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Old 07-27-2013, 11:15 PM
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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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Old 07-28-2013, 02:54 PM
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bump bump bump
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Old 07-28-2013, 09:06 PM
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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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Old 07-28-2013, 09:13 PM
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What results are incredible? Were you starved with fuel before?
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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
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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?
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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.
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Old 08-13-2013, 05:38 PM
m j m j is offline
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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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Fuel lines-dibanjos.jpg  
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