How much HP can a stock Duramax handle?
This might explain why more LML powered trucks are surviving the 650 to 700-rwhp range on stock internals. In case you’re wondering, the verdict is still out on how much horsepower and torque the stock bottom ends will handle on the ’11-newer LML mills.
How much horsepower does a 2002 Duramax have?
Duramax Horsepower & Torque by Model Year
| Model Year | Horsepower | Torque |
|---|---|---|
| 2001 | 235 hp @ 2,700 rpm | 500 lb-ft @ 1,600 rpm |
| 2002 | 235 hp @ 2,700 rpm | 500 lb-ft @ 1,600 rpm |
| 2003 | 235 hp @ 2,700 rpm | 500 lb-ft @ 1,600 rpm |
| 2004 | LB7: 300 hp @ 3,100 rpm LLY: 310 hp @ 3,000 rpm | LB7: 520 lb-ft @ 1,800 rpm LLY: 520 lb-ft @ 1,600 rpm |
How much horsepower does a stock 6.6 Duramax have?
445 horsepower
How much horsepower does a stock LB7 have?
6.6L Duramax LB7 Specs
| Engine: | 6.6L Duramax LB7, 90 degree V-8 diesel |
|---|---|
| Idle Speed: | ~ 680 rpm |
| Max Engine Speed: | 3,250 rpm (rev limiter) |
| Peak Horsepower: | • 235 hp @ 2,700 rpm (2001 model year) • 300 hp @ 3,100 rpm (2004 model year) |
| Peak Torque: | • 500 lb-ft @ 1,600 rpm (2001 model year) • 520 lb-ft @ 1,800 rpm (2004 model year) |
How much horsepower can a stock Allison 1000 handle?
As you’ve probably deduced up to this point, the stock Allison will handle roughly 350 to 400-rwhp in five-speed form and 425 to 450-rwhp in six-speed trim. However, if you push things past that point the clutches will eventually slip and bring on the Allison’s notorious “limp mode” condition (i.e. limp home mode).
Is LMM or LML better?
LML is arguably a better engine but there are issues with DEF on all makes; Ford, Ram and GM. LMM emission controls have proved to be as reliable as any. I’d go with the newer truck but it’s your decision.
What is the best year of Duramax to buy?
The 2001 – 2004 model years are great on fuel, have the least emissions components, and shouldn’t give you any problems if the injectors were replaced under warranty. Avoid the 2007.5 – 2010 model year trucks if you are concerned with fuel economy.
How many miles will a LML Duramax last?
GM has given the engine a 95% rating at 200,000 miles, meaning 95% of all engines should reach 200,000 miles of service, based on durability and wear.
What is high mileage for a Duramax?
A poorly-maintained engine can quickly fall into disrepair before it even reaches the 100,000-mile mark while a well-maintained Duramax pickup truck should last 400,000 or even 500,000 miles.
What year Duramax has injector problems?
What year Duramax has injector problems? The LB7 Duramax built from 2001 – 2004.5 is known for injector failure. The good news is the replacement injectors you purchase from us incorporate several updates to help prevent repeat failures.
How long do Duramax injectors last?
Most well-maintained LLY injectors last between 150,000 to 200,000 miles.
How long do injectors last on a 6.6 Duramax?
I’ve seen injectors go out at 70,000 or 250,000.
How often do Duramax injectors go bad?
Yes, they all will fail. Its just some fail more often than others. Some go for 250K miles on the origanals where others can’t get 100K. There is no ryme or reason to it.
How much do injectors cost for a Duramax?
The total cost to have a mechanic replace 8 injectors on an LLY Duramax can range from $3500 – $4500 CAD, depending on what other work is performed at the same time. The good news is LLY injectors are located outside the valve covers so the task is considerably easier and cheaper than on prior LB7 models.
Is the 6.6 Duramax a good engine?
The 6.6L Duramax has been in production since 2001 and has proved, on a large scale, to be a relatively reliable and durable platform. However, like any engine (or any complex mechanism for that matter), the Duramax engine and Allison 1000 transmission have some common problems inherent to their design.
How do I know if my Duramax injectors are bad?
There is a multitude of symptoms your truck will experience if the injectors are going bad. One of the first signs we see are excessive smoke/haze. You will notice your truck billowing out a little more smoke than usual or hazing at idle. Another issue you may notice is high EGTs.