Fuel lines - Ford Powerstroke Diesel Forum
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post #1 of 8 Old 07-27-2013, 11:15 PM Thread Starter
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Fuel lines

So after the fuels passed through the filter on top if the engine in my 96psd, the fuel lines go into the cylinder heads via two ports. One on the drivers side of the motor the the front of the engine and one the the passenger side in the rear. They both thread out and have 4 1/8th in holes and I've heard drilling them out to 1/4in substantially improves flow and I was wondering if anyone has done this? I saw a video in it for a 99-03 7.3 and was thinking it'd be good for an obs too but I'd like to double check on here. Thanks for your help

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post #2 of 8 Old 07-28-2013, 02:54 PM Thread Starter
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bump bump bump

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post #3 of 8 Old 07-28-2013, 09:06 PM Thread Starter
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Well I ended up doing it. Between that and my FPR shim I did the other day, the results are incredible. Can't believe I haven't heard anyone talk about this before.

Here's before on the right and after on the left

And my FPR shim and gauge

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post #4 of 8 Old 07-28-2013, 09:13 PM
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What results are incredible? Were you starved with fuel before?

05 F350 Crewcab
98 Jeep TJ - wheeler
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post #5 of 8 Old 07-29-2013, 03:07 AM
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U need to watch for breaking the bolts off now... u can buy them already done and i think are an upgraded strength bolt to reduce the risk of snapping them

FRANK THE TANK
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post #6 of 8 Old 08-02-2013, 06:53 PM
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Tell us more on what difference drilling the holes out made please.

Where are they removed from on the truck?

I am original owner of 97 Extended Cab 4x4 with 86,000 miles, Unlimited Diesel 175/30 Stage 1.5 Injectors, ATS Intercooler, Tony Wildman 6 Position Chip, 4" Turbo Back Diamond Eye Exhaust, Stealth SPR1 HPOP, Wicked Wheel 2, Hypermax Combo Boost/EGT Gauge, DIY Intake, FPR Mod, CCV Mod, IDM Mod, 203 degree T Stat, Stainless Steel High Pressure Crossover Line, Fitch Fuel Catalyst, 40,000 lb. Trucool Max Transmission Cooler. Next up a Bean's D-66, electric fuel, torque converter and a valve body.
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post #7 of 8 Old 08-06-2013, 11:57 AM
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I don't remember there being any banjo bolts on either of my engines, just regular fittings for both feed and return lines on the heads.

And get that orange intake hose off there ASAP.

Jimmy
97 F-250 ECLB 7.3/E4OD/4wd, 216k miles: FFD 250/200%'s, stock turbo, built trans, e-fuel, Swamps IDM, shimmed 910's, Melling LPOP, welded cam gear/modified pick-up tube. Built and tuned by me

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post #8 of 8 Old 08-13-2013, 05:38 PM
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OP's description of fuel routing is not on a 1996. '96 feed the rear ports and returns from the front ports. sounds trollish.

banjos are the end plugs for the drilling that runs the length of the head to feed injectors and they are drilled to allow the the fuel coming down from the 1/8npt ports to enter the rail.

this pic has two DI direct feed fittings where the banjos would be
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1997 F250 rclb 4x4, Comp910s, SRP1.1, Irate T4 s468,FullForce 350/200, homebrew efuel with i̶n̶ ̶t̶a̶n̶k̶ ̶a̶e̶r̶o̶m̶o̶t̶i̶v̶e̶ ̶1̶1̶1̶4̶2̶ A1000 5/8" drawstraw, Diesel Innovations fuel rail feed fittings, balljoint D60f Detroit Locker, zf5 sachs K70263-01CB ceramic clutch , Grizzly locker 10.25, 315/75/16 Wrangler MT/Windowed 7.3 Oct 9/14
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