Forum Discussion
dodge_guy
Jun 07, 2014Explorer II
BurbMan wrote:dodge guy wrote:
We have 2 8.1`s that come by work, one is a 3500 Silverado and the other is an Avalanche. both are dogs, and neither of them can get out their own way, much less towing something!
You have to remember the 8.1 is drive-by-wire, it has no throttle cable, the accelerator pedal is just another input for the PCM. This is to keep you from smoking the rear tires every time you tap the gas.
You are right, the 8.1 doesn't "feel" fast. When the truck is empty, it feels like it should have more power when you step on the gas for as big as the motor is. Funny thing though, when I hook up my 8500 lb TT, it "feels" the same as when it's empty. So the same throttle position can produce different power delivery depending on the work that needs to get done to keep the feel of the truck the same, loaded or unloaded.
Jeremiah, good luck on your shopping trip today. IMO I would stay away from the 5.4 if you are planning to tow with the X, there's just not enough power there for that heavy truck. If the diesel is a 7.3 and in good shape it may be worth stretching the budget if that's possible....those vehicles are rare as hen's teeth at this point.
Both you and 8.1 are right, i forgot that they are drive by wire. Yes it does make a difference. That is one thing that i haven't done is tow with an 8.1, so my time behind the wheel of one is limited. I wonder if Black Bears tunes make it any better?
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