For Sale Holset HX40 16cm T3 650bhp+ Turbo - Rare 60mm Billet Compressor Wheel

Nite_Shayde

Nite_Shayde

Active Member
For sale is a used Holset HX40 with the following specs:

- 60mm billet inducer, 86mm exducer 7+7 blade compressor wheel (largest factory HX40 compressor wheel available)
- 76mm inducer, 64mm exducer 12 blade turbine wheel
- 16cm T3 internal wastegate turbine housing (will need welding shut)

Could do with a proper clean or freshening up - turbine housing has rust as you can see, but that's cast iron for you, always inevitable. The (factory) paint on the compressor housing doesn't look great anymore, and there's some corrosion present on the once shiny aluminium areas. Part of the compressor outlet flange is a bit mangled, so will need sorting or simply cutting off and a new flange/elbow welded directly on. It's an honest used turbo though, not just blasted from top to bottom and made to look good (but actually junk) like turbos from a certain other seller...

No axial play in shaft. Minor radial play (typical and very normal). No damage to compressor wheel or turbine wheel. Spins freely.

Would like to get £285 plus postage for this.

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Jay1017 said:
Looks like a cast compressor. The nose diameter is fucking enormous
Click to expand...

It's billet. Manufacturers have two options when it comes to billet compressor wheels. Either manufacture the billet compressor wheel in the same profile as their standard cast one and reap the strength benefit, or take advantage of (forgo) the inherent increase in strength and cut down on excess material where possible (reduce hub diameter, thinner blades). Holset take the former approach, so their billet (MFS as they term it - 'Machined From Solid') compressor wheels are actually stronger than their cast counterparts, designed for absolute maxmum durability in extreme applications (high duty cycles).
 
Nite_Shayde said:
It's billet. Manufacturers have two options when it comes to billet compressor wheels. Either manufacture the billet compressor wheel in the same profile as their standard cast one and reap the strength benefit, or take advantage of (forgo) the inherent increase in strength and cut down on excess material where possible (reduce hub diameter, thinner blades). Holset take the former approach, so their billet (MFS as they term it - 'Machined From Solid') compressor wheels are actually stronger than their cast counterparts, designed for absolute maxmum durability in extreme applications (high duty cycles).
Click to expand...

yeah I know, didn’t know about holset still utilizing the same design. Effectively making a slower spooling turbo due to the increased mass using billet allu.

Good for big boost reliablity tho
 
In theory yes, but as with most tuning theory, this just isn't the case in reality. There's nothing in it really, weight difference would probably be a gram or two, if that. In other words, it won't slow spool at all. Of far greater importance to spool is the turbine and turbine housing size. Straight from Holset/Cummins:

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Yes, good for big boost/high hp builds, or just simply ensuring max reliability in any case - these things are built incredibly well. The amount of money, time and effort spent on R&D in the OE world to minimise failures is simply eye-watering.
 
I made an account just to reply to this thread lol. Im interested, please email me at diesel25bomber@gmail.com. going to need it shipped, hopefully you can work with me on price/postage, from across the pond in America. Bought an hx40 from a guy and he hid the fact it was missing 3 turbine fins and won't give money back.
 
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