So my question is, what happens now that EFI will support the CR? Now that the Cummins guys can make the same and even more power while at the same time keeping there timing in check, will they be more reliable at 600-1000 hp range than they are now? Will they be more reliable than the D-Max
I hope so. Really, it's a crap shoot. Save a couple guys that have scoped them, no-one really KNOWS what is going on. What's the timing? Don't know. Duration...don't know. Basically, we are at the mercy of the aftermarket, hoping that they know what they are doing. Our options are really pretty limited.
There's debate about the 3rd injection being the culprit to the 04.5-07 Cummins' more frequent melted piston problem. However, some have scoped it, and it only kicks in at certain periods.
I think it's actually kind of amazing we make the power we do with limited options, both Ford and GM can have custom tunes. I'm holding out hope that EFI is the answer, and yes, I plan to tune my own
Somebody splain me the whole stacking thing. I know they have to disable the additional timing on one of the programmers. I'm a novice at all of the electronics side of diesel engines so break it down Barney style for us slow folks.
Basically, you have three parameters altered in a CR; timing, pressure, and duration.
Many of these are changed by fooling the ECM. Tricking it into seeing less boost, therefore commanding more fuel. Or tricking it into seeing less pressure than it really is.
Example: Smarty replaces the stock ECM data with altered tables. The Quad Adrenaline takes the data from the sensor, alters it, and sends it to the ECM. The ECM will only command so much pressure, so the Smarty is limited. An external pressure box, like the Adrenaline or MP8, tells the ECM it's seeing less when it's really seeing what it wants, so it keeps commanding more to see the normal rate. Make sense? Actual pressure is 23k, the MP8 tells the ECM no, your only at 17k, so the ECM commands more to get to the 23k it wants, so your really at 26k
I'm by no means an expert, but that's a general example. However, programmers like the Smarty are so good, they take care of it all themselves, and the need to stack isn't as necessary, but some still throw a pressure box on.
