Commonrail Powerstroke... 2nd attempt... ON-TOPIC!!! - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 33 (permalink) Old 10-22-2007, 04:13 AM Thread Starter
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Commonrail Powerstroke... 2nd attempt... ON-TOPIC!!!

I as well as many others I am sure want to know more about the specific, detailed differences between the HEUI and the Commonrail motors. Pros and Cons of each. Limits of each, HP TQ. Has anyone toyed with the idea of making a powerstroke into a commonrail motor? What would it take, other than tons of money...

May not be something worth building for anyone, but there are a lot of curious people out there.

PLEASE O PLEASE KEEP THIS ONE ON TOPIC UNLIKE THE OTHER COMMON RAIL POWERSTROKE THREAD THAT HAS MANY MANY PAGES OF ARGUEING ABOUT PONIES!!!

Alex C.

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post #2 of 33 (permalink) Old 10-22-2007, 05:26 AM
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I am saddened that the old thread got closed because there was a lot of good info in there you just had to dig through all the B.S. to find it
but just to get this one started I think the possibility of adapting The fuel system off a 6.4 powerstroke or a duramax to a 7.3 was mentioned in the old thread but that's about as far as it got.
In my opinion with the tunability of the chevys with EFI live and the fact that all of the 6.4's programming would involve all the emissions stuff, I think the duramax setup would be a good place to start.

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post #3 of 33 (permalink) Old 10-22-2007, 01:50 PM
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Quote:
Originally Posted by pontiacross
...I think the duramax setup would be a good place to start.
I've thought about it a few times and don't know where to start. I wonder if the D-max Piezo injectors would work with our computer signal.
That's one obstacle.
If, for some reason that could be worked out, then the injectors would have to be made to fit the injector holes in the PSd. I have not seen one, anybody know what the D-max injector looks like? If it's long enough to fit in the PSD head?
Other than the computer and injector, the CP3 pump seems pretty easy to mount and plumb.

Thoughts?
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post #4 of 33 (permalink) Old 10-22-2007, 03:44 PM Thread Starter
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On the Dmax system is all the plumbing external? By that I mean not running through the heads.
I think somebody has told me that the Dmax injectors are not under the valve covers, so wouldn't a new custom head have to be machined to do this. I think then it would be approaching being a (Pardon the term powerstroke guys) "DuraStroke"

Alex C.

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post #5 of 33 (permalink) Old 10-22-2007, 06:29 PM
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I have never had the injectors out of a d-max, but I would think you could machine a bushing to go in the powerstroke injector hole that the common rail injector would fit in. Then you would just have to modify your valve covers to allow for the fuel lines. I think the biggest obstacle there will be getting the spray pattern right for the 7.3
some thing to consider is it may be possible depending on how the solenoids are set up you may be able to use dodge or 6.4 injectors with the chevy electronics and pumps. I think they all work basically the same it's just a question of if the Chevy's computer can put out the right amount of voltage and duty cycle to fire the other injectors properly.

Ross
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post #6 of 33 (permalink) Old 10-22-2007, 09:26 PM
 
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99strokerdude, the thread that I started was great you just had to follow it. The setup I think we have agreed on was the p-pumped powerstroke. It has been done before by aleast two people that I know of. The p-pump is more practical and is proven in the 5.9 pullers and drag racers. A lot of custom machine work will be needed such as attaching to the engine timing and custom heads to adapt new bigger injectors and while your at it you might as well port and polish the intake and exhaust. There are more things to it. I suggest reading all of my thread.
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post #7 of 33 (permalink) Old 10-22-2007, 09:37 PM
 
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It is sad that the other thread got of topic but hopefully this one will stay on topic and provide us with information. I think it is great that there is intrest and this could be the key to beating the 5.9s and d-maxs.
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post #8 of 33 (permalink) Old 10-22-2007, 09:58 PM
 
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I think that while a P-pumped engine is proven to work great for all-out performance, an electronic common-rail system has more potential, to be streetable with just as much performance.

If you want to talk about P-pumping the 7.3 then that another topic. To keep things clear this should be about a common-rail engine only.


It would also be helpful if someone could get some pictures and dimensions of the 7.3, d-max, and cummins injectors side-by-side.

On the dodges the injection system is external, then runs through a fitting in the head and then back into fuel lines to the injectors. This is just so the injectors can be under the valve cover. That would probably be the way to plum the 7.3.

On the P-pump powerstrokes what did they do for injectors?
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post #9 of 33 (permalink) Old 10-22-2007, 10:17 PM Thread Starter
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Quote:
Originally Posted by Stroker01
99strokerdude, the thread that I started was great you just had to follow it. The setup I think we have agreed on was the p-pumped powerstroke. It has been done before by aleast two people that I know of. The p-pump is more practical and is proven in the 5.9 pullers and drag racers. A lot of custom machine work will be needed such as attaching to the engine timing and custom heads to adapt new bigger injectors and while your at it you might as well port and polish the intake and exhaust. There are more things to it. I suggest reading all of my thread.

I actually read almost all of the thread back when it was three pages instead of five. It just got too hard to dig through all the extra junk. I'm sorry your thread got so off-topic. I just thought it would be beneficial to anyone interested to just have a new one started that stays on topic.

Being as the subject of P-Pumped Powerstrokes took the other one off topic, I don't want to make that happen to this one, but I do want to ask...
What is a P-Pumped Powerstroke? I'm thinking something like a short overview of it, potential, limits, the idea behind it.

Thanks y'all.

Alex C.

R.I.P. 2006 F-250 CC SB Fx4. w/ 500 RWHP *stolen 7/15/2010*

1990 F350 CCLB 4x4 -- 24V Cummins, 200hp DDP's, SuperB over S475-sx3, Cam and valvesprings, Spe-rite Convertor, Billet input.

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post #10 of 33 (permalink) Old 10-22-2007, 10:20 PM
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All I can say is why? For the cost of some kind of kit, you could swap in a real CR motor? The 7.3 bottom end will never hold up. But thats all I will say.

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