Finally rounded up an HE351cw!

Cummins Driver

Cummins Driver

THE Cummins Driver
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May 16, 2007
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Found an HE351cw off of an 05 dodge on the local craigslist for a pretty good price, and went and picked it up today. Guy thought he blew it, but he actually had a hole in his intercooler or something. Seems to be in great shape from looking at it and feeling of it. I hope to be able to get it on the truck within the next month or so. Im partially doing this so i can pull workstock at times, but i also think the spoolup and airflow will be better than my 58mm HX40, so i am pretty anxious to get it on. I dont plan on over 450-475hp for a good while, and i want it to be friendly to tow with, so I think it will be about the best turbo for me for now anyways. Ill probably wastegate it around 38psi.

Ill be posting all the pictures of the install and questions in this thread. Pretty anxious to see how spoolup and EGT is on it. I think it will cool me down some.
 

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I thought about putting one on my 24V once, its a shame the EH is so small... Would be a really kickass turbo(all things considered) if it had like a 14cm housing on it.
 
Yeah it would be nice if the housing was a little bigger. But seeing as the exhaust outlet is 4" and the wastegate dumps directly into the downpipe instead of having to come through a 3" opening like an HX35, it should still be a pretty good setup. I could always add an external gate.

I plan to clock the compressor housing down so that the outlet comes out as close to level with the intercooler as possible, and I think i have a pretty easy way of connecting the intercooler piping. Ill have to find another way to mount the wastegate actuator. I will probably build my own bracket for the actuator since im clocking the compressor side.

Anyways, im anxious to see how it works out.

Eric
 
ive thought about running one but i would definitely run an external gate.

Garrett
 
I know the exhaust housing is small, but I still think it has to flow better than any of the HX35 housings when the gate opens up so I dont think it will be a problem.

Eric
 
Im planning to drill it out some. Im sure it will still be a little tight on the exhaust housing, but daily driving and towing it should be nice. Especially when i get a looser converter. :rockwoot:

Eric
 
Cummins Driver said:
I know the exhaust housing is small, but I still think it has to flow better than any of the HX35 housings when the gate opens up so I dont think it will be a problem.

Eric
Click to expand...


i know properly tuned it is going to spool great but you still think it will outflow an 18.5 or 21cm housing?

Garrett
 
Well, I think it will flow just as well. The thing is, no matter how big the housing on an HX35 is, it still has a 3" outlet which is a restriction. I sure dont see how it could flow any worse as long as the wastegate is being allowed to open up at high boost.

Eric
 
Cummins Driver said:
Well, I think it will flow just as well. The thing is, no matter how big the housing on an HX35 is, it still has a 3" outlet which is a restriction. I sure dont see how it could flow any worse as long as the wastegate is being allowed to open up at high boost.

Eric
Click to expand...

ah, so true. probably a big reason why im planning on an external gate for mine.

Garrett
 
With either charger, an external gate would be ideal of course. I would like one, just dont have the $$ to buy one and mess with it right now. I think this turbo will spool pretty quick and flow well though, so Ill run it and see what i think of it anyways. Im pretty sure ill be happy with it.

Eric
 
Cummins Driver said:
I plan to clock the compressor housing down so that the outlet comes out as close to level with the intercooler as possible, and I think i have a pretty easy way of connecting the intercooler piping. Ill have to find another way to mount the wastegate actuator. I will probably build my own bracket for the actuator since im clocking the compressor side.

Eric
Click to expand...
The turbo has to come apart to clock it. There are tiny locating pins in the housings (both) and they must be removed. The gate can be ported to 1" and that helps flow a bunch. I have a 3rd gen outlet flange and a WG solenoid block off plug if ya need it.:Cheer:
 
Don't forget that the compressor is 60mm too... thats alot better than the HX35 too.
 
TURBOLVR said:
The turbo has to come apart to clock it. There are tiny locating pins in the housings (both) and they must be removed. The gate can be ported to 1" and that helps flow a bunch. I have a 3rd gen outlet flange and a WG solenoid block off plug if ya need it.:Cheer:
Click to expand...

Yes, i heard that somewhere. Is it a problem to remove the pins or do they just come out? I also plan to drill the gate out to 1". I dont think i need the elbow or plug, but if i end up needing any of it i will definately be in touch! Thanks!

Oh, and yes the compressor side is 60mm. I had all the parts to build a 60mm Hybrid HX35(just sold them), but i felt the exhaust would flow better on the HE351cw, and the 60mm HE351 wheel has an 88mm major diameter compared to the 60mm 6 blade HX35 wheel having an 83mm major diameter, so it should flow better than even the best HX35/HX40 on the compressor side.


I just ordered a fuel pressure regulator on ebay that I will be plumbing in soon too. I dont know how much it will help, but at least I will be able to dial in my pressure, and it has a built in gauge, so i should be able to watch my fuel pressure. Surely it will be a little better than the overflow valve.


I will very slowly build this thing into what i want it to be:hehe:

Eric
 
Cummins Driver said:
Yes, i heard that somewhere. Is it a problem to remove the pins or do they just come out? I also plan to drill the gate out to 1". I dont think i need the elbow or plug, but if i end up needing any of it i will definately be in touch! Thanks!
Eric
Click to expand...

pins pull out easy with pliers. I wasnt offering the elbow, I have machined flanges to weld up a down pipe. I can actually make the whole thing for ya if you want.:Cheer:
 
Oh i see. Any pictures? How does the flange for the downpipe work? I currently have a 4" HX40 downpipe, and id like to be able to use it, but i may end up just building my own. Not sure yet.

Eric
 
You can actually open up the wastegate port to about 27mm or 1-1/16th and still get a good seal with the stock wastegate puck. With mine opened up to 27mm, I can throw 500+ HP worth of fuel at it and boost will start to come down as the gate opens up and settle a few psi below my opening pressure. In fact, as RPM goes up, boost comes down and around 3500 rpm, boost might actually be 38psi when the gate is set to open around 44psi at 2400 rpm.
 
I think i will set mine for about 38psi. Should be a good happy medium for plenty of boost, and long life from the charger. I will definately be opening up the gate some. I would imagine the air should be pretty cool at that boost level too.

What exactly does the black solenoid on the front of the turbo do? Seems like i heard it opens a bleed port or something?

Eric
 
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