line is in order, most if not all of the sponsors carry them.
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maybe I just need to quit overthinking it.
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Yeah what he said. [img]/ubbthreads/images/graemlins/biggrin.gif[/img]....R
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2001 F-250 PSD SWB CC,3:73 Ls, 4R, PMT, AIS.
JJ's/HC.
Triple hpops,1000hp vaporware injectors, dual reg return with 1" feed to each head, triple sd fuel pumps, dos turbos + 1, triple 6647 air filters Quadruple disc T/C with elephant man transmission, 6 pos Moe betta chip stacked with banks 6 gun, edge ez and sooper chit tuner, cryo'ed PMR's fuzzy dice and a pine tree air freshener.
no no no, we are talkin about getting equal fuel to all injectors, ie connecting the the rails so their is no dead end in the system and the pressure is equal throughout, ie connecting 5-6 or 7-8 doesnt really matter out of those two.
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2001 F-250 PSD SWB CC,3:73 Ls, 4R, PMT, AIS.
JJ's/HC.
Triple hpops,1000hp vaporware injectors, dual reg return with 1" feed to each head, triple sd fuel pumps, dos turbos + 1, triple 6647 air filters Quadruple disc T/C with elephant man transmission, 6 pos Moe betta chip stacked with banks 6 gun, edge ez and sooper chit tuner, cryo'ed PMR's fuzzy dice and a pine tree air freshener.
actually it would be a line to the rear drivers side to the front passenger side. because the front drivers side is were it flows stock and rear passenger is flowed stock, I just like to see if I can get things to work, the truck already has a fuel pressure regulator on it and with some tinkering you can set it wherever you want, no big deal, now its getting the flow of fuel throughout the rails equal, and that is what I am trying to finger out, I just need to run a line from one side to the other so they dont dead end and wham, I got me a good lil fuel system? correct?
Why not just add a fuel line from the spare SAE style port near the bottom of the fuel bowl (near the 2 main exit fuel lines) to the rear port on the drivers side head. Seems like it would become an aftermarket bolt on by one of these companies to improve flow to the #8 starvation problem? I know it doesn't solve the air problem but it does solve the flow problem and may reduce/eliminate problems of the #8 incomplete fill noise. I know some guys have tried it, any luck?? Don't confuse the port on the fuel bowl near the top where we check fuel pressure that is unfiltered. Its the lower one I'm talking about.
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2000 F250 PSD Extended Cab 4X4 Shortbox A/T K&N DP-Tuner-F5 5 pos. stock,40,60,80,120 Tank to pump mod. In tank mod. Regulated return w/Aeromotive A-1000-6, Zoodad mod, Autometer triple pod gauges. New CPS at 61,200 miles. HP Oil X-Over line. 10 x 16 Mickey Thomson classic locks and 315 BFG AT KO Radials.
I would think you would want to that to both sides though. Making one head flow fuel different that the other head doesn't seem like a good idea.
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Master Certified Diesel Tech
1999 F-350 4 door long bed 4x4. 4in lift, deaver springs, fox shocks, dynomite injectors on the way, dp tuner F5, dual 7.3 fuel pumps, Spearco retrofit intercooler, custom regulator return kit, ceramic coated IH up pipes, 5in mitre cut stacks, custom front bumper. Terminator High Pressure Oil!
<font color="red">Black Widow Diesel exclusive Turbonetics Towing Compound turbo kit-In testing. More info available soon at www.BLACKWIDOWDIESEL.COM</font>
The front of the pass side head is a dead end. Ther rear of the drivers side head is a dead end. What are you hoping to gain by hooking two dead ends together?
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2000 F250 Lariat CC SB 4x4 PSD Auto
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