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

hx35 swap

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Old 04-15-2012, 03:21 AM
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Default hx35 swap

i just picked up an hx35 off of a 1996 5 speed truck. it only has 99xxx miles on it but i do not know the exact size of the exhaust housing from a manual tranny truck. is it 16cm? and how much boost psi is safe to run through this turbo? just picked it up for 150$ so i cannot complain, eventually gonna do a hx40 hybrid.
 
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Old 04-15-2012, 07:11 AM
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All dodge p-pump engines I know of came with 12cm turbine housings

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And I'm not necessarily saying its a good idea but I've seen several guys run 60 psi continually and not hurt the hx35
 

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Old 04-15-2012, 08:56 AM
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If its from a 94 to 98 12 valve it will have a 16cm, if its from a 98.5 to 02 24 valve it will have a 12cm, also I would not suggest hitting over 40 pounds unless you got head studs and a head gasket that can handle it

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Old 04-15-2012, 09:08 AM
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Originally Posted by Bryson711
If its from a 94 to 98 12 valve it will have a 16cm, if its from a 98.5 to 02 24 valve it will have a 12cm, also I would not suggest hitting over 40 pounds unless you got head studs and a head gasket that can handle it

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I never heard of a hx 35 on an dodge that had 16 housing lets see a pic of said housing
 
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Old 04-15-2012, 09:54 AM
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all hx35 and wh1c i have ever seen or read about have 12cm housings the hx40's have 16cm housings. and safe psi is 35 i would LOVE to see 60psi on a 35 saftey glasses and a bullet proof jock strap! LOL
 
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Old 04-15-2012, 10:01 AM
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I have seen 60 psi out of a 35 in my 99 that has a 96 12valve in it going up the mountain I have seen 1600+ degrees and 60lbs I just pulled it this winter and sold it to a local machine shop that made a 35 40 hybrid out of it and is using it. I think I had a good one
 
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Old 04-15-2012, 10:08 AM
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what a lucky SOB. the efficiency range is maxed in the mid 30's that poor poor little hx bet it sounded cool
 
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Old 04-15-2012, 10:10 AM
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It sure did scream and yes it was way past its efficiency range
 
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Old 04-15-2012, 01:43 PM
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i never said it DEFFINATELY had a 16cm housing just asking if thats what it had. i will post pics later and pics of the swap. a i going to need anything besides a gasket between the turbo and manifold?
 
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Old 04-15-2012, 06:35 PM
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It will have a 12CM waste gated housing. All HX35's n WH1C's had a 12cm waste gated housing. hy35's had a 9CM waist gated housing.

I did the swap on mine yesterday cuz I had it to try n help with EGT's till I get a bigger one to help with the big injectors. I reused the gasket between the manifold n housing, it's just a flat piece of tin.
 


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