Good numbers

[blksmok]

The press release on this is listing some nice numbers for the little diesel. "310 horsepower and 520 lb-ft or torque" Would you consider buying one?

[hondarider552]

isnt that the same stock specs as the lb7?

[Mike L.]

The press release on this is listing some nice numbers for the little diesel. "310 horsepower and 520 lb-ft or torque" Would you consider buying one?

I will have one when released.

[neversatisfied]

Anyone heard about the fuel MPG for one of these?

[gmduramax]

I know a few people that would like them. But I will stick to my 3/4 ton for now. Does anybody know what transmission will be in the 1/2 tons

[McRat]

I already have one of these trucks. There is much wrong with them, and I am working hard to fix all their problems. Do not buy one until I have everything fixed.

[gmduramax]

I already have one of these trucks. There is much wrong with them, and I am working hard to fix all their problems. Do not buy one until I have everything fixed.

Is there a problem with the muffler bearings

[McRat]

Yes. My team of engineers is working closing with General Motors at their request to aleviate the muffler bearing problem. I invented a henway gasket that fixes such problems.

[Ridge_Runner_Diesel]

Yes. My team of engineers is working closing with General Motors at their request to aleviate the muffler bearing problem. I invented a henway gasket that fixes such problems.

If you need a left handed crescent wrench I have a spare, also I have a left handed hammer and chisel.........;)

[RickDLance]

I know it's confusing, but the correct names have now been assigned to their posts.

[James Hess]

i havent heard much about this. what vehicles are these going in? 1/2 ton truck? tahoes? cars?

[blksmok]

http://www.autoblog.com/2008/05/05/gm-releases-details-on-upcoming-4-5l-duramax-turbo-diesel-v8/

[James Hess]

hey i know this aint the motor in discussion but i read in a magazine that gm plans on a 2.9 liter diesel in the new cadillac CTS coupe, sposed to make 250HP and 425TQ or so. and that there actually plannin on production of this coupe.

[Oilfield_Mafia]

If they put the "MiniMax" in a 1/2 ton truck or H2Truck then My wife says I HAVE to buy her one and put a programmer on it.. LMAO

[SFC Cobb]

I have to drive my current 03 dually until the 4.5 comes out then I will consider trading/selling my dually and go into a heavy duty 1500 to tow my TT.:thumb:

[BudTX]

I had my wife sold on one in her next vehicle until diesel prices went nuts.

[stacks04]

gas will be at or very near diesel soon. it is only a matter of time.

[racinmike77]

$4 for gas $4.75 for diesel, may as well cost the same imo

[Elvis]

The new 4.5L LMK Duramax that will be available in light-duty trucks for 2010:
http://images.dieselpowermag.com/tech/chevy/0810dp_06_z+2010_duramax_4500_diesel+engine_left_r ear.jpg
I know a few people that would like them. But I will stick to my 3/4 ton for now. Does anybody know what transmission will be in the 1/2 tons
Essentially the same 6L90 six-speed that is currently used in the 2500HD with 6.0L gas engine.
http://media.gm.com/us/powertrain/en/product_services/2009/Photo%20Library/Transmissions/2009%20Automatics/09%206L90%20MYD%20LoR2_n.jpg
The specs for the 6L90 specifically show torque and horsepower for a smaller diesel than the 6.6L:

