How many CFM does a Duramax diesel engine have?
In stock form, the Duramax’s aluminum cylinder heads flow a little more than 180 cfm (at .500 valve lift) on the intake side. When you compare that to a 6.7L Cummins’ cast-iron head and a 6.4L Power Stroke’s cast-iron heads for example, which flow approximately 160 cfm, the Duramax units are already a step ahead of the game.
What kind of camshaft does a Duramax diesel use?
Thanks to its high-flowing (for a diesel) aluminum heads, the right camshaft can complement the Duramax’s advantageous head flow considerably. Alternate fire, custom ground camshafts – such as this 6480 unit from SoCal Diesel – are all the rage these days.
How to make your Duramax diesel engine bulletproof?
From rod bolts to main studs to the Custom Age 625+ head studs pictured, ARP is deeply involved in the Duramax and the diesel engine industry as a whole. A set of Custom Age studs are always on order when 100 psi (or more) of boost will be sent through a Duramax engine.
What causes a Duramax diesel engine to heat up?
When the engine is working hard, the turbocharger is drawing in a ton of air, and the restrictive stock turbo inlet tube can effectively choke the VGT turbocharger causing the compressor outlet temperature to skyrocket, heating up the intercooler, and ultimately raising the temperature of combustion and the coolant temp.
How many versions of the Duramax diesel engine are there?
All told, there are six different iterations of the Duramax diesel engine: LB7, LLY, LBZ, LMM, LML, and L5P spanning from 2001 to the present day. Each version of the engine has its own issues and quirks, and some are less problematic than others.
When the engine is working hard, the turbocharger is drawing in a ton of air, and the restrictive stock turbo inlet tube can effectively choke the VGT turbocharger causing the compressor outlet temperature to skyrocket, heating up the intercooler, and ultimately raising the temperature of combustion and the coolant temp.
What makes a Duramax LB7 diesel so special?
The introduction of common rail injection powered by the Bosch CP3 injection pump made the LB7 Duramax stand apart from other diesels of the day with excellent power and efficiency.
Are there any problems with the Duramax LMM?
One problem can rear its head when you are pushing the power of the LMM to a level GM never imagined, and that’s with the pistons. Simply put, they can crack under pressure. There are a lot of factors which dictate the power level where a piston bites the dust, but it’s usually north of 600 horsepower.