Duramax Diesels Forum Truck of the Week
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Old 11-01-2018, 09:07 PM
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Default LB7 upgrade turbo's

Seams there are a few new ones making there way around anyone try these?

http://stores.customracingturbos.com/dmax-lb300-63mm/
http://www.godspeedturbo.com/product-p/gstrh-2.htm

The waste gate arm broke on mine the other day and I have a lot of time building my twin kit it's all stainless and I don't feel like building another to go to a non factory setup. So I'm thinking on a upgrade turbo and was just curious about these, I likely will just weld up the wastegate arm though first.
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04 LB7 ECSB Built motor, Wagler billet narrowed Rods, Callies billet narrowed journal crank, Mahle Race Cast pistons, Randy's Girdle, Wagler/Callies Stage 1 alterfire cam, Exergy 100% SAC's, dual CP3's, Randy's race ported heads, Profab cast flow/up pipes, and S475 over a DTS 67.7
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Old 11-01-2018, 09:34 PM
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Thankfully the flange I used kept the wastegate in the gate pocket of the turbo or i would be getting two turbos.

Sent from my SAMSUNG-SM-G891A using Tapatalk
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04 LB7 ECSB Built motor, Wagler billet narrowed Rods, Callies billet narrowed journal crank, Mahle Race Cast pistons, Randy's Girdle, Wagler/Callies Stage 1 alterfire cam, Exergy 100% SAC's, dual CP3's, Randy's race ported heads, Profab cast flow/up pipes, and S475 over a DTS 67.7
2010 LMM CCLB-Tuning/Exhaust
2015 LML Cab and chassis- Tuning/Exhaust
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Old 11-17-2018, 11:14 PM
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Ordered a DTS 67.7 hoping it turns out to be decent, just couldn't really justify a 63-64 drop in as a upgrade for the cost of them. I wanted something with more than just a compressor upgrade that had a bigger turbine. Guess it's time to start looking for a another big brother for it.
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04 LB7 ECSB Built motor, Wagler billet narrowed Rods, Callies billet narrowed journal crank, Mahle Race Cast pistons, Randy's Girdle, Wagler/Callies Stage 1 alterfire cam, Exergy 100% SAC's, dual CP3's, Randy's race ported heads, Profab cast flow/up pipes, and S475 over a DTS 67.7
2010 LMM CCLB-Tuning/Exhaust
2015 LML Cab and chassis- Tuning/Exhaust
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Old 11-18-2018, 06:27 AM
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Those new 67.7 IHI's are making good power and reliable. The compressor housing is actually a new high flow casting.

IMG_4697.jpg
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Special thanks to:
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- Suncoast transmission's, Andrew.
- Wehrli custom fab, Jason.
- Profab, Rick
- Turbo performance, Levi.
- HSP, Joe and Dave.
- SoCal diesel.
- Wagler competition, Jeramy.
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Old 11-18-2018, 06:47 AM
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Zak, how do these compare to the sxe300 series?
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Old 11-18-2018, 08:16 AM
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The Godspeed guy got bought out by Dans Diesel performance, I called Godspeed couple weeks back it was DDP and they don't appear to be doing them the same way, just another 64 but supposedly it's a brand new IHI they used so no core. It did not appear they had any other options like Godspeed, he had SXE center sections in his 63 up to a 72 and you had a choice of turbines 67 or 73, his website no longer comes up now. I imagine the midwest guys would do anything you ask probably.
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04 LB7 ECSB Built motor, Wagler billet narrowed Rods, Callies billet narrowed journal crank, Mahle Race Cast pistons, Randy's Girdle, Wagler/Callies Stage 1 alterfire cam, Exergy 100% SAC's, dual CP3's, Randy's race ported heads, Profab cast flow/up pipes, and S475 over a DTS 67.7
2010 LMM CCLB-Tuning/Exhaust
2015 LML Cab and chassis- Tuning/Exhaust

Last edited by rcr1978; 11-18-2018 at 08:24 AM. Reason: Mispeeler
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Old 11-18-2018, 09:12 AM
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Quote:
Originally Posted by TheBac View Post
Zak, how do these compare to the sxe300 series?
From what I've been told that the S300 turbine does not sit in the IHI turbine housing ideal, that the new bigger IHI turbines flow better. Pretty much everyone selling the 67.7 IHI's are all buying them as new super cores from the same place and just machining the IHI turbine housing to fit the bigger turbine wheel.
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2011 CHEVY 2500HD CCSB Duramax/Allison LTZ

2005 CHEVY 2500HD RCLB 2WD Duramax/Allison

2002 GMC 2500HD RCLB Duramax/allison 2.6 puller
Special thanks to:
- Danville performance, Mark.
- Suncoast transmission's, Andrew.
- Wehrli custom fab, Jason.
- Profab, Rick
- Turbo performance, Levi.
- HSP, Joe and Dave.
- SoCal diesel.
- Wagler competition, Jeramy.
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Old 11-18-2018, 08:10 PM
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I ran a DTS Built IHI for two years until I upgraded to a s400. Loved the dts charger and the customer support David offered with it was next to none.
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Old 11-19-2018, 06:50 AM
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Quote:
Originally Posted by duramaxzak View Post
From what I've been told that the S300 turbine does not sit in the IHI turbine housing ideal, that the new bigger IHI turbines flow better. Pretty much everyone selling the 67.7 IHI's are all buying them as new super cores from the same place and just machining the IHI turbine housing to fit the bigger turbine wheel.
That's good to know i'm glad I went a different route then I was pretty much dead set on one with a SXE center section.
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04 LB7 ECSB Built motor, Wagler billet narrowed Rods, Callies billet narrowed journal crank, Mahle Race Cast pistons, Randy's Girdle, Wagler/Callies Stage 1 alterfire cam, Exergy 100% SAC's, dual CP3's, Randy's race ported heads, Profab cast flow/up pipes, and S475 over a DTS 67.7
2010 LMM CCLB-Tuning/Exhaust
2015 LML Cab and chassis- Tuning/Exhaust
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