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I think we mostly agree here, but your drawings have the pluses and minuses switched. Bernoulli's Law dictates that when the velocity of a flow decreases the pressure increases. Think of the windshield as an air dam. The flow of air over the hood pushes against the windshield and forces the...

The base of the windshield on most vehicles is definitely high pressure, not low pressure. How high the pressure is proportional to how sharp the angle between the hood and windshield is and how fast you are going. You can easily verify this for yourself. At highway speeds you can close all...

As mentioned, the back of the hood and base of the winshield area is a high pressure zone at highway speeds. The front to middle of the hood is a low pressure zone. Many cars that have low profile forward facing hood scoops in the middle of the hood are actually tring to take air from one of...

My resolution is to not make anymore resolutions.:smile5:

Could that be because you are running the A/C during the summer and not during the winter?

The decreased compression ratio on the LBZ will decrease fuel efficiency, all else being equal. I'm pretty sure the compression was lowered to decrease NOx emmisions. The power increase the LBZ has over the LLY is due to programming changes, but if you plan to run a tuner, that isn't a big...

I have a set of Correctrack spacers on the back of my truck to make the rear wheels line up with the fronts. I think that they are about 1 7/8" thick. I had to grind off the tips of the lugs so that they would not hit the back of the wheels. Anything less than 2" spacers will require some...

Count me in too. Thanks Wecker. :thumbsup:

You can't trust the DIC mileage with a non-factory tune installed. You have to check mileage the old fashioned way. My Predator tuner made the DIC mileage jump up several MPG, but hand calculated the mileage is only about 1/2 MPG better than stock. The more agressive the tune you install, the...

No need to evacuate the system if all you want to do is add charge. Those quick charge systems you get at the parts store are fine as long as your system already has R-134A in it. If your truck is old enough to be R-12 then obviously you don't want to add R-134A to that.

The only thing I know about the V4 Wisconsin engines is that once they are warmed up, if you shut them off they are near impossible to restart until they have cooled off again.

LA's Totally Awesome. You can get it at one of the dollar stores. It's the best stuff I have found for removing the black aluminum oxide streaks.

It's not unusual for tractors that are available with both turf and ag tires to use smaller diameter tires when running turfs. If you get a copy of the owners manual, it should indicate what the original tire sizes were. In any case, you might want to keep an eye out for some agricultural...

The York rake shouln't be any problem. The question is the grader box, and that depends on how hard your ground is and how fast you want to get the job done. I have a 4x4 JD 4300 tractor that is a little bigger and heavier than that Ford and I spin the tires pretty easy when doing any kind of...

On a tractor that small I would definately want 4wd. Especially since you said you want to pull a grader box with it.

Just remember the old saying, "measure once, cut twice".:smile5:

I'm pretty sure that the frame rails are closer together on a cab and chassis than they are on a normal pickup truck with a box.

That was what I was told by a Cognito vendor. I don't remember if it was Nor-Cal Nick or somebody else.

I think the backspace limit is a maximum allowable amount. Less backspace should be fine. I considered getting the kit myself but the stock PYOs have too much backspace to fit without hitting.

For a good freeware firewall try Jetico Personal Firewall. It always scores very well on firewall tests.