Recap and real world review of my LBZ Duramax 2003 Suburban conversion - Page 2 - Diesel Place : Chevrolet and GMC Diesel Truck Forums
 
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Old 10-21-2012, 09:21 PM   #11 (permalink)
skippie
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Well written Testdrive,

You definetly put the "testdrive" to these convertions. I think we've put about 20,000KM on our truck without a single hick-up, (Still have to drop front tank and look where leak is, as long as I dont put more then $80 in it it doesnt leak so I havnt worried about it) and I still havnt installed that parking brake cable I got off you...lol

96Sub, thats a nice looking rig you have. I beleave I still have enough UHMW if you needed a set of body spacers.


Skippie

P.s. if you make your way to Ontario Canada Testdrive you better stop in!
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Old 10-23-2012, 12:10 AM   #12 (permalink)
96Sub
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Icon7 Body mounts

Quote:
Originally Posted by skippie View Post
Well written Testdrive,

You definetly put the "testdrive" to these convertions. I think we've put about 20,000KM on our truck without a single hick-up, (Still have to drop front tank and look where leak is, as long as I dont put more then $80 in it it doesnt leak so I havnt worried about it) and I still havnt installed that parking brake cable I got off you...lol

96Sub, thats a nice looking rig you have. I beleave I still have enough UHMW if you needed a set of body spacers.


Skippie

P.s. if you make your way to Ontario Canada Testdrive you better stop in!

Thanks. Unfortunately the big chrome wheels are likely going away since the offset is incorrect and the front tires rub even with the lift.
The body lift will be reduced to close up the gaps at the bumpers and tow hitch.
I was thinking of using Delrin for the mounts but I don't have enough material. UHMW is as good in this application and since you should still have all the dimensions. We can make a deal on material only or complete spacers if you have the time.
PM me with an estimate pls. Thanks.

I should ask Eric TDIguy how he was doing the export Duraburbs with no body lift at all.....I've searched the archives but not found anything substantial.
Cheers
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Old 11-25-2012, 12:07 AM   #13 (permalink)
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Glad to see your happy with her, and that tune is working for you.
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Old 11-27-2012, 09:22 AM   #14 (permalink)
testdrive
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Quote:
Originally Posted by THEFERMANATOR View Post
Glad to see your happy with her, and that tune is working for you.
This is the time of year one year ago that I started this build so the memories come back strong.
Without the inspiration and help from the Duramax Suburban Brotherhood, I would have never attempted this. To Eric (theTDIguy) and thefermator, you two made the big difference between just a ordinary build and a great one . Boisebiker, CDN111, Skippie and all the others that gave suggestions and ideas... again thank you.
I drove it to Dallas without any trailer last week and averaged nearly 20 MPG and that included 120 miles of town driving. Total trip was 880 miles and we drove much of it at the legal 75 MPH.
Even with nearly 22K miles logged, I am very happy with the conversion. It is just more fun to drive whether pulling a trailer or driving solo. Very responsive at any speed. As I mentioned before, it exceeds all expectations.
The EFI tuning is a real bonus. This summer I pulled a 8K load 12K miles and much of that was through the western US rockies and Canadian rockies, all the way to southeast Alaska. High mountain passes were an everyday adventure. The turbo brake feature removes the run away feeling when descending the steep 7 - 21% grades with hair pin turns. I rarely had to use foot brakes. Also there was no jacking with the shift lever, just run in towhaul mode. It provided a much more comfortable and controlled decent. I could even get a better look at the scenic vistas. When the turbo brake becomes active, it's like I just threw an anchor with a chain out. It's magic. On the flat level roads, I used the daily driver/mileage position.
The EFI tuning also allowed the dual fuel tank system to be seamlessly integrated, just as it was from the factory.
Fuel savings amounted to 5 MPG per gallon or more, over the 12K miles, that is a lot of savings in dollars.

The Suburban was also a working trunk for 2 months.
In this trim, with driver, passenger,fuel and cargo, the weight on the scale is 8400lbs. This about 900lbs more than the 8.1L and two wheel drive. The Michelin XPS tires each are 20lbs more, 20 X 5 = 100lbs on the total. Then the 4 wheel drive and the Allison combo is ~800lbs more weight. Hope that all makes sense...
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Recap and real world review of my LBZ Duramax 2003 Suburban conversion-suburbanloaded.jpg  
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2003 Chevrolet Duramax Suburban K2500
powered by a 2007 LBZ Duramax Diesel
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Michelin XPS Traction LT235/85R16
EFI DSP5 tuned thanks to
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Last edited by testdrive; 11-27-2012 at 09:44 AM.
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Old 11-28-2012, 05:36 PM   #15 (permalink)
HaaRubicon
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Great write up as usual. Testdrive has also helped others on this site including me. I to was one of those frustrated RVr's screaming up the Colorado Rockies in second gear waiting for something to explode, but those days are gone. Now to move on to a newer body style, that way the wife and I can both have one. Like Testdrive, ours is the wifes daily driver when we are not towing the 35' TT. She loves it. makes her feel invicible, shes the queen of the road in her bad to the bone kids coach and grocery getter.



So, cheers to testdrive, his build, his encouragement to others and his continued epic adventures that all us poor working stiffs are hoping to have one day.
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Old 11-28-2012, 09:42 PM   #16 (permalink)
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Amen.
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Old 12-31-2012, 04:45 AM   #17 (permalink)
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That 06/07 front clip looks great on that vehicle. I can imagine the people talking about it (looks factory installed).
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Old 03-13-2014, 10:29 PM   #18 (permalink)
GoneNomad
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I just ran across this, thought it was a great recap, but noticed there's no link to the original build-up thread:
I've got a Frankenstein in my future

Now there is.

Last edited by GoneNomad; 03-13-2014 at 10:30 PM.
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Old 03-31-2014, 11:03 PM   #19 (permalink)
phester
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1999 K2500 Suburban conversion

I'm wanting to do a Duramax engine conversion on my Suburban.

Is there a certain year that would make the job easier or does it really matter?
What are the biggest hurdles I can expect to encounter during the conversion?

Thanks,
Paul
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Old 04-01-2014, 02:52 AM   #20 (permalink)
damutt
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what year burb do you have now?
IIRC 05 there was a huge wiring change
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