Common Rail 7.3 - Ford Powerstroke Diesel Forum
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Old 02-18-2008, 02:29 PM
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Common Rail 7.3

I have thought about fitting the motor with mechanical injection, the hpop gear is not in time with crank, damn.

I have got another dumb idea brewing. Why can we not machine a plug into the oil passage going from High pressure oil rail in head to injector and then use oil rails for the common rail. Then all we have to do is machine plugs that fit into the injector sleeves bored for common rail injectors. There are ports at each cylinder that are plugged, come out of those with the high pressure tubes to injectors. The VP-44 pump can be retrofitted to HPOP location.

The problem for me is electronics, I am not electrically inclined, but the old duramax uses 94 volt to fire injectors. I think ours are 110, I don't know. Is the firing sequence similar enough to use a powerstroke IDM to actuate injectors.

This may be a LONG SHOT but with common rail injection we eliminate the need for Big oil, Big injectors. Thats $6,000 we could spend on Cunninghams and a girdle.

The common rail to me is a much better set up for high horsepower. You can CRANK some horses out with simple programming and then cut it back when you don't need it.

Let me know if I am crazy or not.
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Old 02-18-2008, 02:42 PM
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my vote is for crazy
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Old 02-18-2008, 02:44 PM
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no your not crazy thinking about putting a common rail on 7.3L... because it is already in the works for a couple of guys... I have heard that someone might have a package out soon that you will be able to purchase for your 7.3L that will be common rail... but that has been awhile since I have heard that... sorry but that is all the info that i got..
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Old 02-18-2008, 03:24 PM
AJF AJF is offline
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My vote is for doin it or gettin that pack naja4life was talkin about
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Old 02-18-2008, 03:43 PM
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Keep those wheels turnin,mine done locked up.I count on smart people like you to come up with ideas.
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  #6  
Old 02-18-2008, 04:03 PM
lukecline
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Quote:
Originally Posted by moore20017.3 View Post
Custom built 5'' aluminum stacks
Edge Evolution
Dfuser Steriod T Module
AFE Stage II
Custom Hybrid GT45 and intake manifold
Custom polished 4'' 304 SS downpipe to Aluminum
Custom traction bars
Custom weight bracket w/ IH weights
Rear locker and front spool
Dfuser TC lock up switch
Custom Air bag set up with compressor and reserve:
4'' lift
315 BFG MT's
Three pod AutoMeter guages
Are you running the gt45 with stock injectors or what?
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Old 02-18-2008, 04:17 PM
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Check out my other thread (Custom GT45 hybrid). It pretty much covers it.
Yes Stock injectors, result, lower backpressure, better top end performance, no surge, just slight turbo lag below 1500 RPM. I will be running it indefinetly.
Eventually I'll either go mechanical, stage III or common rail if I can figure out the electronics.
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Old 02-18-2008, 05:05 PM
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The HP oil rails will not handle the pressure you are talking about with a common rail. A common rail will run between 25K psi and 29K psi fuel pressure. The heads will handle 5K psi and some have had heads split with 5K psi of oil pressure from what have read.
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Old 02-18-2008, 05:09 PM
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Quote:
Originally Posted by strokin_early_99 View Post
The HP oil rails will not handle the pressure you are talking about with a common rail. A common rail will run between 25K psi and 29K psi fuel pressure. The heads will handle 5K psi and some have had heads split with 5K psi of oil pressure from what have read.
I bet that is down right scary.
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Old 05-15-2008, 05:44 PM
RollinEarly05...now

 

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moore20017.3 Keep it up, I think your on to something. Let's us know how it goes!!!
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