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| 04.5-05 LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect |
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07-07-2008, 10:43 PM
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eBay Motors
#1 (permalink)
| | Junior Member
Join Date: May 2008
Posts: 18
| ? on gears and turbo
i have 3.73s and want to know if i would benefit more from 4.10s or 4.56s right now it runs 13.40s in the 1/4 and i want to get it into the 12s or should i buy a turbo like the bd or ats 3000 or the garrett gt 4094r
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05 black crewcab sb 4x4 lly 6'' BDS suspension lift 15% tint debadged 35"bfg muds with 17"procomp wheels BDS traction bars afe air intake custom built tranny PPE hot+2 PPE shims and rail mod fass 200 competion pump egr blocker boost stick fabtech tie rods and cognito braces ran a 13.41 at 112mph with ppe on level 7 | 
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07-08-2008, 04:58 AM
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eBay Motors
#2 (permalink)
| | Duramax Forum Moderator
Join Date: Feb 2007 Location: Barnesville OH
Posts: 3,449
| with the taller tires 4:10's mite not be a bad idea but i'm thinking a turbo will bennefit you even more then different gears,anything over the 4:10's would hurt you more then help.you wanna be carefull how muh air you add with stock internals in that LLY.Garret turbos are the way to go IMO but i have no experience with them other then the stock one.
__________________ James 
05 LLY Chevy LS E/C L/B DRW my older brothers truck now
2006 LBZ GMC SLE C/C S/B,sold the truck to my dad for a business truck
My Truck now,1987 Chevy 2500 350 tweaked,6" SuperLift,350 V8 bored 60 over,Elderbrock headers Cam and Titanium Rockers,750 Twin Pumped Holley Carb and some other goodies.crank dynos over 400HP. | |
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07-08-2008, 07:05 AM
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eBay Motors
#3 (permalink)
| | DuramaxForum Veteran
Join Date: Apr 2008 Location: Lincoln, NE
Posts: 685
| with that tall of tires, adding some lower gears will get you closer to the stock final drive ratio. That'll take a little stress off your driveline. And give you better low end acceleration. I'd do that first if you plan on always having big honkin tires. That way when you add the turbo, your driveline will be prepared for it. | |
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07-08-2008, 02:57 PM
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eBay Motors
#4 (permalink)
| | Duramax Forum Supporter
Join Date: Dec 2006 Location: Lubbock, TX
Posts: 626
| I would either stick with the stock gears or only go up to the 4.10's at most anything higher will probably drop your 1/4 time. I would do one of the garrett turbos. Also you might look at this turbo Elite Diesel Engineering Turbo Kits for 6.6L Duramax Don't know of anybody that has one but looks kind of interesting.
__________________ 05' Dmax LLY CC SB, 6in. Fabtech with Heavy duty tie rods,
35in. MICKEY ATZ's, 20in. KMC's,
6000K HID headlights & fogs,
PPE Hot Xcelerator, 4in straight exhaust, Afe stage II intake, Resonator block-off,
PPE boost controller, aeroforce scan gauge
Killerbee Compressor Mouthpiece
PCV reroute courtesy of Tony Burkhard All Seasons Service
Upcoming mods: Lift pumps, Fully built tranny  | |
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07-08-2008, 03:42 PM
|
eBay Motors
#5 (permalink)
| | DuramaxForum Fanatic
Join Date: Mar 2008 Location: SoCal
Posts: 578
| Whats the largest tires you can run with 4.10s?
__________________
2002 Chevy LB7 Crew Cab
Bone Stock for right now!! Looking to add some real power>
16 inch Helo Rims and 285 Nitto Terra Grapplers
Thank you Duramax Forums | |
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07-08-2008, 04:39 PM
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eBay Motors
#6 (permalink)
| | Junior Member
Join Date: Jan 2008
Posts: 3
| i would go with a cheetaha turbo on duramax check it out at fleece performance.com | |
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07-10-2008, 07:45 AM
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eBay Motors
#7 (permalink)
| | Diesel Performance
Join Date: Jun 2006 Location: Sacramento, CA
Posts: 1,005
| 35's are about the max for 3.73 gears. I have a truck in here right now for a Suncoast kit and it has 37's. He wants 4.56 gears to bring him back to a stock ratio. We'll see if he pulls the trigger. . . . . .
From where you are right now, I'd stick with 3.73s and put a BD Super Max on it with a full bore manifold. Should rip then.
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07-14-2008, 07:24 AM
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eBay Motors
#8 (permalink)
| | Junior Member
Join Date: May 2008
Posts: 18
| ok thanks guys i think iam going to put a turbo on
__________________
05 black crewcab sb 4x4 lly 6'' BDS suspension lift 15% tint debadged 35"bfg muds with 17"procomp wheels BDS traction bars afe air intake custom built tranny PPE hot+2 PPE shims and rail mod fass 200 competion pump egr blocker boost stick fabtech tie rods and cognito braces ran a 13.41 at 112mph with ppe on level 7 | |
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07-18-2008, 02:12 PM
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eBay Motors
#9 (permalink)
| | Senior Member
Join Date: Mar 2008
Posts: 244
| X2 with elite diesel they are real good guys, i live by a few of the guys that work there. they know what works.
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01 lb7 ec sb ATS E POWER, ATS STAGE 2 w/ co-pilot ,FASS 150 GPH pump, mbrp 5", PPE sleeves + braces auto meter ultra lite guages airaid intake, billit grill, | |
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