How much boost can a stock LLY turbo handle?
The drive pressure for the turbo exceeds 80 PSI at 40 PSI of boost so you are creating more back pressure than boost and therefore robbing a lot of power from the engine. The max boost you can make with a stock LLY hairdryer and still be efficent/useful is around 32-34 PSI.
How much boost does a Duramax diesel make stock?
Depending on stock wastegate condition, with a boost valve it will allow 32-33.
How much power can a stock LLY handle?
Without engine work, the stock LLY can put out ~500rwhp.
What size is the stock turbo on a LLY Duramax?
Largest Turbo 11.2mm on the LML engine available from ’11-’16). This translates into the LLY possessing the highest flowing factory turbocharger.
Which year Duramax is the best?
Most will say the 06-07 LBZ model to be the most desirable and reliable platform. Great power, no emissions and the 6 speed Allison.
What is the best year Duramax?
The Duramax L5P, the current model first released in the 2017 model year, easily takes the crown as the best Duramax engine yet produced. We’ll discuss the many upgrades of the L5P at the end of this article.
What is the most reliable Duramax?
1. 6.6L Duramax LB7 – Overall Best Diesel Engine.
How many miles will 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.
How reliable is the 6.6 Duramax?
Common Problems with the 6.6L Duramax Diesel. 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. While various versions of the engine have surfaced over the years, all generations of the Duramax are based on the same foundation.
What problems do LBZ Duramax have?
LBZ Weak Links The LB7 and LLY engines were known for rod weakness, but the LBZ had trouble with its cast-aluminum pistons. In higher-power applications, the pistons were very prone to cracking. LBZ Duramax upgrades with larger injectors and a larger turbo caused the majority of failures.