06-07 LBZ Performance Discussion of Chevy and GMC Trucks with LBZ Duramax Turbo Diesel Engines Related To Performance And Longevity

Twins or just bigger Turbo

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  #1  
Old 02-02-2009, 07:02 PM
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Default Twins or just bigger Turbo

I know twins are good for everything.... But would i be better off with just a bigger single turbo? I do tow a TT33ft 12K and a 14ft 6K trailer. So any help would be great.Thx
Also Not a built motor but what needs to be upgraded...Head studs????
 
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Old 02-03-2009, 12:23 AM
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twin it, they sell a nice towing set thats safe for the motor with good tuning.
 
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Old 02-03-2009, 02:25 AM
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if i was going to be towing all the time which i do i would get a fleece cheetah turbo. which i did. pm me if you would like
 
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Old 02-03-2009, 04:06 AM
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Originally Posted by tarkstoyz
I know twins are good for everything.... But would i be better off with just a bigger single turbo? I do tow a TT33ft 12K and a 14ft 6K trailer. So any help would be great.Thx
Also Not a built motor but what needs to be upgraded...Head studs????
You could very well do a Cheetah a A5K or a Garret Turbo. The problem in the eak link with the DMAX is the rods. once you aupgrade the turbo esp. a bigger single your dealing with more pressures. So Rods and Headstuds are a must. But some guys have gotten away with Cryo Treating the rods (much cheaper) and a MPI Twin Stocker Kit. With some Very and I mean Very conserative tuning. But people have still bent the ods and some have shot them through the block. Also you going to need to upgrade your tranny with a Torque Convervetor and atleast a Billet Input shaft. Most of the time you can get away without the intermediate and output shafts. but they should be on the list also.

Originally Posted by 2500HeavyDuty
twin it, they sell a nice towing set thats safe for the motor with good tuning.
Yes a MPI Stocker Twin kit would be a good idea. But he needs to search for someone with good tuning skills cause he's on a stock bottom end.
 
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Old 02-03-2009, 07:43 PM
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So far I do have a built SCIV with 1056 and shim kit, PPE tuning and boost controller, Airdog150, MBRP 5" TB and Intake and ramair induction hood that really does make a difference other than looks. and I did tear up my re-end and had to put a detroit in it... man huge difference than stock.
SO FAR......and then, and then....
 
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Old 02-03-2009, 08:05 PM
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OK cool I didn't know what all you had. Man it's up to you. I would say the Cheetah is probaly your cheapest and best bet. But I would highly recomend EFI Live and look forward to rods in the future. PPE has alot of Pressure so I would go with rods cause PPE is like a Race Tune.

Or a MPI Twin Stocker kit.
 
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Old 02-04-2009, 01:14 AM
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Originally Posted by SPEAKSUP
OK cool I didn't know what all you had. Man it's up to you. I would say the Cheetah is probaly your cheapest and best bet. But I would highly recomend EFI Live and look forward to rods in the future. PPE has alot of Pressure so I would go with rods cause PPE is like a Race Tune.

Or a MPI Twin Stocker kit.
have u ever looked at a ppe tune?
 
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Old 02-04-2009, 01:21 AM
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Originally Posted by 2500HeavyDuty
have u ever looked at a ppe tune?
Most of the ones that I have seen where there Race Tunes and what not. Nothing like a nice conservative tow tune and what not.
 
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Old 02-04-2009, 01:21 PM
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ppe tunes call fo rway to much fuel across the entire fuel map. all this will do is drain the fuel reail faster which will make you run slower and blow more smoke. cheetah's are great but they do not like ppe tunning. there is way to much vane position on the ppe tunning. they dont need all the vane position of the stock turbo because they are so efficiant. i would recomend efi
 
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Old 02-04-2009, 06:56 PM
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You run a LBZ correct. I've had MPI twins for three years. I currently have the so called. "stocker set" on my 07 LBZ classic. Besides the twins, I run TTS lift pumps and fuel pickup, a 4" exhaust, and other than some frontend stuff for drag racing and a cool down timer that it. I tow a 36' race trailer with it, drag race with it a bit and drive daily with the same tune I race with. It's puts out around 575 hp to the ground. I run EFI tunes by Idaho Rob or ATP out of Boise Idaho. He is one of the best dmax tuners and the best tuner of Twin Turbo Dmaxes hands down. Not only do the egt's stay well within the safe zone, the truck has great street manners, spools very quick and I get great fuel economy when I use cruise control and drive 65 mph.
 


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