Mike actually the up pipes aren't in the way of the banjo bolts. And yes you could pull banjo bolts to do injectors and I do believe some do and some guys don't pull them when installing injectors.

Robin I really don't think you would see an increase in fuel pressure but if there is any actual increase with this modd I would think it would be in gph of flow that you would see an increase. The only real experience I have with increasing size to fuel is in marine. And when going with going from a single carb to a blower with dual carb you need to go from 3/8 line to a 1/2 lines at 4-8psi. And you can NOT increase fuel pressure over 8psi due to the needle & seat in the carb. Because with a 3/8 line dual carbs at 4-8psi you get a lean condition. I know it is totally different in a 7.3 diesel but any increase in size will let you increase gph. So to truely test this modd I would love to see the #'s on gph of flow at wot.


This is a photo of the Early banjo bolt modded to 7/32. Now I have seen where guys go with 1/4" and I personally feel that size weakens the bolt shaft.


Also here is a photo of the two different style banjo bolts the 7.3 has. The modded bolt on the right is out of a Early99 and the unmodded bolt is out of a 02 courtesy of Larrythe handyman "Thanks Larry " Just incase you go to replace the oring there are 2 different orings. Bob/ Diesel Orings has both. Also I did end up modded the late model bolt too but you can only go about 5/32 without getting into the longer shank on the bolt and I felt it was a better modd.

Now I did this not because I am in search of huge hp#'s or because I thought I would see or feel any improvement but because I felt it can't hurt to make it easier for the fuel to get to the injectors. Besides I was replacing the orings anyways.

Now the Strickly Diesel banjo bolts have alot more going for them other than increasing flow. They are made out of SS and use a copper washers instead fo STUPID orings. 7.3L Banjo Bolt Kit

 

So I have a early 99 F250 power stroke 7.3 extra cab short bed ZF6 2wd , I have done everything from banks power elbow full 4 inch exhaust , no cat , monster muffler 5 inch tip, turbo blade , big head waste gate , bigger inner cooler , ram air intake, 6
position tuner,
new stage 2 clutch , and now I Drilled


 

‘Liked’ Robin’s last post here. I miss that guy!!!!

Upgraded banjo bolts are a silly idea that falls under the category ‘seems like a good idea’. Just replace them with stock and never have any trouble.

 

Like 90% of the "mods" out there. Most of the others have 3-letter abbreviations.