LLY turbine housing swap with LBZ

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Deleted member 32467

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We have an LBZ turbo we need to pull while fixing a manifold leak and wonder if the spare parts we have for an LLY turbo will swap over.

This LLY turbo has it's own 10 vane turbine wheel with it, it was last ran 4 or 5 years ago and had a unique whistle to it. We sold off it's front half for a buddy who needed it more than we did back then and have had these parts on the shelf since.

Does anyone know if we can swap the 10 blade turbine wheel and the LLY exhaust housing onto/into this LBZ turbo?

Thanks
 
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henery97 said:
He's swapping the whole exhaust housing though. Are you planning on reusing the LBZ compressor housing & wheel?
Click to expand...

Yes.

I only want to swap the LLY housing and the turbine wheel onto the LBZ compressor side including the center cartridge.

The two turbines have the same measurements everywhere on the shafts. The LLY housing is sized for the 10 blade turbine wheel already.
 
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Deleted member 32467

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Vanes are all the same from LLY to LBZ, correct?
 
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Yes, my VGT vanes are .520 tall. Happy to hear the LLY vanes are wider.. it should be a small benefit to run the larger 10 blade turbine and the bigger LLY housing over the LBZ stock stuff.

Any real reason to run the "Fingers high flow vanes," since I have to replace our LBZ vanes for LLY's anyways? worth noting, I don't want to screw with my turbo brake functionality.

Will probably just source stock LLY vanes. This has been fun, but ready to be done with it.
 
Josh154

Josh154

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Sep 28, 2015
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mdemco said:
Yes, my VGT vanes are .520 tall. Happy to hear the LLY vanes are wider.. it should be a small benefit to run the larger 10 blade turbine and the bigger LLY housing over the LBZ stock stuff.

Any real reason to run the "Fingers high flow vanes," since I have to replace our LBZ vanes for LLY's anyways? worth noting, I don't want to screw with my turbo brake functionality.

Will probably just source stock LLY vanes. This has been fun, but ready to be done with it.
Click to expand...

I have fingers high flow vanes in my lly turbo and my turbo braking is just as strong as my stock lmm was.
 
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Deleted member 32467

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Ordered high flow vanes, we will try them out.

I also notice my LBZ exhaust housing is not "tall" enough for the 10 blade LLY turbine. Thus the wider vanes between LLY and LBZ. The "width" of the inducer blade on the 10 blade LLY turbine wheel is wider than the stock LBZ wheel.

When machinists make these 10 blade wheels work in a stock LBZ housing, they must have to cut the turbine wheel profile deeper into the exhaust port for the wheels height to clear.

What I noticed anyways, maybe helpful for someone else long term?

Regardless, I have an LLY housing, LLY vanes, and my LLY turbine to use on my LBZ front half. Should be a sweet little turbo.
 
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This ended up being more of a project than I figured, but the turbo is sitting back in the truck.

I ended up taking my stock LBZ turbo and adding:

A used LLY exhaust housing with a lot of port work
A new Garret 10 blade turbine wheel
High Flow Danville Vanes
A Danville sourced/specced 66mm Bullseye Batmo wheel with a Danville machined cover
Rebuild kit with 360 thrust bearing

The rebuild was not difficult. But after researching the subject to death, sourcing the parts, and putting it all together, I should have just bought a new turbo from Danville. Mark was awesome to deal with, I highly recommend him just as everyone else does. I flat out told him I like to tinker and wanted to see what could be built in my garage.

I also talked to Yellowchevy a couple of times, he was great as well and I would have used him initially, but he was very busy and I am impatient.

Anyways, hope she runs well, thank you for the advice!!

https://youtu.be/eyl-QUG1c1Y
 
minerigger

minerigger

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Dec 24, 2013
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Wish I had a fancy machine to do exhaust sides like that, die grinder and burr bit is effing work now.

The smiles per mile will be off the chart, miles per gallon may suffer on the other hand

Sent from my SM-G900V using Tapatalk
 
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minerigger said:
Wish I had a fancy machine to do exhaust sides like that, die grinder and burr bit is effing work now.

The smiles per mile will be off the chart, miles per gallon may suffer on the other hand

Sent from my SM-G900V using Tapatalk
Click to expand...

Seriously, I ground the LBZ housing first, by hand, before deciding to upgrade. About 8 hours of work!!

We think we are pretty cool and have been porting Banshee motors since we were in high school, luckily I had the right tools to make it easier, but still.

The LLY housing went in the mill and saved me HOURS. I ended up doing a lot more on the up-pipe portion of the turbo because I was not so burned out.
 
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