HE351 retrofit to second gen - Dodge Cummins Diesel Forum
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post #1 of 1091 (permalink) Old 05-17-2009, 10:45 PM Thread Starter
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HE351 retrofit to second gen

I'm working with Jacob (JKidd) @ DieselAutoPower to work through all the details of retrofitting a 3rd gen HE351 to our second gen trucks. I finally got around to installing the boost and drive pressure gauges this weekend. I had this dual gauge pod laying around left over from my Samurai project. The light is for my low pressure light I had on my last set of gauges.



Anyhow, my truck has a Adrenaline/pulse with a set of Farmboysdiesel 150hp sticks. I've installed a boost elbow as well. Along with silicone boots. During the clips I had the trans locked in OD with the TC locked as well. The ADR was on PL8. Also it's set to defuel at 40psi. As you can see, the poor HX35 is overworked to say the least. But drive pressures are ok. Also, I'm rolling on 37" tires too so that's why I'm doing rolling speed tests since spinning these big tires aren't fun (or cheap! ).

http://www.youtube.com/watch?v=rgSPVr89TmM

http://www.youtube.com/watch?v=G018zl9U-JY

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post #2 of 1091 (permalink) Old 05-17-2009, 11:32 PM
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retrofitting a 3rd gen HE351 to our second gen trucks
That would be awesome! I hope to hear more

01 Dodge 2500 4X4 QC/LB Auto | Quad ADR | 6" grand rock miters | NAPA 2790 BHAF | silencer ring MIA | Airdog 150 | Autolite Gauges | 2.5" leveling kit| 305x70x16 bfg at | Train horns| stock auto dying as we speak
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post #3 of 1091 (permalink) Old 05-18-2009, 06:00 AM Thread Starter
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Yup, I'll keep everyone posted. I had planned on making a mount for the wastegate and just getting by. But I'm going to work out a downpipe and charge air pipe for our trucks.
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post #4 of 1091 (permalink) Old 05-19-2009, 03:56 PM
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Hopefully it will be worth the time and investment. We are looking for a nice cheap alternative to an HX35/40 or s300. Should be great for the 12v and 24v automatics.

Keep up the good work. Maybe I should have set you up with 2x 60lb gauges so it would be easier to compare.

How is it towing?


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post #5 of 1091 (permalink) Old 05-19-2009, 09:55 PM Thread Starter
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Originally Posted by jkidd View Post
Hopefully it will be worth the time and investment. We are looking for a nice cheap alternative to an HX35/40 or s300. Should be great for the 12v and 24v automatics.

Keep up the good work. Maybe I should have set you up with 2x 60lb gauges so it would be easier to compare.

How is it towing?
I think maybe 2x 60's would have been better. I don't plan on high boost. It'll work though.

Haven't really towed anything since installing the 37's due to clearance. But you can see in the vids, I've exceeded what the HX35 can do.

Today I finished cleaning up wth HE351 exhaust housing. It had a good deal of rust on it. I also took a little time to open up the wastegate a little with the die grinder. I'm able to pass a quarter through it now. I'll take pics tomorrow. Hopefully I'll get the turbo buttoned back up by this weekend. Then I'll be working on plumbing up the downpipe and charge air.
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post #6 of 1091 (permalink) Old 05-19-2009, 11:05 PM
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this has been done more than once... the HE351 is a decent turbo... doesn't flow on the exhaust side like an S300, but better setup than a HX hybrid, just make sure you port the wastegate hole
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post #7 of 1091 (permalink) Old 05-24-2009, 07:53 PM Thread Starter
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Made a little more progress today. I've been gone all weekend with the Wife to the moutains. Tomorrow is time with the kids, so I'm doubing I'll get anything else done. Anyhow, I've got to get more parts before I can proceed now.

The HE351 I picked up was in rough shape looks wise. The wastegate was rusted shut, so after a day of fighting to get it torn down. (Without breaking anything!) I let the exhaust housing sit in some old ATF I had for two weeks. That freed up the wastegate. I then took the housing and went to it with the air rotary tool and a rotory file. I opened up the wastegate to the size of a quarter. (You could open it up a little more)



After that I taped off all the flange sections to paint the housings.



Also while I had the actuator off I drilled out the "rivet" hole so I can adjust the preload on the wastegate.



Another thing you'll need to do while tearing down/reassmbly is remove any of these indicator pegs. These clock the center housing upsidedown to what a 2nd gen needs.



Got everything buttoned back up and together. I left the exhaust manifold at ~45deg, then made the oil intake hole squared off that. Basically imagine the flat surfaces of the exhaust port and the oil inlet as -\ The - is the oil inlet, and the \ is the exh. Then use the wastegate actuator to line it up.



You'll also notice in the pic the ATS plug. Since I wasn't going to be using the factory solenoid, I used one of these to clean up it's looks. The downside is the fact that it plugs off the feed to the actuator. I plan on installing my boost elbow from my HX35 anyhow. So I drilled the housing near the boss to 5/16".



Then I tapped it to 1/8"NPT. These taps can be found at checkers auto, and some Lowes. A good local hardware shop would likely have them as well. I installed a elbow I had laying around just for show.



I've got the exhaust gasket, and the oil return line gasket. So now it's a matter of making a charge air pipe and getting the silicone hoses for it. I'll try to source those parts this week.
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post #8 of 1091 (permalink) Old 05-24-2009, 09:34 PM
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The progress looks real good man!

01 Dodge 2500 4X4 QC/LB Auto | Quad ADR | 6" grand rock miters | NAPA 2790 BHAF | silencer ring MIA | Airdog 150 | Autolite Gauges | 2.5" leveling kit| 305x70x16 bfg at | Train horns| stock auto dying as we speak
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post #9 of 1091 (permalink) Old 05-24-2009, 09:51 PM
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where did you get the plug for the electrical/boost controller port?

00 3500 dually, 5 speed, 4 door, Gauges, with Quad Adrenaline, Raptor 150 with 1/2inc fuel lines, 4inch DP 5inch exhaust, BHAF, SBC DD clutch, good for 353.7hp and 938.2ftlbs torque. and more to come. Update:HE351cw and CCP 150hp injectors
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post #10 of 1091 (permalink) Old 05-24-2009, 09:52 PM Thread Starter
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where did you get the plug for the electrical/boost controller port?
ATS makes it. I'm working with JKidd, hopefully we'll come up with a complete kit to do it all.
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post #11 of 1091 (permalink) Old 05-24-2009, 10:00 PM
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very nice man

why can't it work on a manual tranny truck though?

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post #12 of 1091 (permalink) Old 05-24-2009, 10:18 PM Thread Starter
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It'll work for a stick as well.
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