Very interesting considering its Garrett specs that put it at a 61.4x82 mm comp wheel. You can't have a 59.1x82mm wheel with a 56 trim, thats a 52 trim. The stage 2 is supposed to run a 56 trim wheel.

I have heard many different things on the Stage 3 as a single, but the biggest thing is that is likes to surge at lower flow/boost, which doesn't work for my application.

EDIT: Okay I just went and called Tom at Turbo Resource. His data showed 59.1 for Stage 2, but he looked at the literature and agreed that it should be 61.4, so he went and measured one, 61.4x82. So the stage 2 is a 61.4x82mm comp wheel.

 

Your turbos might be getting mixed up then. If you get a Stage 3 instead of a stage 2, you might also get a stage 1 instead of a 2.

Whats the diameters of the wastegates?

 

holmen your a bad influence, id actually stopped wanting a set of twins, then i saw that pic. Now im asking myself how much that would cost...

 

You getting a garrett turbo for a 3rd gen or 2nd gen? They have a different compressor housings, this turbo is for a 2nd gen. The 3rd gen has the 90deg elbow cast right into the compressor housing. Best is to go off the model number to give you the exact spec.

Tate, hopefully you remember, that you and I measured both your GT3782R and mine. I originally thought they were 61.5mm, but we measured 59.5mm. The stage 3 has a slightly higher flow 63.5mm 7 blade impeller and the 1&2 have the six blade. I have not measure the exducer of this compressor yet, but have measured the inducer size. I've must have owned four or five of these GT37 now, each time I get one they are slightly different. I honestly think its a tagging issue on the box. I got a garrett GT3582R and it was in a GT3571R box.

 

The housing is different, but the comp wheels are supposed to be the same, but I guess they could be different? Not that it really matters... back on topic :-)

 

Garrett doesn't spec out the diesel performance line to well. The borg warner stuff is very comparable to the garrett, I just like the quick spool-up of the garrett. The borg warner stuff seems to flexible in its configuration.

Found a decent 68mm inducer mid size frame turbo. There hasn't been to much available until borg warner released its new EFR line.
http://www.full-race.com/store/turbo...180-turbo.html

I want one for my 2010 truck. Should work really well as a single or in twins. Has a built in blow-off valve, for you stick guys. Its 95lbs*min, and would be a wickly sick with a 4718R.

No worries I like talking about turbos alot, I learn something new everyday. Today, I learned that there is a new ceramic turbine wheel become available.

 

Do tell on the ceramic wheel!

 

Ceramic turbine wheels are good for heat issues but didnt they have problems with balance, pitting, small debre, shattering, high speed etc? Somewhat fragile. Would really have to have come a long long way to be reliable in big bad diesels.
But maybe they have, Mike?

 

This turbo was for a fork lift. I was there just watching. I guess that the ceramic turbine don't last long as the inconel. Like you stated they have issues.

 

Glad to see them twins taking shape. It was worth the drive across the border for this setup. Tweak on!!

 

Did we decide if the exchanger was moving up front?

 

Probably will have to move the heat exchanger, just easier that way. I was originally thinking about doing it a different way, but...

 

but... hydraulic lines over stainless lines right?

 

but...stainless lines vs. hydraulic lines right?

 

You'll never wear out the hydraulic lines. I can also do stainless, if you want. I'm running heater hose on my truck, been there for five years now.