Duramax Diesels Forum Truck of the Week
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Old 05-26-2018, 09:50 AM
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Default Anyone running a Duramax Tuner 67G2??

My built long block is underway so looking to get 800rwhp on fuel only or very close. On their site and from what Iíve read seems this might be a good turbo to run on the street and still tow some etc ??

I like the idea of being able to use stock location and all my current WCF piping etc. Iíd like to have a good setup that will support around 800hpbon fuel and then be able to spray it to 950-1000hp.


Iím open to suggestions or ideas.
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Old 05-26-2018, 04:54 PM
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Josh (chaves91) played with one in testing. It runs hard but itís laggy compared to stock. You can tow on a box stock s472 too, just need rpm to do it. Waiting on him to quit dicking around with fords before he does a spool test
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Old 05-27-2018, 09:58 AM
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Quote:
Originally Posted by Chevy1925 View Post
Josh (chaves91) played with one in testing. It runs hard but itís laggy compared to stock. You can tow on a box stock s472 too, just need rpm to do it. Waiting on him to quit dicking around with fords before he does a spool test
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You come off as a Timeshare Condo salesman on this site.

If you were helping folk with problems, or asking for input on your problems, it might be different, but from where I see, you are only a little different than the Russian spammers selling iPads that we delete.

Act like more of a human, and less like a spambot, and you'd probably catch less heat. This is "family", and it's our corner bar, and a group of guys with grease all over them leaning over fenders of somebodies truck that ain't making the right boost.

It's also one of few sites with more hardcore wrenches and racers than wannabees.

You're welcome to be a member here, and post about your build, but don't expect people to shower you with roses yet. That comes with seat time on the site, and on the track.
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Old 05-27-2018, 12:05 PM
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I’ve been contemplating making this same move on my chevelle, to the DT67.7. Diesel technology source (DTS) makes one as well, 67.7 in a stock looking ihi and they claim over 800rwhp as well. Also states that it spoils just as fast as stock if not faster.... I’d like to be around 800rwhp but have very little info on either one of these..... maybe a few other will chime in on their experience.
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Old 05-27-2018, 01:00 PM
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Would love to see track times back up there claims. Look at Katies truck. Blew up social media with her twin set up claiming 1000+ hp. But track slips beg to differ. Both companies above are a joke.
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Old 05-27-2018, 01:58 PM
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That’s what I’m afraid of, all talk and no actual performance. I’m not 100% where I am as far as rwhp with my current combo but do have a consistent 10.90 car @122. I’d like to see that improve and think an extra 200rwhp would be significantly noticeable. It spools fast now but just doesn’t charge on top as I would like it too.
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1970 Chevelle Duramax Hot Rod, '04 LB7/TH400-gear vendor, S475/factory IHI, 65% inj, 10 mil pump, SoCal AF cam, Valve springs, Push Rods, LBZ rods..... 10 sec cruzer :-)

2002 2500HD LLY swap 5-24-15.
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Old 05-27-2018, 04:11 PM
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I can tell you they will not spool as fast as stock, thatís a fact. Iím just curious how close it is though
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Mike L is my role model. I want to be like him when I grow up.
James

02 LL7 2500HD CC/LB dmax/alli "The Limo"

BIG THANKS TO: Mike L, Steve, Trent, Guy, Dan, Ruben, Josh H, Scott, Brian and everyone else who has put a hand in to help me.

best time to date: 12.39

motor died/bent rods = 3/11/11
back from the dead 7:04pm 4/9/2012

Limo is back in the garage, now driving a built chevy tracker
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Old 05-27-2018, 04:45 PM
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Quote:
Originally Posted by rfletes79 View Post
Thatís what Iím afraid of, all talk and no actual performance. Iím not 100% where I am as far as rwhp with my current combo but do have a consistent 10.90 car @122. Iíd like to see that improve and think an extra 200rwhp would be significantly noticeable. It spools fast now but just doesnít charge on top as I would like it too.
Why not port and polish your IHI and change your 75 to an 80. You will spool much better and if you port the wastegate itíll feed the big turbo better
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Old 05-27-2018, 05:11 PM
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Originally Posted by gmduramax View Post
Why not port and polish your IHI and change your 75 to an 80. You will spool much better and if you port the wastegate itíll feed the big turbo better
I have pnp housings and billet compressor wheels (on both turbos). Not opposed to the 80, just looking for the best bang for the buck, you know.
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1970 Chevelle Duramax Hot Rod, '04 LB7/TH400-gear vendor, S475/factory IHI, 65% inj, 10 mil pump, SoCal AF cam, Valve springs, Push Rods, LBZ rods..... 10 sec cruzer :-)

2002 2500HD LLY swap 5-24-15.
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Old 05-27-2018, 05:22 PM
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I'm pretty sure there is a video of them running the g2 in the old square body Chevy. Think it was low 12's.

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Old 05-27-2018, 05:23 PM
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Quote:
Originally Posted by Ne-max View Post
Would love to see track times back up there claims. Look at Katies truck. Blew up social media with her twin set up claiming 1000+ hp. But track slips beg to differ. Both companies above are a joke.
My expirences with Duramax tuner have been positive. The one expirence I have with the other was not so much, clearances for trans kit were scribbled on a piece of note book paper and were WAY off. Converter was questionable enough builder said come get it and bring me a real kit... Lol...
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Old 05-27-2018, 05:27 PM
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Quote:
Originally Posted by rfletes79 View Post
I have pnp housings and billet compressor wheels (on both turbos). Not opposed to the 80, just looking for the best bang for the buck, you know.
You matched the turbine ports to the up pipes? If so you will probably get a lot more lag with an aftermarket turbo.
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Old 05-27-2018, 06:11 PM
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Originally Posted by gmduramax View Post
You matched the turbine ports to the up pipes? If so you will probably get a lot more lag with an aftermarket turbo.
Yes, yellowchevy did that for me a few years ago. Turbine housing ported, up pipe entries, wastegate and compressor housing.
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1970 Chevelle Duramax Hot Rod, '04 LB7/TH400-gear vendor, S475/factory IHI, 65% inj, 10 mil pump, SoCal AF cam, Valve springs, Push Rods, LBZ rods..... 10 sec cruzer :-)

2002 2500HD LLY swap 5-24-15.
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Old 05-27-2018, 06:39 PM
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Quote:
Originally Posted by rfletes79 View Post
Yes, yellowchevy did that for me a few years ago. Turbine housing ported, up pipe entries, wastegate and compressor housing.
Youíll hate any aftermarket spool wise
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Thanks to Mike L, SoCal Diesel, and Abel Chevorlet.

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Old 05-28-2018, 08:30 PM
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Quote:
Originally Posted by Chevy1925 View Post
Josh (chaves91) played with one in testing. It runs hard but itís laggy compared to stock. You can tow on a box stock s472 too, just need rpm to do it. Waiting on him to quit dicking around with fords before he does a spool test


Gotta make them 17 -18 Fords Full Fuel. Definitely was one fun project.

You're gonna be impressed with the data James. Got the Stock LLY spool numbers the other night. Now to just process the data to spreadsheets and you can drool over them.
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