HY35 vs. HE351CW
 

I just tore down my HY35 to find that my turbine housing is cracked around the WG exit hole. My compressor and CHRA look to be in good shape. I see all kinds of talk about the HY35 and the HE351CW being similar turbo's, but nothing too specific. This is a stretch and Im not sure if anyone knows the answers to this but.... What items are interchangable between these two turbos.

Compressor housing?
Turbune housing?
CHRA?
ect?

I would like to use the revised HE351CW turbine housing since mine in FUBAR, but not sure if it will fit and work with the HY35 turbine wheel or CHRA?

weld the crack and then weld the wastegate flapper closed and run an external wastegate.

Thank you, I understand that this is an option, my question is about part interchangability.

honestly i dont know if there parts are interchangable but its never a good idea to interchange turbo parts unless you have the professional tools and training to do so. fix your turbo and call it a day.

I have the FSM for both turbo's, all the tools, and 4 years as a fuel and electrical component rebuild shop chief specilizing in the rebuild of turbo's, blowers, and diesel mechanical fuel injection components. I also have full TIG and stick capabilities, so either option is open to me (repair turbine housing or mix/match parts). Im hoping for someone with "real world" experience with both of these snails who can thumbs-up/down the interchangability of the components I listed above. If I wanted to simply welded it up, I wouldnt be wasting our time with the questions posed in my initial post.

easy there killer. just trying to help. you obviously have the knowledge and tools to do so where most others dont so why dont you be the first to try and interchage the parts. most people dont use these turbos so its going to be tough to find your answer. anyway! good luck.

well ---- with an awesome know it all attitude like that then good luck on your setup, i've actually been working on holsets and have swapped most of the mentioned parts above but good luck with your trial and error

Jesus kill the drama. Go back and read the initial and pretty much the only relevant post in this thread. I asked a very specific question. I didnt ask for opinions on how I should procede, and the background was simply intended to show that I am aware of my options, and while I appreceate advice I am looking for specific answers. I didnt intend for this thread to be a discusion on how to go about fixing problem x. I know what I want to do and thats why my questions were so specific. I dont know it all as displayed by my initial post. Apparently you do "know it all" but are going to with hold your information because you dont like my bottom line attitude.

What year dodge did the he351cw come in?
Cummins doesn't list an HE351cw in their 11 million engines.
Maybe you mean he341cw? The HY35 and the HE341cw look a lot alike.

This is an HE341cw

http://img256.imageshack.us/img256/462/he341cw.png

Does it look like the one you have?

I dont have the 351CW yet. Trying to determine interchangability before I go shopping. The little information I have found on the internet illudes to no specifics, just that the HY35 and HE351CW are very similar and the revisions are primarily related to a bit of a better flowing turbine housing and a slightly more effecient compressor (with the 90deg out-let vs. straight). No specifics like CHRA, turbine wheel, or turbine housing interchangability. Ill be very happy to hear any information you have with the end goal being to build a hybrid with the v-band turbine out-let of the 351 and the HY35 CHRA, turbine,and compressor housing.wheel. If its not possible thats cool Ill go another route, I just hate to ---- can the good parts of my HY35 because the turbine housing is cracked. Thanks for any information its much appreceated.

Check the picture above. What i do is compare part numbers of those items and see if "the other turbo" has the same ones.
What do youy mean by CHRA?

The CHRA (center housing rotating assembly / bearing housing) is #40 in the pic. I thought about comparing pn#'s but the pdf service manuals I downloaded dont have them. Also I know its not uncommon for manufaturers to change pn#'s from model to model regardless of them being the same. They so this to track systemic failure from one model to another. Perhaps not the case here. Regardless, proving that the pn#'s for the HY35 CHRA and turbine and the HE351CW (05-07 automatic trucks?) are the same would solve this for me. If you have this information that would be great, thanks for the help. I would call a dealer but I can see them getting very annoyed at my odd questions and just haging up me....

I found a post on another forum and borrowed some pics of messurments of a HE351CW turbine wheel. Then I took some pics of my HY35. It looks promising.

HY35
Attachment 6349

Attachment 6350

HE351CW
Attachment 6351

Attachment 6352

the HE351cw is stock for 03 and up cummins 5.9 and they have the same mounting flange but thats about it. on one of the dodge diesel forums a guy replaced his HX35 with the HE351 and had good luck with it. not sure if this helped

The holset he351cw is introduced in the 2004.5 and up cummins. The 02 and 03 look the same as the he351cw with the 90 deg snout BUT the are just a HY35. Here are some info that i have gathered in my holset research..........

-Hy35, flows approx 57 lbs/min
-Hx35, flows approx 60.85 lbs/min
-He351cw (Spools faster than the hx35, but makes the same power) flows approx 60.85 lbs/min
-Hx40, flows approx 70.10 lbs/min
-Hx45 (can't find the flow at this time)
-Hx50/52 or 55. flows approx 99.20 lbs/min
-Hx60 (Notice I didn't say HT60), flows approx 125.66 lbs/min
-Hx82, flows approx 198.42 lbs/min

351cw should have the bigger 60mm hx40 wheel?

I dont think so. I have one now and Ill messure but from what information I can gather, and just from eye-balling it, it does look to be if not the same, very simalar to the HY/HE35 compressor wheel. When I get around to tearing it apart Ill messure and get some pics up as well.

No, but its close to a 60mm.