upgrade turbo to HX35W?
 

Hi, I'm new here. Nice site! I have a 93 cummins that is running loaded all the time. I have a big camper on it and i use it to pull my race car trailer. The mods are listed in my sig. It has 140,000 miles on the stock injectors, and I figured they must be worn out by now. So I just ordered some rebuilt bosch injectors that are 5 x .012, and I am adding 4" exhaust. EGT's can get way high, especially on a long uphill pull.
What I want to accomplish is better mileage towing, less smoke, especially when leaving from a stop, and lower EGTs. Extra power would be a bonus, but it does fine the way it is.

So would swapping an HX35w assembly into my exising 16cm non-wastegated exhoust housing be a good step? I see these for sale on ebay by the ricers, and they claim "twing scroll"60 mm". I am assuming that is a good thing? Or is there a better choice. I am short on time before my next trip, so I am looking for something easy and fast if I do it now, or I can wait till winter and do something more time consuming. And cheap if possible.

Any advice or suggestion would be evry much appreciated!

Thanks, Joel

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your better off doing a small s300 very streetable turbo and would be good for the mods toy have listed and make sure you get guages before you melt that engine.

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ooh and you might want to re-gear to 4:10s

I am running a HX35 with 5x.012 injectors. I have more pump tuning to do, but so far I haven't yet been able to get past 1200 degrees running empty - no matter how hard I try.

The exhaust housing on the HX35 might to too tight/hot for towing heavy.

Overall, still a big improvment over the H1C.

Thanks for the reply's!

jdbigblue12v, is that turbo a bolt in, or is there some modification/fabrication involved?

u2slow, if I swapped the hx35 into my 16cm exhaust housing, would that be a big enuff housing for towing?

I run my hx35 with a maxed out pump, second gen lift pump with regulator, exhaust intake and 5x12's n it goes good pulls like it's got a ford on it's butt all the time climbing the mountains too.

You have gauges yet? Maxed out fuel screw and your not having high egt's with that load?

Oh, I forgot to put the guages in my signature. Yes, I have pre-turbo EGT, trans temp, and boost guages.

I just won a turbo off of ebay, a HE351cw. he351cw holset turbo 04 05 06 07 5.9 cummins | eBay

Now I have to learn how to operate the waste gate on this thing. Any ideas?

I think I can make an exhaust adapter on the lathe that I can weld to the exhaust pipe and clamp to the turbo.

How about the oil lines, does anyone know if they fit?

Thanks! Joel

the s300 should be a bolt onn turbo just have to clokc the compressor housing to line up to intercooler tubes. that ebay he351 is not a very trustworthy turbo and it takes alot of modification to run that turbo.

An he351cw will bolt right on just have to pull the pins and clock the housings i dont run a wastegate on mine with 6x12 injectors and your stock oil lines fit on it. Youll need the threaded bushing that goes into the bearing housing off your h1c. And thats a good turbo long as its tight id run it mine was a used unit to.

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Here's mine with my stock wheel bolted on as a joke
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