How much HP can a lly handle?

How much HP can a lly handle?

The answer depends on how long. Without engine work, the stock LLY can put out ~500rwhp.

What should I add to my modified LLY Duramax?

If you plan to tow heavy with your modified LLY, you’ll want to make sure the cooling system has no chance of overheating. The best way to accomplish this is to add an external oil cooler.

What kind of engine does LLY Duramax have?

However—and just as is the case with the LB7-powered GMs—while the common-rail injection system and stock turbocharger can support as much as 530rwhp with EFI Live tuning, the stock Allison transmission won’t last (especially the five-speed version used in ’01-’05 trucks).

Are there any problems with the LLY engine?

However, there are a number of new issues that have arisen due to the changes, and a number of shared problems with the LB7. Additionally, 2006 LLY models are very comparable to the LBZ engine, creating a number of overlapping common problems there as well.

Is the LLY Duramax engine at risk of bending?

The LLY engine is known to run warmer than others, so be prepared to add a few preventative items in order to combat this, especially if you plan to do any heavy towing. At any power level beyond 600rwhp, the LLY’s connecting rods are at risk of bending.

If you plan to tow heavy with your modified LLY, you’ll want to make sure the cooling system has no chance of overheating. The best way to accomplish this is to add an external oil cooler.

However, there are a number of new issues that have arisen due to the changes, and a number of shared problems with the LB7. Additionally, 2006 LLY models are very comparable to the LBZ engine, creating a number of overlapping common problems there as well.

However—and just as is the case with the LB7-powered GMs—while the common-rail injection system and stock turbocharger can support as much as 530rwhp with EFI Live tuning, the stock Allison transmission won’t last (especially the five-speed version used in ’01-’05 trucks).

Are there any problems with the Duramax LB7 engine?

For this reason, adding performance modifications to the Duramax is a common route to improve performance and hauling capacity. While light modifications such as intakes, exhausts, and modest tunes shouldn’t cause any problems, bigger or more aggressive modifications can. The LLY uses the same forged-steel rods as the LB7 used.