Search results

Yes, I've done that several times, for several reasons, including the replacing of the TPS. The procedure, for both WTEC2 and WTEC3, are here in my "Common Fix" document in my signature.

I'm not sure I followed that. Yes, mine is a WTEC2. It shifts up into 7th very reliably at 60-62MPH (with 3.07:1 gears), and back down into 6th at that same speed range.

Yeah, I've recalibrated it. Even got a new Throttle Position Sensor. Mine is one of the harder-shifting trucks, which only makes the shifting more annoying.

Not disagreeing with this, however, one thing that is overlooked is that it's not just as simple as that. People need to look at the transmission shift points, and what speed ranges are for each gear. Now that I run the 3.07:1 gears, I find that my LMTV cruises nicely at 65MPH on the highway...

You're arguing that nobody intended these trucks to go that fast, and they aren't rated to, so it isn't safe, but some versions were explicitly designed to go that fast, and had tires to do it safely. I conceded that the Michelins were rated low in my previous post, so I'm not sure why you're...

It seems like a lot of that rant is predicated on the line above, but it's not correct. The Michelins are rated low, but the Goodyears are either 68MPH or 81MPH, depending on the load range you get.

It's not like they didn't have access to this information when they designed it. They geared it exactly how they wanted it geared, for their specs/needs. If it's "far from being geared correctly" for your needs, change it, but you didn't discover some mistake or anything.

That's an oversimplification, but yes. The other key point is that while you can make the MPG way worse pretty easily, you're not going to improve it more than a couple percent with any particular mod (e.g. air dams, high PSI in the tires, fuel additives, etc.). So if the truck starts out at...

1. It's not primarily engine "resistance" (e.g. friction). When the fuel is burned, most of the energy is converted to heat in the resulting gases, and then released through the exhaust or absorbed by metal parts on it's way out. Take a look at the study above and it explains a bunch of their...

They have heavily modified FMTVs?

All these points still confuse the ideas of "which systems on the truck are easily modifiable to get fuel mileage gains" and "which systems on the truck could theoretically get large/meaningful fuel mileage gains". You can easily add aerodynamics and get some trivial gains, or you can...

It's not in contradiction. It just goes to show how wasteful the engine is (and how counterintuitive this subject can be). All that force you're feeling on your motorcycle, in terms of energy, is tiny compared to how much the engine is wasting. If you need further convincing, using your own...

That is a misleading or confusing way to phrase or think about the problem. The aerodynamic losses make up the smallest contribution, and so even if you could make them totally go away, it would only have a very small effect. However, playing with aerodynamics is way easier to do, compared to...