Questions for Justin...

[Archer Fabrications]

Let me check on te engine. You want the code or what? It's pretty damn new truck.


It's a cummins 8.3 2006 or 2007.

I believe it's a peterbuilt 335

 

[JusMX141]

HX40's were only used on 8.3L Cummins engines to my knowledge, so I'm guessing that's what engine it has....either that or the turbo is WAY undersized.

 

[Archer Fabrications]

^your correct thoughts now? Lol not sure how i would find out if it's mechanical or not. Since it's a 2007 i would assume it's all ecu based.

 

[blackrosenova40]

If you give me the engine serial number I can look up what fuel system it has.

 

[Archer Fabrications]

Well shit man i would but I'm in ontario canada and truck is in washington. No can do, was just tryin to help him out, If i can't give enough info to answer the questions then thats okay, my bad

 

[Archer Fabrications]

Google image, but this is the same truck.

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Probably doesnt tell much..

 

[blackrosenova40]

It wouldnt do any good installing that Hx52 on it. The engine ecm is speed density based and would require a new tune as it wouldnt know it is recieveing extra airflow.

 

[Archer Fabrications]

But it is tuneable right? Would it need anything else upgraded?

 

[blindboarder_02]

This may be a silly question, but I havent the slightest clue who Justin is. I think i met you at the SO in 2011-2012. I understand you are the guy to talk to about Turbos. Do you sell turbos? Rebuilt turbos? I couldnt find anywhere in this thread that clarifies this. I know this isnt a "WTB/WTS" thread, just looking for information. My PM's are not working or i would have asked you directly. Thanks in advance.

 

[Archer Fabrications]

You probably need to delete messages then. He rebuilds jb turbos. Click on his supporting member thing in his signature.

 

[LandSpeed-DSM]

It wouldnt do any good installing that Hx52 on it. The engine ecm is speed density based and would require a new tune as it wouldnt know it is recieveing extra airflow.

Come again? Speed density is MAP and IAT.. how do you propose it wouldn't detect a change?

It will need to be re-tuned, that we agree upon.

 

[Archer Fabrications]

Unless the map is maxed out. Which i informed him about. The ecu might not be programable though....
That would suck.

 

[blindboarder_02]

You probably need to delete messages then. He rebuilds jb turbos. Click on his supporting member thing in his signature.

Thanks Urban.

 

[blackrosenova40]

Engine has an Hx40

Install an Hx52 and you will be flowing more air per psi of boost and Im sure there will be less backpressure as the turbine housing is larger.

Engine VE will be changed everywhere and speed density isnt able to pick up these changes as easily as a mass airflow sensor can.

Come again? Speed density is MAP and IAT.. how do you propose it wouldn't detect a change?

It will need to be re-tuned, that we agree upon.

 

[LandSpeed-DSM]

Engine has an Hx40

Install an Hx52 and you will be flowing more air per psi of boost and Im sure there will be less backpressure as the turbine housing is larger.

Engine VE will be changed everywhere and speed density isnt able to pick up these changes as easily as a mass airflow sensor can.

That has not been my experience with Speed Density. Both of my current cars run SD.. Honda and DSM.

 

[Archer Fabrications]

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Looks okay to me? What you think jus?

 

[Archer Fabrications]

Oh there is this little dent but it's not on where the bearing rides. I havent got a good pair of snap ring pliers to get the bearings out yet.

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[Kevin Jewer]

By definition, speed density systems are completely unaware of any changes made to engine VE. VE is set in a VE table (if present) or accounted for in the fuel table and only pressure and rpm are used to determine fueling. Any changes to VE require a change to the VE table or fuel table to correct the final AFR back to where it was. A mass airflow sensor will measure any change in airflow within its range, even due to changes in VE, and will always provide the correct fueling with no additional tuning needed.

 

[Dsmkauai]

Hey Justin, do you know which turbo blanket might fit a hx35 in the .55 bep housing. Let me know thx

 

[Archer Fabrications]

Does anyone know the weight of the cast hx52 wheel? Billet 7 blade is 199 grams

 

[JusMX141]

Looks okay to me? What you think jus?

Looks good to me- the turbine seals weren't even leaking a drop on your core. Nice find.

When you get the parts kit with the new sealing rings, they go in with the end gaps each at 90* perpendicular to the drain and inlet; both end gaps facing 180* away from each other.

Hey Justin, do you know which turbo blanket might fit a hx35 in the .55 bep housing. Let me know thx

Zero experience, although I'd imagine any blanket for a DSM bolt-on turbine housing would work. It has to do with the width and diameter of the scroll, and the BEP housing is closer to being a 7cm Mitsu housing than a .82 T3 housing.

 

[gofer]

Yea. I've been eyeballing this one for my BEP housing, just haven't dropped the money on it yet.

PTP Turbo Blankets: DSM

 

[LandSpeed-DSM]

Engine has an Hx40

Install an Hx52 and you will be flowing more air per psi of boost and Im sure there will be less backpressure as the turbine housing is larger.

Engine VE will be changed everywhere and speed density isnt able to pick up these changes as easily as a mass airflow sensor can.

On re-reading this morning, I believe I misinterpreted what you were saying yesterday.

Sounds like we are on the same page.

 

[Archer Fabrications]

Justin what do you use to clean compressor and turbine wheels? Soda blast? Or soak in diesel. Sadly i dont have a soda blaster but i have bakin soda and a tooth brush! Guessing a stainless wire brush would be quite a bad idea so i havent done that.

 

[Archer Fabrications]

Looks good to me- the turbine seals weren't even leaking a drop on your core. Nice find.

When you get the parts kit with the new sealing rings, they go in with the end gaps each at 90* perpendicular to the drain and inlet; both end gaps facing 180* away from each other.


Zero experience, although I'd imagine any blanket for a DSM bolt-on turbine housing would work. It has to do with the width and diameter of the scroll, and the BEP housing is closer to being a 7cm Mitsu housing than a .82 T3 housing.

Humm looks like these sealing ri gs are all facing gap to the drain! I'll remedy that. Pix of bearings to come

Last snap ring is too far deep do you need special elongated incerte for the snap ring pliers?