2006 holset he351 "they've grown"

[larryB]

I bought another Holset HE351 off ebay, it's supposed to be the factory turbo off a 2006 dodge diesel. The compressor housing looks the same as the older ones with the 90 degree angled outlet. But it looked bigger so I dug out an older he351 (2003) and set them side by side. The compressor housing is definatly larger and so is the compressor wheel. Here are some rough measurements of the compressor wheel size. These measurements are not exact but they are taken from the same points on both wheels.

2006 HE351 2.31 inducer 3.3 exducer 1.25 tall
2003 HE351 2.16 inducer 3.0 exducer 1.16 tall

The hot side wheel measures the same on both and other than a thicker t3 flange the turbine housing looks the same size.
Sorry if this is old news but it's new to me. I'll try to post some pictures tomorrow after work.

[BadAssPerformance]

Wow, thats a pretty big difference in size! Sure they are both HE351's?

[larryB]

Wow, thats a pretty big difference in size! Sure they are both HE351's?

Not 100% sure. I bought it as a 2006 HE351. It looks just like the older ones. Maybe they have a new model number for the 2006 model.

[larryB]

Here's a few pictures:

[BadAssPerformance]

Wow, there's definitely a difference. I cannot believe that they have teh same part number with that much. Wallace knows the Holsets, maybe he knows for sure? Is the turbine side larger too?

[larryB]

Wow, there's definitely a difference. I cannot believe that they have teh same part number with that much. Wallace knows the Holsets, maybe he knows for sure? Is the turbine side larger too?

Turbine side is the same on both just a thicker flange on the newer one, still 9cm. The turbine wheels are the same size on both. The part number on the older one was on the wastegate actuater. I didn't get the actuater with the 2006 turbo.

[Ondonti]

probably why my friends new cummins seems to get away with a lot more power then I think should be possible with a programmer.

[turbovanman²]

I know its old but the smaller one is an HE341, larger one HE351, you can tell as the 351 has an electric boost thingamajig on the compressor housing.

[440dart]

the 351s come on the "600" engines

[turbovanman²]

the 351s come on the "600" engines

?????????

[440dart]

?????????

they called them the 600 engines as it was a big deal back then that they come with 600ftlbs

[turbovanman²]

they called them the 600 engines as it was a big deal back then that they come with 600ftlbs

Gotcha, never heard that before, lol.