2009 Hydra-Matic 6L90 Transmission ( MYD )
Type: six speed RWD / AWD, electronically controlled automatic overdrive transmission with torque converter clutch. Clutch-to-clutch architecture, with integral Electro / Hydraulic Controls Module
Maximum engine power: 452 hp, Diesel: 300 hp
Maximum engine torque: 531 lb-ft, Diesel: 520 lb-ft
Maximum gearbox torque: 885 lb-ft
Gear ratios: MYD
First: 4.03
Second: 2.36
Third: 1.53
Fourth: 1.15
Fifth: 0.85
Sixth: 0.67
Reverse: -3.06
Maximum shift speed 6200 rpm
Maximum Validated Weights: ( Target ) GVW: 15000 lb ( 6803 kg ), GCVW: 21000 lb ( 9525 kg )
7-position quadrant: P, R, N, D, X, X, X ( X = available calibratable range position )
Case description: 3-piece ( Bell, main, extension )
Case material: die cast aluminum
Shift pattern: (2) Three-way on/off solenoids
Shift quality: Five variable bleed solenoid
Torque converter clutch: Variable Bleed Solenoid ECCC
Converter size: 300mm ( reference )
Fluid type: DEXRON® VI
Fluid capacity: w/ 300mm converter 300mm: 13.0L ( 10.8kg )
Transmission weight: w/ 300mm converter Wet: 109kg ( 240lb ) estimated
Pressure taps available: line pressure
Assembly Site: GMPT Ypsilanti, MI
Applications: Chevrolet Suburban
GMC Yukon XL
Chevrolet Silverado HD Pick-up
GMC Sierra HD Pick-up
Cadillac CTS-V
Available Control Features: Multiple Shift Patterns ( Selectable or Adaptive )
Driver Shift Control ( Tap Up / Tap Down )
Enhanced Performance Algorithm Shifting ( PAS II )
Next Generation Tow / Haul Mode
Engine Torque Management On All Shifts
Altitude and Temperature Compensation
Adaptive Shift Time
Neutral Idle
Reverse Lockout
Automatic Grade Braking
Additional Features: Oil Life Monitor
OBDII / EOBD
Integral Electro/Hydraulic Controls Module ( Tehcm )
Control Interface Protocol - GMLAN

source: http://media.gm.com/us/powertrain/en/product_services/2009/09truck.htm

More info: http://media.gm.com/us/powertrain/en/product_services/2009/Stories/Transmissions/2009%20Auto%20Transmission/09_6L90_MYD_n.doc


An in-depth interview with Charlie Freese, GM's Executive Director of Diesel Engineering is here: http://www.dieselpowermag.com/tech/chevy/0810dp_2010_duramax_4500_diesel/index.html
Here's an excerpt from this article:
"We continue to improve the 6.6L Duramax for those customers that require the biggest, most capable truck available. The 6.6L will serve the 2500 and 3500 pickups (Chevrolet Silverado and GMC Sierra), fullsize vans (Chevrolet Express and GMC Savanna), and commercial trucks (Kodiak and Topkick)."

Note that he doesn't say the 4.5L won't ever be available in the HDs, just that the 6.6L WILL continue to be available. IMO, they would be foolish to not (eventually) offer the 300hp 4.5L instead of the detuned 250hp 6.6L in the vans, especially if it is less expensive.

[James Hess]

There is a whole write up on this motor including a few other in it in the October 2008 issue of dieselpower.

[Oilfield_Mafia]

Im with Mike L on this one.. I will have one when they come out.

[EFI Support]

I'm not convinced that this is going to go ahead. When GM doesn't show their vehicle at SEMA (2008) and then announce that they plan to auction their "demo model" before it's released it's not really a positive step. http://jalopnik.com/5113113/gm-to-auction-near+classics-from-corporate-museum

There is also rumours on GM Inside News that the 4.5 has been delayed for 18 months. http://www.gminsidenews.com/forums/f60/4-5l-duramax-diesel-delayed-18-months-70869/

Cheers
Cindy

[James Hess]

Here is the article i read about the 4.5 and also in this mag is the info on the(as the mag called it) "ultimax".http://www.dieselpowermag.com/tech/chevy/0810dp_2010_duramax_4500_diesel/performance_tuning.html

[madmaxdmax]

Here is the article i read about the 4.5 and also in this mag is the info on the(as the mag called it) "ultimax".http://www.dieselpowermag.com/tech/chevy/0810dp_2010_duramax_4500_diesel/performance_tuning.html

...Sounds like the boys at GM better re-think their budgets given the bail-outs. Interesting though.

[James Hess]

Yeah i think this would be a great idea but i think this will at least be post poned for a while longer, it would definatly be a nice thing to have avaliable though.

I wonder now they more automakers are going with diesel powerplants if the price of diesel is going to shoot through the roof any more than it has.