91 ranger,4.10's,33's-what would get better mileage?4.0l or 2.9l?

[rickcdewitt]

i figured with a title like its got this thread would stir up a good conversation.when its all said and done guys the 4.0l donor truck in the yard sounds too tempting to pass up.i've had "almost enough power" for too long and a 4.0l would give it hauling/pulling abilities i'm willing to pay for at the pump.i'm going to start a for sale thread for my misc. 2.9l parts.thanks for all the advise guys!

 

[Evan]

It's kind of a useless discussion. There are sooo many variables involved here. Then you have a bunch of guys saying how many MPGs they got one day when they took a road trip. Who knows if that number was measured correctly or remembered correctly.

Run whichever engine you like. The difference in gas consumption is going to be small and won't make or break you financially.

 

[rickcdewitt]

It's kind of a useless discussion.

not really.all i wanted was to get others thoughts on the subject and their #'s(skewed or not) before jumping off the edge

 

[AllanD]

Allan, you've lived in suburban Pennsylvania far too long if you think the single-tank stunt is a good idea. Running out of fuel in the middle of nowhere can be a LIFE-THREATENING EXPERIENCE, particularly if you run into severe weather. And Jerry cans are a huge problem in a collision. I generally don't let my tank get below half in isolated areas, since it can be 100 miles to the next fuel station. You can try this on I-95 if you really want to.

Mike,

You presume much grasshopper....

when that "single tank" runs dry I typically have enough fuel onboard to go another... 1200-1400 miles.

I just wait until the engine stumbles and flick the tank selector
switch to shift from my 21gallon "Aux" tank to my 22gallon "main" tank.

But I've recently been accused (correctly) of lying when I say my truck has dual-tanks. It really doesn't have dual tanks....... the THIRD tank (all 41gallons of it) is "hidden" inside an aluminum diamond plate toolbox in the front of my bed.

"Fuel tank? What fuel tank? I don't see no fuel tank!"

Mike, I may not be a pilot but I firmly believe an old rule of flying:
"the only time you have too much fuel is when you are on fire"

Then there is this concept of "drop tanks"

Of no importance or relevance whatsoever... do you know
what happens if at just about any truck stop in america
you leave an empty plastic 55gallon barrel unattended
for say... long enough to go inside take a piss and get
a cup of coffee? No, Nobody calls the EPA, FBI or DHS...
The barrel simply disappears like a fart in a hurricane.

I have personal experience as I've tested this numerous times.
sometimes unintentionally...

I suspect that anything short of chaining them down will not prevent them from vanishing, because I've actually had a couple disappear from INSIDE the open bed of a parked pickup.... when left unattended for a grand total of four minutes.

I'm not sure if I should be amused, because I was looking for some place to abandon... umm.... errr... donate them at the time or disturbed, because this happened in central Iowa.

I do know I'm happy I didn't have them strapped down to my trailer
at the time because them they might have taken my $30 ratchet tie
downs too...

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[krugford]

Well, bsfc is load dependent..... The more %load you put on the engine for any given rpm, the lower the bsfc.