First Turbine Build

[ozzy]

Hello everyone!

Need some help from the forum to build my first turbocharger based jet engine. My idea is to build a jet engine with a free power turbine with an output of ballpark 100-200shp.

I’ve been recommended the Garrett TV94 turbo. Anyone know other similar turbos that would suit this project? (I’m situated in northern EU, not many TV94 around on eBay)

What’s the best way to do the calculations? I’ve seen some of you are using “jetspecs”.

I was planning to run it on kero or diesel, is a gas start system needed?

Never built an engine like this before, thankful for all the tips and tricks I can get :-)

Thanks in advance!

[racket]

Hi Ozzy

Maybe a HX82 turbo with a >90mm comp inducer .

Cheers
John

[Johansson]

A HX82 is a better choice than the TV94 that I recommended via PM, bigger and more thrust.

You can go pretty fast with a TV94-based engine though.



/Anders

[Bhuvan Aerospace]

Ya, I agree with Racket, use 90mm inducer turbo.

[bhuvanaerospace1]

Yea, I also suggest with them...but You can customise according to your requirement to a surtain limit...And I hope your project will be One of the most successful one...Good luck👍...

[Johansson]

Am I witnessing the most obvious case of double accounts in Internet history? When agreeing with yourself it is a good idea to pick a less similar username.

[ausjet]

HX82 and 83s come in heaps of different variants. You ideally want a non water cooled version (Water cooled centre housings are heavy) also look for an open turbine housing inlet with a short turbine outlet housing.
The holset HC5A is the predecessor to the HX82 I believe, which also is a good turbo to go with.
The turbo you end up with will determine your oil flow requirements. Just google the manual/specs for your turbo to get the flow rate required then add on some for a bit of head room.
You can start straight off liquid fuel if you use a hot surface igniter positioned correctly in the flame tube. I can’t speak for doing so off spark ignition as I have no experience in that. I’d assume this is where the start off propane and switch to liquid comes from.
Obviously works in commercial jet engines but they also have insanely powerful ignition systems.