Twin scroll turbo

[chris96]

Hi all, I have got my hands on a large holset turbo of a 16 litre volvo truck and noticed it is twin scroll. Is it possible to use on a turbo jet and if not why?.
Thanks

[racket]

Yes , you can use it

[chris96]

Jul 27, 2022 6:07:26 GMT -5 racket said:

Yes , you can use it

Thanks. Im hoping to eventually make a reheater and mount it to a gokart aswell, but thats a long way down the line as im still learning a lot.

[chris96]

hi i have some messurements of the turbo 
its a holset he500wg of a volvo truck
sizes +/- 1mm
compressor inducer 73mm
                 exducer 107mm
turbine inducer 83mm
           exducer 79mm


photo of the exhaust housings markings. There was one more marking of "25" inside the flange of the exhaust housing 


can anyone let me know if it is a good pick and
really hope this turbo is an acceptable size/configuration.

thanks.

[racket]

Hi Chris

Are there " variable controls" on that turbo ??

Comp inducer to turb exducer area ratio looks OK at ~17% larger , its a tad smaller than desirable , but OK :-)

Cheers
John

[chris96]

Thanks john

No variable control on the turbo.
Just did a quick google as i have never heard of it before today
Pretty interesting stuff.

[finiteparts]

Chris,

In case you didn't know, the 25 stamped on the inside of the turbine housing is how Holset sizes their turbine housings. They actually give you the flow area of the inlet flange in cm^2, which helps with calculations.

- Chris