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high pressure oil bypass modification

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Old Jul 25, 2008 | 01:53 PM
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high pressure oil bypass modification

I just read about it in the newest diesel world magazine, toward the back of the mag. I forget the name of the performance shop, but they make a hose with screw in adaptors that screw into the head to connect the new oil hose to. Advantage suppose to be quieter engine at idle and even out the pressure between the rails. Has anyone done this and your opinion? Looks like a fairly inexpessive, easy and beneficial mod, if it works. Thanks.
 
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Old Jul 25, 2008 | 02:03 PM
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Yes, quite a few on the forum have done this. it's not that new :-)
we call it the high pressure crossover or HPX
 
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Old Jul 25, 2008 | 02:33 PM
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That must be why my search did not reveal much of anything for it.

So did it do what it was suppose to do, or enough to notice a difference?

Did people DIY it or buy prefabbed kits for how much?
 
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Old Jul 25, 2008 | 02:49 PM
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I havent done it, but those who have report a easier start, smoothed idle and running, some even say a small mpg bonus. most guys get the prefabbed, and they are $55.
 
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Old Jul 25, 2008 | 02:55 PM
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It a great cheap mod. I highly recommend doing it. it made mine as quite as my dads super duty in the cab.
 
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Old Jul 25, 2008 | 02:55 PM
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https://www.ford-trucks.com/forums/7...stalled-2.html
Read that one.
 
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Old Jul 25, 2008 | 02:56 PM
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Ford
Scroll bout half way down. This is the hard line version, cost more but i liked it more than the other.
 
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Old Jul 25, 2008 | 03:04 PM
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Originally Posted by secondarychaos
Thats a geat thread!
 
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Old Jul 25, 2008 | 04:30 PM
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Just buy one. I have everything I could need to build a hose type or hard line but its just not worth the hassle. I like the Hard line one my self.
 
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Old Jul 26, 2008 | 09:29 PM
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I have the braided one from Dale at Tymar. $35 It's a good mod. As long as you check it periodicly, you'll be okay.
 
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Old Jul 27, 2008 | 02:36 AM
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i think he is talking about the system that does away with the current pess reg. on the filter housing and regulates the press coming out the back of the head w/ an adjustable pres regulator so that the optimal 70psi is maintained
 
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Old Jul 27, 2008 | 04:51 AM
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I'm pretty sure we're talking about oil, not fuel.
 
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Old Jul 27, 2008 | 10:32 AM
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you are right. i have had this other article on my mind and i think they are in the same mag sorry.
 
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Old Jul 27, 2008 | 02:33 PM
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so are we talking oil, or fuel?

HPX
 
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Old Jul 27, 2008 | 05:18 PM
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I recommend the HPX, easy mod to do and was only $55 from KCM diesel
 
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