ALL dual STACK setups on any diesel that is turbocharged that you see going down the road from Dodges, Duramax's, Peterbilts, Macks, Volves, etc...... is for one simple purpose.... for looks.kp texan said:
You could have an engine that has 4 banks somehow, it doesn't matter if they all come into a single turbo.
Gale Banks is a dumbass, for the most part. He needs to stick with his turbo'd gassers. He believes that you should get the air to the engine first, then add fuel. That works great on a gas engine... add a supercharger or turbo... push a ton of air and then inject or dump the gas in on top of it. You regulate a gas engine by controlling the air going into the engine. This is why a blown big block 502 making 700HP is going to get 4 (?)mpg in a car...it's going to consume a certain amount of air and the fuel has to be matched or it leans out and burns down.original balzer said:
With a diesel, fuel is your means of engine control. Your foot controls the amount of FUEL being injected, not air. As you dump the fuel to the cylinders, the heat generated spools the turbo and brings in the air on top of the fuel. Now, this is why a 700HP twin turbo'd Cummins Dodge can still get 20mpg, air is free and you can CONTROL the amount of fuel, in a sence HP, that the engine makes.
Where Banks is wrong is that you have to dump fuel to get heat, which then spools the turbo, and then pushes air. On big HP Dodges, they are going to smoke when you lay into the throttle. It's called "roll the coal"
Once the turbo spools, you shouldn't smoke hardly at all. The turbo should get on top of the fuel once it's boosting hard and completely clean up the exhaust color. If it's not, than the turbo is hurt, is WAY too large for the engine and it's fueling rate, or most likely in a pickup, is being overfueled and the turbo simply can't supply enough air to clean up the mixture.
That would be why Demon is a smart dude and is running a mean set of compounding twins....
So, a good running efficient diesel is NOT going to smoke hardly at all, just maybe lightly at take off or anytime the turbo needs respooling. It's basically the same idea with a hotrod diesel, just more dramatic because the fueling rate is much higher and larger turbo(s) spool slower.
When you stomp on the pedal, the injection system is going to squirt and atomize a rich amount of fuel, the actuall amount or how rich depends on the fueling rate that is setup for the engine. That is where Banks really lacks bad, he doesn't like his products to inrichen hard under initial throttle, because he doesn't want smoke. Just to clarify, people think black smoke is unburnt fuel, technically it's burnt fuel with a lack of oxygen. Unburnt fuel is usually white smoke. Anyway.... if the fueling of the pump, injectors, and eletronics are aggressive and push more fuel under no or little boost, your throttle response gets better, makes the turbo spool a lot faster which then makes it come alive and about throw the driver through the back window of the truck when that turbo gets on top of all that fuel.
