What is the best tuner for a 6.6 Duramax?

Edge, Bully Dog, Hypertech are considered to be among the top tuner manufacturers for 6.6 Duramax. EFI live, Banks, and PPE are also a few honorable mentions.

Can you tune an L5P Duramax?

Yes. You can tune an L5P turbo-diesel engine (a new generation of Duramax engines) with HP Tuners VCM Suite 4.3+ and an MPVI2 via the OBD2 port. This will require 10 Universal Credits, an MPVI2 with the latest firmware, the latest version of VCM Suite, and an Internet connection.

Is the 6.6L Duramax reliable?

Duramax 6.6L is known to provide durable and reliable performance for 19 years. Many owners consider it to be the best engine in the world. However, some owners claim that air may get stuck in the fuel lines or fuel starvation may take place.

What is the horsepower of a 6.6L Duramax?

The peak horsepower of a 6.6L Duramax engine (2011-2016) is 397 HP at 3,000 RPM. The latest GM 6.6L L5P V-8 model produces 445 HP.

What is the fuel mileage for a 6.6L Duramax diesel?

It mostly depends on your driving habits and gearing. The fuel economy of Duramax 6.6L (when running empty) ranges from 15 to 20 mpg.

Is the LB7 the best Duramax?

The LB7 proved to be one of the most reliable diesel engines ever produced. It was introduced in 2001 and replaced by LLY in mid-2004. It featured high-pressure common-rail direct injection and a unique design cylinder head. Moreover, the LB7 has proved to deliver more torque, be more durable and efficient in terms of fuel economy. However, a few common issues with this model took place. Namely, injector failures, blown head gaskets, overheating, and oil dilution problems.

What is so special about the LBZ Duramax?

The LBZ was introduced in 2006 and was the first Duramax to achieve up to 350 hp at 3,200 rpm and 650 lb-ft of torque at 1,600 RPM. The LBZ had a huge performance potential and support abundance. It was the last model that was produced without a diesel particulate filter. The LBZ featured more aggressive engine tuning, a higher-pressure fuel injection system, a more durable engine block design, increased piston pin diameter, a thicker (than its predecessors) connecting rod section, a variable geometry turbocharger, yielding a substantial increase in horsepower and torque over LLY (the previous model). It was available for only two model years (2006-2007). Then it was replaced by LMM, which was more efficient in terms of emission regulations.

Is the 6.6L Duramax a “big block”?

Not really. More like neither “small” no “big.”

General Motors. The 6.6L Duramax is produced by DMAX (GM and Isuzu joint venture (since 1998) which is located in Moraine, Ohio).

What’s better: Duramax, Power Stroke, or Cummins?

These 3 diesel engines share the same fuel requirements and systems. Both the 6.6L Duramax and Ford 6.7L Power Stroke are V8 engines when the 6.7L Cummins is I6 (inline-six-cylinder diesel engine). The Cummins has a better torque (1000 lb.-ft.) and is the oldest (since 1919) diesel engine. Ram trucks are known for the Cummins engine, Chevy has the Duramax, and Ford trucks run with the Power Stroke. In terms of fuel economy, Duramax is the leader. In terms of horsepower: Cummins (400 HP), Duramax (445 HP), Power Stroke (450 HP) In terms of torque: Cummins (1000 lb.-ft.), Duramax (910 lb.-ft.), Power Stroke (935 lb.-ft.) In terms of towing power: Duramax (23.300 pounds), Cummins (31.210 pounds), Power Stroke (34.000 pounds)

How can you tell if you have the LBZ Duramax?

The 8th digit of the engine’s VIN number is “2” in LLY and the LBZ is “D.” Besides, the badges on the LBZ are typically blue, LLY has the red ones.

What year Duramax has the best fuel mileage?

The efficiency, in this matter, depends on factors like speed, driving habits, weight, towing, etc. So results may vary. But the stock LB7 2001-2004 engines are considered to be the most fuel-efficient (around 20 mpg on cruise control). However, a few modifications will provide the same mileage, no matter the engine’s year.

What does the LBZ Duramax mean?

LBZ is one of the RPO (Regular Production Option) numbers for Duramax engines. There was also the LMK, developed by GM for full-size half-ton trucks, but this engine was never brought to life.

Does the LLY Duramax have Injector Problems?

This was the case with the LB7. To avoid the same issues with the LLY, GM changed the valve covers for easy injector replacement. However, watch out for blown head gaskets.

How many miles can you get on the LBZ Duramax?

You should get around 350,000-500,000 miles on a stock truck without major engine repair. But keep in mind that modifying parts lowers the number.

How many miles does a Duramax last?

It depends on how treated and maintained. It is supposed to last as long as you are ready to spend the money to keep it running. Unless there’s a good reason to change it when something irreparable happens. Many drivers have over 700.000 miles on their trucks.

How many miles can you get out of an LLY Duramax?

The same case as with LBZ (or any other) – it all depends on how you treat it. Many owners have over 300.000 miles on their LLYs since 2005, without any major repairs.

