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Old 01-07-2016, 06:28 PM   #1 (permalink)
Lifted6nickel
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Dual DS4 Injection pumps?

Okay. So, I was looking at twin turbo 6.5s on Google a few minutes ago and came across this dual DB2 6.5 tractor. It's set up almost like one of the new CP3 dual pump kits. I'm wondering if it's possible to do a similar set up with a DS4. I assume it would be fairly complex, but could it be done? If so I'd love to put dual DS4 injection pumps on mine. More fuel + more air = more fun

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Old 01-07-2016, 06:31 PM   #2 (permalink)
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Old 01-07-2016, 11:01 PM   #3 (permalink)
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Someone has been watching the Diesel Boys on Discovery Channel

To answer your question, Yes it would be possible if you have some Fab Skills and Major $$$$$$..

The reality is your better off modifying a Dodge Motor ( cough, cough ) for play, not a 6.5L block..
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Old 01-07-2016, 11:08 PM   #4 (permalink)
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Dual pumps seems like something that would be tricky to get to work right and keep working.
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Old 01-08-2016, 12:07 AM   #5 (permalink)
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Honestly I did some research into, and dual DB2 pumps seems like it could be very simple, but I have a 1996. So, I have the DS4. My concern is not so much fab or money but the computer. Being an early OBD2 ECM. How would it respond to dual pumps? What could I do to make it run two pumps? There's not much info on this subject. Would it just be easier to run dual DB2s instead of dual DS4s?
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Old 01-08-2016, 06:34 AM   #6 (permalink)
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I think you would need a dedicated ECM, with code for both pumps. Absolutely no way to get stock ECM to run them both... Db2 would be an order of magnitude simpler.
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Old 01-08-2016, 08:36 AM   #7 (permalink)
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Quote:
Originally Posted by Lifted6nickel View Post
Honestly I did some research into, and dual DB2 pumps seems like it could be very simple, but I have a 1996. So, I have the DS4.
People with DS4s have swapped to DB2s, so why couldn't you just swap to 2 DB2s? It would be sooooo much easier then thing to run two computers and get them synced up.


If you do go through with this, please strap a GoPro to the front bumper pointed backwards. I want to see the fireworks when you dump that much fuel to an old 6.5 and start throwing connecting rods onto the road! It'll be okay though, I don't really know what a connecting rod is, and If I don't know it, you don't need it! What's the worst that could happen!?!?
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Old 01-08-2016, 12:49 PM   #8 (permalink)
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What I'm talking about doing is going to be years down the road if I stick with it. What I have now is a 1996 k1500 6.5 with an automatic 4l80e. I have thought about doing a DB2 swap just so I don't have to deal with the electronic pump/PMD problems. But if I did that I'd also want to get rid of the 4l80e and put in a nv4500. That way I don't need a separate controller for the trans. Honestly I think I will end up trying this but it won't be anytime soon. I'll probably swap the trans before I even think about doing dual DB2s. Mainly because at the same time I do the dual pump conversion I'll probably do some additional work to the engine. Turbo, Pistons, Heads, etc. What would be the best way to go about putting the DB2 on a separate pulley? Honestly I want to leave one in the original mounting position and one on a pulley near where the compressor is. How could I link the throttle linkage together?
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Old 01-08-2016, 12:55 PM   #9 (permalink)
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Quote:
Originally Posted by Lifted6nickel View Post
What I'm talking about doing is going to be years down the road if I stick with it. What I have now is a 1996 k1500 6.5 with an automatic 4l80e. I have thought about doing a DB2 swap just so I don't have to deal with the electronic pump/PMD problems. But if I did that I'd also want to get rid of the 4l80e and put in a nv4500. That way I don't need a separate controller for the trans. Honestly I think I will end up trying this but it won't be anytime soon. I'll probably swap the trans before I even think about doing dual DB2s. Mainly because at the same time I do the dual pump conversion I'll probably do some additional work to the engine. Turbo, Pistons, Heads, etc. What would be the best way to go about putting the DB2 on a separate pulley? Honestly I want to leave one in the original mounting position and one on a pulley near where the compressor is. How could I link the throttle linkage together?
There is an old thread from 2010 on this..

https://www.dieselplace.com/forum/63-...l-tractor.html

And one from 2006 here that has a URL to a write up on it:
https://www.dieselplace.com/forum/63-...s-tractor.html
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1996 K3500 6.5L,( "F" Eng #141 cast block) 5 speed manual, crewcab, dually longbed: 208,000mi.
Diamond Eye 4" Turbo Back Exhaust w/2.5" Flo-Pro Crossover
AirDog II DF165 w/ tank sock delete - XDP
TD-Max boost controller - Kennedy Diesel
OPS extension hose - Leroy Diesel
Glow Plug Harness- PT Wiring Solutions
Glowshift Maxtow EGT,Boost, Fuel gauges
Boost & Fuel Pressure Bolts - Leroy Diesel
2/0 Battery Cable Upgrade - PT Wiring Solutions
PMD w/#9 resistor and Re-Location Kit, mounted to bumper - Leroy Diesel
GM-5 Turbocharger
4.10 gear ratio
OptiLube summer + Formula


Proud member #1039 of The 3500 Dually Club


Last edited by OkDually; 01-08-2016 at 12:57 PM.
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Old 01-08-2016, 01:04 PM   #10 (permalink)
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It won't open the form. It tries to, but then goes to the main page

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