How much HP can a stock LB7 handle?
550 to 600 hpCouple that with a weaker connecting rod and you can draw a pretty strong conclusion as to why the LB7 rods fail in the 550 to 600 hp (1,100 to 1,200 lb-ft.) range. While we tend to talk in terms of horsepower, it's the torque of these engines that does all the damage.
Are LB7 fast?
Motor work it is a very fast truck the lb7 is the fastest motor of all the duramax motors.
How much power can a stock LB7 turbo make?
530 rwhpThe original 60mm 10-blade compressor wheel that comes in the stock LB7 turbocharger is sufficient in a stock application and will support up to 530 rwhp with the right supporting mods, but its design really limits flow as engine RPMs increase.
How much boost does a stock LB7 Duramax make?
Depending on stock wastegate condition, with a boost valve it will allow 32-33.
How much HP does a 2003 LB7 have?
235 Horsepower @ 2,700Horsepower & TorqueYear(s)Horsepower:Torque:2001-2003235 Horsepower @ 2,700 Rpm500 LB/FT @ 1,600 Rpm2004300 Horsepower @ 3,100 Rpm520 Lb/Ft @ 1,800 RpmJun 3, 2019
How long will a LB7 last?
As we said earlier, the LB7 powered HD Sierras and Silverado's are very reliable, and many you'll find on the market have well over 300,000 miles on the original engine.
How do I get more horsepower out of my LB7?
1) LB7 Tuner Tuners offer the best bang for the buck and can easily add over 100whp. Your two options for LB7 tuning are using an off-the-shelf flash tuner or getting a custom tune. Custom tuning will offer the most power gains and the most refined engine performance.
How do I get more power out of my LB7?
If you want to improve performance, an aftermarket cold air intake can provide pretty solid gains for a cheap price. Aftermarket cold air intakes like the LB7 Duramax Banks Power Ram Air System provide the engine with cooler, denser air which results in more power.
What's better LBZ or LB7?
The LBZ Duramax V-8 engine is more powerful than the LB7 and LLY with its 605 lb. ft torque at 1600 rpm and 310 bhp at 3000 rpm. LLY has two variants; one with a power output of 310 bhp at 3000 rpm and another 250 bhp at 3200 rpm. LB7 comes with a power output of 300 bhp at 3200 rpm.
What size is a factory LB7 turbo?
Along with the engine, the factory 60mm IHI turbocharger is still aboard Buddy's LB7.
Will a lly turbo work on a LB7?
The LB7 ECM has no way to control the LLY turbo.
What do I need to know about LB7 Duramax?
LB7 Hard FactsProduction'01-'04Cast aluminum, six 14mm diameter head bolts per cylinder (with sharing)Displacement6.6L (403ci)Bosch CP3Compression Ratio17.5:1IHI RHG6 fixed geometry (with wastegate)BlockDeep-skirt, cast iron (gray iron alloy)Air-to-airRodsForged steel, fractured300hp at 3100 rpm4 more rows•Nov 29, 2018
What is a LB7?
The LB7 is the original production 6.6L Duramax V8. Following success with the performance and reliability of the LB7, this engine became the building block of the Duramax line all the way up until today.
What is the LBZ engine?
For most folks, the LBZ is a dream of an engine and will do whatever you’d like it do while maintaining its reliability. However, for those diesel power enthusiasts looking to push engines to massive horsepower numbers, the LBZ has its crux. The pistons on this engine are known to crack above the 600rwhp mark.
How much horsepower does a 6.6 Duramax have?
From the first generation to the one currently in production today, the 6.6L Duramax has nearly double its horsepower and torque, from 235hp and 500lb-ft. in 2001 to 445hp and 910ft-lb. today. And along the way the engine has become significantly more emissions friendly.
What is the last engine model to not have all the problematic new emissions features with it?
Additionally, the LBZ was the last engine model (RPO) to not have all the problematic new emissions features with it (with the exception of an EGR). The LBZ’s lack of emissions-controlling technology is actually the sole reason for its short lifespan.
Which Duramax has the largest turbo?
With the Garrett GT3788VA, the LLY Duramax has the largest turbocharger in it out of any other 6.6L Duramax variation. Given the larger turbo and various other small engine improvements, the LLY has the biggest horsepower gains from a tune only compared to any other variation, with the exception of the L5P Duramax.
Which Duramax truck is best for towing?
With its fully-boxed frame and upgraded IFS suspension, the Duramax LML-featured trucks are the best towing trucks out of any of the other Duramax’s on this list.
When did the Duramax 6.6L come out?
The Duramax 6.6L V8 turbo-diesel engine is nearing its 20th year of production, after debuting in 2001. Over the engine’s lifespan it has gone through 6 different engine variations: LB7, LLY, LBZ, LMM, LML, and L5P. From the first generation to the one currently in production today, the 6.6L Duramax has nearly double its horsepower and torque, ...
