Ram Goes to Stunning 900 lb-ft of torque
The 2016 Ram 3500 breaks the towing record previously held by the old Ram 3500 (at 30,000 pounds) by moving up to 31,210 pounds,more than two tons beyond its closest rival. To get there, Ram went from...
Forum Discussion
That's the same reasoning that some use with the 6.7 engine.
Why didn't Cummins and Ram just stay with the 5.9 engine when all they had to do is put a box on the fuel system and jack the power up to 385 HP? After all, lots of people are putting out over 400 streetable HP out of their 5.9's so why not just stick with the proven engine?
Two of the big reasons are reliability and emissions. When you tack things like DPF's and things like that onto the engine it takes HP away from the wheels. To make that up they had to go to a bigger engine. When you put more emissions on engines you have to bring the power up. When you bring the power up you bring reliability down. Hence the 6.7 was born!
Same way with the LLY and LBZ. The LLY came factory with 310 HP. The LBZ was 360 from the factory. Only 50 HP difference. Did GM just stick a tuner on the LLY and "call R good"? Hell no!
Lets look at some of the things GM did instead of just jacking 50 more HP of fuel and timing into the engine:
* Cylinder block casting and machining changes strengthen the bottom of the cylinder bores to support increased horsepower and torque
* Upgraded main bearing material increases durability
* Revised piston design helps lower compression ratio to 16.8:1 from 17.5:1
* Piston pin bore diameter increased for increased strength
* Connecting rod “ I ” section is thicker for increased strength
* Cylinder heads revised to accommodate lower compression and reduced cylinder firing pressure
* Maximum injection pressure increased from 23,000 psi to more than 26,000 psi
* Fuel delivered via higher-pressure pump, fuel rails, distribution lines and all-new, seven-hole fuel injectors
* Fuel injectors spray directly onto glow plugs, providing faster, better-quality starts and more complete cold-start combustion for reduced emissions
* Improved glow plugs heat up faster through an independent controller
* Revised variable-geometry turbocharger is aerodynamically more efficient to help deliver smooth and immediate response and lower emissions
* Air induction system re-tuned to enhance quietness
* EGR has larger cooler to bring more exhaust into the system
* First application of new, 32-bit E35 controller, which adjusts and compensates for the fuel flow to bolster efficiency and reduce emissions
As you can see; that's a hellofalot of mods of do for just 50 HP. New block, new block material, new compression ratio, new pistons, new rods, ect, ect, ect...............hell, it's a totally different engine............all for just 50 more HP!!!!!
Stupid GM. They could have just contracted with Bully Dog and been done with it!! LOL :B
The bottom line is this: Ram or GM or Ford and make lots of power with engines. But, to keep them reliable within the warrantee period and keep them emission legal is a totally, totally, totally different matter!
Why didn't Cummins and Ram just stay with the 5.9 engine when all they had to do is put a box on the fuel system and jack the power up to 385 HP? After all, lots of people are putting out over 400 streetable HP out of their 5.9's so why not just stick with the proven engine?
Two of the big reasons are reliability and emissions. When you tack things like DPF's and things like that onto the engine it takes HP away from the wheels. To make that up they had to go to a bigger engine. When you put more emissions on engines you have to bring the power up. When you bring the power up you bring reliability down. Hence the 6.7 was born!
Same way with the LLY and LBZ. The LLY came factory with 310 HP. The LBZ was 360 from the factory. Only 50 HP difference. Did GM just stick a tuner on the LLY and "call R good"? Hell no!
Lets look at some of the things GM did instead of just jacking 50 more HP of fuel and timing into the engine:
* Cylinder block casting and machining changes strengthen the bottom of the cylinder bores to support increased horsepower and torque
* Upgraded main bearing material increases durability
* Revised piston design helps lower compression ratio to 16.8:1 from 17.5:1
* Piston pin bore diameter increased for increased strength
* Connecting rod “ I ” section is thicker for increased strength
* Cylinder heads revised to accommodate lower compression and reduced cylinder firing pressure
* Maximum injection pressure increased from 23,000 psi to more than 26,000 psi
* Fuel delivered via higher-pressure pump, fuel rails, distribution lines and all-new, seven-hole fuel injectors
* Fuel injectors spray directly onto glow plugs, providing faster, better-quality starts and more complete cold-start combustion for reduced emissions
* Improved glow plugs heat up faster through an independent controller
* Revised variable-geometry turbocharger is aerodynamically more efficient to help deliver smooth and immediate response and lower emissions
* Air induction system re-tuned to enhance quietness
* EGR has larger cooler to bring more exhaust into the system
* First application of new, 32-bit E35 controller, which adjusts and compensates for the fuel flow to bolster efficiency and reduce emissions
As you can see; that's a hellofalot of mods of do for just 50 HP. New block, new block material, new compression ratio, new pistons, new rods, ect, ect, ect...............hell, it's a totally different engine............all for just 50 more HP!!!!!
Stupid GM. They could have just contracted with Bully Dog and been done with it!! LOL :B
The bottom line is this: Ram or GM or Ford and make lots of power with engines. But, to keep them reliable within the warrantee period and keep them emission legal is a totally, totally, totally different matter!
