1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

Injector decision

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  #21  
Old 01-21-2014, 06:19 PM
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its a t3 divided, you can get a non gated 16cm housing for the hx but you are stuck with the 9cm on the he351. i would also recommend the hx,he351 or my personal favorite a small s300 in the neighborhood of 62/65/14 way superior charger over the other 2.
 
  #22  
Old 01-21-2014, 06:29 PM
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kinda curious what your thought is on a hx35 with 60wheel upgrade (hx40 7 bladewheel) and a 14 exhaust housing (gated). with 5x12 injectors..
 
  #23  
Old 01-21-2014, 08:01 PM
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not worth your time. the billet 6 blade hx40 wheel is better than a 7 blade. but all hx30,35 and 40 turbos have the same shaft diameter. that said when you put the most aggressive heaviest comp wheel on the small shaft you are flirting with a bomb. like i said before an s300 is a much stronger charger with a very similar personality to a hx35 in its smaller form. its larger variants can be a pain to drive around. an s3 is a much hardier charger with way more potential than an hx35,40 or he351 could ever have. if $$$ is tight that do an hx with stock injectors if your wife will let you spend a little, get a decent set of injectors and an appropriate sized charger.
 
  #24  
Old 01-21-2014, 09:58 PM
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well I already had the 5x12 s in and have been happy with them.. I did the 60 comp. upgrade a while back and it made a huge dif.. I picked up a wastgated 14 and put it on since my last post.. not sure what to think about it.. boost is lower and egt are up a bit but I need to adjust my boost elbo.. was kinda curious if the 14 would cool things down and kinda undecided at this point... maybe it will get cooler with a little more boost with the elbo adjusted???? just looking for input.. didn't mean to intrude on the thread guys!!
 
  #25  
Old 01-22-2014, 01:07 AM
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Originally Posted by novapat
kinda curious what your thought is on a hx35 with 60wheel upgrade (hx40 7 bladewheel) and a 14 exhaust housing (gated). with 5x12 injectors..
Couldn't hurt. I have the stock 7-blade wheel on my HX35 (01-02 vintage) with those injectors and I like it. Stock 12cm gated housing. Haven't opened up the fuel more than a couple turns yet because my screw threads are kind of mangled still.

I did drill a 3/4" hole in the divider, and it has an adjustable boost elbow (maybe I'll have a clue what it does after I get a boost gauge).
 
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  #26  
Old 01-22-2014, 06:33 PM
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So today I had the bright idea of switching turbos. School is out and parents are gone for a week, a sick and anemic 2nd gen feed truck sitting in the driveway. Swap hc1 for hx35. Any comments?
 
  #27  
Old 01-22-2014, 07:16 PM
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hook the wastegate up and enjoy
 
  #28  
Old 01-22-2014, 08:31 PM
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How bad will the 2nd gen run with the smaller turbo

---AutoMerged DoublePost---

And how do I put the first gen turbo on the 2nd gen? (Waste gate to no wastegate)
 

Last edited by Jblalock93; 01-22-2014 at 08:31 PM. Reason: Automerged Doublepost
  #29  
Old 01-22-2014, 09:13 PM
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they move the same amount of air roughly. the benefits with the later model charger is the smaller, gated housing aid tremendously in spool-up time. all you do is run a boost line from the intake side to the waste gate actuator and the gate will function as designed. factory they build 17-19psi before the open. and hx35 is a bolt on upgrade, no mods needed
 
  #30  
Old 01-22-2014, 09:29 PM
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So the hc1 will work on the second gen
 



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