Porting/Polishing LLY Turbo

RickDLance

Active member
Feb 14, 2007
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The Blue Springs dyno is out of operation right now. Anyone have more info on the Lees Summit one?
 

NAFLASH

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Aug 22, 2010
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Good write up. I just started porting an lly turbo for my lmm. I still have to clean the up pipe side but for the most part its done. Then ultra sonic clean everything and reassemble with fingers veins and batmo. I'm looking forward to the results and also seeing how it runs with Efi live. I'll post pictures tomorrow.
 

yellowchevy

Well-known member
Sep 9, 2010
1,926
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Louisburg, KS for now
Good write up. I just started porting an lly turbo for my lmm. I still have to clean the up pipe side but for the most part its done. Then ultra sonic clean everything and reassemble with fingers veins and batmo. I'm looking forward to the results and also seeing how it runs with Efi live. I'll post pictures tomorrow.

Good deal :thumb:.
You're going to love how it sounds and takes off. Throw them up here when you get done.

Yellowchevy
 

Black6spdZ

New member
Aug 7, 2009
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Good write up. I just started porting an lly turbo for my lmm. I still have to clean the up pipe side but for the most part its done. Then ultra sonic clean everything and reassemble with fingers veins and batmo. I'm looking forward to the results and also seeing how it runs with Efi live. I'll post pictures tomorrow.

also working on an lly for my lbz, doing lml manifold, lb7 up-pipe, 3" downpipe and full egr delete while I'm in there. Hope its a worthwhile upgrade. Take some good pics of your port work.. I'm interested
 

NAFLASH

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Aug 22, 2010
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yellowchevy

Well-known member
Sep 9, 2010
1,926
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Louisburg, KS for now
also working on an lly for my lbz, doing lml manifold, lb7 up-pipe, 3" downpipe and full egr delete while I'm in there. Hope its a worthwhile upgrade. Take some good pics of your port work.. I'm interested

Port/polish that LML before you install it. Take the passenger side off to and do the same.

You should be happy with your efforts.

Yellowchevy
 

NAFLASH

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Aug 22, 2010
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I didn't have a way to accurately measure it but its sitting somewhere aroun 2.8in I.D. Ill get a better measurement tomorrow.
 

NAFLASH

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Aug 22, 2010
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Some better pictures. I'm really concerened about the surface that the vanes move on. The coating is in pretty bad condition. Thoughts??uploadfromtaptalk1391989908898.jpguploadfromtaptalk1391989923455.jpg
 

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Dozerboy

Well-known member
Jun 23, 2009
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TX of course
Is there a real coating? I think the ford guys are going over everything with a die grinder to remove the carbon and rust.

Man ya'll are giving me ideas.
 

yellowchevy

Well-known member
Sep 9, 2010
1,926
82
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Louisburg, KS for now
There's no coating on that surface. On all the turbo's I've taken apart I've never seen a coating; steel on steel.

Remove all the rust you can & try smooth it out with a flap wheel; do so without remove to much material so you don't screw with air flow.


NAFLASH,
Did you open up the whole exhaust side? You may have trouble spooling the turbo now being you changed the air flow characteristics on the discharge of the turbine wheel; meaning you'll loose alot of air between the turbine wheel and exhaust housing. I have no proof of this but it makes sense in my mind, haha.

Man ya'll are giving me ideas.

Everybody's doing it:D
Yellowchevy