notjet
Junior Member
switzerland sure doesnt like selling large piping in my area ._.
Joined: October 2022
Posts: 54
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Post by notjet on Nov 13, 2022 14:34:09 GMT -5
Wait did the Proboard server also just die for you guys or is that a local issue im having?
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Post by racket on Nov 13, 2022 15:23:18 GMT -5
Hi Neo
More info on the HX35 specs please
Cheers John
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notjet
Junior Member
switzerland sure doesnt like selling large piping in my area ._.
Joined: October 2022
Posts: 54
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Post by notjet on Nov 13, 2022 15:38:27 GMT -5
Hi John, It has a 54x78 mm compressor and a 60x70 turbine wheel and a twin scroll turb housing... apart from that and the image alone i couldn't really find anything. oh yeah and the turb scroll seems small on all of them tho ive read about several succesful builds
Cheers, Neo
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Post by racket on Nov 13, 2022 15:46:36 GMT -5
Should do the job :-)
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notjet
Junior Member
switzerland sure doesnt like selling large piping in my area ._.
Joined: October 2022
Posts: 54
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Post by notjet on Nov 13, 2022 15:53:29 GMT -5
Hi John, Perfect! I guess you guys will have an interesting build thread soon lol already looking forward to the first spoolup!
Cheers, Neo
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notjet
Junior Member
switzerland sure doesnt like selling large piping in my area ._.
Joined: October 2022
Posts: 54
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Post by notjet on Nov 14, 2022 6:05:19 GMT -5
Hi John, I have a final question before i start buying all materials: I want to run a twin combustion chamber setup to make it more compact and was wondering how the math behind that works, since it isnt as simple as just halving the sizes jetspecs gave me right? The two combustion chambers would be orientated axially in line with the turb outlet but then a little more to the side. The two combustion chamber outlets would feed into the twin scroll turb housing, each its own scroll
Cheers, Neo
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praendy2203
Veteran Member
Joined: August 2020
Posts: 160
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Post by praendy2203 on Nov 14, 2022 9:19:19 GMT -5
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notjet
Junior Member
switzerland sure doesnt like selling large piping in my area ._.
Joined: October 2022
Posts: 54
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Post by notjet on Nov 14, 2022 13:50:05 GMT -5
Hi Andy,
Yes ill look at the turbo with the things he said in mind, but ill stick to the Forums way of making flametubes (ofcourse a twin combustion chamber is maybe different but that probably something racket can answer)
Cheers, Neo
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Post by racket on Nov 14, 2022 17:38:42 GMT -5
Hi Neo
If you want twin combustors , simply find the inducer area of the turbo , divide by 2 and workout a new diameter .
Say your new turbo has a 60 mm inducer , 2827 sq mms , 2827/2 = 1413 sq mms , 1413 sq mms = 42.4 mm dia inducer , so 73.5mm ID for each flametube by say 220 mm long
You really don't save a lot of volume as a 60 mm inducer would have a 104 mm ID flametube and say 300 mm length , the single combustor would probably be more efficient and certainly easier to make only one rather than two of everything , a twin system would need to be carefully designed so that there is "equality" of air delivery , fuel delivery etc etc .
Cheers John
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Post by madpatty on Nov 14, 2022 20:21:05 GMT -5
Hi Neo. I have used HX35 in several of my projects without issues.
It’s a good turbo with lot of spare parts very easily available.
You could even fit a HX40 turbine wheel later if you’d feel like, that also uses the same CHRA as HX35. All you would have to do is replace the turbine housing.
Cheers and All the best. Patty
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notjet
Junior Member
switzerland sure doesnt like selling large piping in my area ._.
Joined: October 2022
Posts: 54
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Post by notjet on Dec 11, 2022 16:00:38 GMT -5
That looks just like the little VNT turbos that come off the Volkswagon's. I have one and always wanted to make a tiny engine and play with the variable nozzle, which is super easy to control on that little guy since it is on a lever that is outside the turbine housing. A/R won't matter on that one, since it is a VNT. With the VNT, I am sure you will be able to find a combination that works, as long as you have a very well behaved combustor and don't let hot streaks damage the VNT vanes, which are super thin and likely pretty susceptible to thermally induced damage. Good luck, Chris Theoretically that could be used on a single shaft setup to regulate shaft power output right?
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