What Allison Transmission is in the Duramax diesel?

Allison 1000 transmission which is the standard automatic transmission for the Duramax diesel since 2001.

How often do you change the oil filter on Duramax?

Every 10.000 miles or when you see the message “change engine oil” (as stated by the manufacturer). Some manufacturers recommend changing oil between 5000-7000 miles.

Are Duramax engines made in America?

Yes. All engines are produced by DMAX in Moraine, Ohio.

What Duramax is in 2019?

The GM 6.6L L5P Duramax that was introduced in 2017.

What problems does LBZ Duramax have?

As some drivers claim, the most common troubles may be due to weak cast-aluminum pistons and wrist pin issues.

Are all 2006 Duramax LBZ?

No, there is also the LLY (engine code “2). In mechanical terms, both the LBZ (engine code “D”) and LLY engines are actually the same, with different tunes.

What oil does a 6.6 Duramax take?

Amsoil, Mobil 1, Delvac, Rotella (T6 full synthetic), Conoco Phillips (semi-synthetic) 5W-40 or 15W-40 engine oils also fit.

What years are LBZ Duramax?

The LBZ was introduced in 2006. Then, in mid-2007, came the release of the LMM.

Does 2002 Duramax have Allison Transmission?

Yes. Allison 5-speed automatic transmission.

What oil does GM recommend for Duramax?

The manufacturer strongly recommends Amsoil Heavy Duty 15W-40 full synthetic engine oil for all Duramax diesel engines, or Amsoil Heavy Duty 5W-40 full synthetic engine oil for cold weather.

What vehicles have Duramax engines?

Chevrolet and GMC trucks mainly. LLY is also used on Hummer H1 Alpha. LB7 (2001-2004): Chevrolet Kodiak/GMC Topkick, Chevrolet Silverado/GMC Sierra HD LLY (2004-2005): Hummer H1 Alpha, Chevrolet Silverado HD/GMC Sierra HD LLY/LBZ (2006-2007): Chevrolet Silverado HD/Kodiak/Express; GMC Sierra/TopKick/Savanna LMM (2007-2010): Chevrolet Silverado HD/Kodiak/Express; GMC Sierra HD/Topkick/Savanna LGH (2010-2017): Chevrolet Silverado HD/Express; GMC Sierra HD/Savanna LML (2011-2016): Chevrolet Silverado HD; GMC Sierra HD L5P (2017): Chevrolet Silverado HD; GMC Sierra HD

What year Duramax have injector problems?

The 2001 to 2004 model year Duramax LB7.

What size Duramax is in Colorado?

GM-exclusive Duramax 2.8L Turbo-Diesel engine (LWN). The dimensions are 25.4″(L) x 25.8″(W) x 34.1″(H). 2.5L 1-4 and 3.6L V6 options are also available.

What year Duramax have DEF?

GM has introduced the Diesel Exhaust Fluid injection system for Duramax in 2011.

What is EFI Live Duramax?

EFILive is a special tuning device/tool/software that is used to alternate computer parameters in the stock ECU and TCM in ’01-to-current Chevys and GMCs. This is how you access and adjust the data.

How much weight can a 2500 Duramax diesel pull?

That depends on distance, speed, and frequency. Initially the 2500HD tows around 14.500-15.400 pounds. But you can pull from 20.000 to 24.000 pounds if you upgrade the trailer hitch.

Does the new Duramax have glow plugs?

Yes. But will only come on when it needs to.

How much horsepower does a 2018 Chevy Duramax have?

2018 Chevy Duramax has 445 HP @ 2,800 rpm.

How much torque does the new Duramax have?

910 lb-ft. at 1,600 rpm (2018 Duramax)

How big is the fuel tank on a 2017 Duramax?

The fuel tank capacity for 2017 trucks is 21.0 gallons for (mid-size) and 26.0-36.0 gallons (full-sized).

How much does a 6.6 Duramax weigh?

All 6.6L Duramax engines weigh approximately 835 lbs.

How does a Duramax diesel work?

Diesel engines operate much like a gasoline engine. Inside the engine, controlled combustion in a cylinder chamber causes pistons to move up and down, which forces a crankshaft to rotate. However, the combustion process is different when it comes to a diesel engine, due to the fact that diesel fuel is different than gasoline. We are talking about spark-ignition (gasoline engines) vs compression-ignition engines (diesel) here. Diesel fuel gets into the combustion chamber at high pressure when the air inside this cylinder is compressed to a high-pressure level. There’s no need for a spark/spark plug to ignite the diesel fuel since the air inside the cylinder grows hot enough to do that.

Which Duramax gets the best mpg?

The first 2001-2004 models with the LB7 engine RPO marking have the best mileage.

When was the first Duramax diesel made?

Duramax has replaced the 440 lb-ft Detroit diesel with the 500 lb-ft LB7 in 2001.

Does Duramax have aluminum heads?

Yes. Always had. But that’s the last thing to worry about.

8 months ago

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by Glenn Freeman