For someone one a budget, an IDI doesn't fit the bill ANY better.
My Dad and I are Weekend Wrenchers with a small budget. Not much for upgrades that's for sure.
My 85 IDI is burning a quart a week, so I just keep topping it off when I remember. I forget to check a lot as there's a lot on my mind, there has been 4 or 5 times that I've pulled the dipstick and the oil wasn't even readong on it. So I drive over to the parts store and buy a gallon and fill 'er up It's been 16k miles since the last oil change...which was last July. I drive it like I stole it everyday. 1st and 2nd gear are WFO usually and much time is spent laying on the governor between shifts. Guess what I've spent on that truck since the original $900 purchase price?
A windshield, fresh IP and Injectors as soon as I got it home, a set of wiper blades, a couple oil changes, a couple fuel filters, and in my DRW to SRW swap I did the brakes and wheel bearings.
So it's safe to say I have around $2,000 in the truck. No more than that, probably a little less.
I don't know many other people who are as ******* a truck like I am.
Just the other day, it was rainy and wet out. There was a group of Chevy guys at the gas station all snickering at my truck. So I showed 'em a little bit of IDI power. Pull out of the gas station, stuff it in 1st and hold it to the governor, shift, stuff 2nd to the governor, shift, stuff 3rd right on the governor and let that speedo sit right at 60 mph as the truck was going about 20 up the wet hill.
Oh yeah, that's with 16k miles since the last oil change.
And...12 mpg is my average with the WFO treatment everyday.
You can check my records, my truck is used for business, so I have receipts for the last 2 years. But just this week I was introduced to this feautre on FTE where you can log your fill-ups and track mileage. It's pretty neat. 5 MPG is my all time low where the truck idled for 18 hours straight and kept my windshield clear in an ice storm while I shoveled because the ice broke my 2 snowblowers. 23 is my record high, but that was last year's records, so it's not recorded on that mileage thing on FTE. The 35 and 24 are screw ups, I have to edit those still. January with all the 10 mpg days, that's because we had 1 or 2 snow storms each week...and the truck just idled for 6-8 hours straight as I cleared driveways. Yep, idling for 8 hours straight ith 15k miles on the oil change. Might be stupid, or it might just be IDI tough.
Here's a link:
http://www.ford-trucks.com/forums/garage.php?do=showfillups&vehicleid=6245
I'm sorry if my FTE link is a bad idea since I'm now on Oil Burners. But I started there first, no offense intended.
I'm not an antagonizer, I'm just giving a testimonial. Seems like there are a lot of IDI owners who think these trucks need to be babied. I thought I'd hop in here to defend the IDI...
Yes, there are days when I hate my truck and want to set it on fire....yep, can't lie about that!!
Like when some idiot (me!
) didn't put the injector line clamps back on after doing the return lines...I busted an injector line and had to drive 4 days back and forth to school (20 miles each way) running on 7 cylinders. The engine was bucking so hard I feared a motor mount was gonna shear right off....
But, show me ANY truck that is within a tight budget that will be as reliable as an IDI.
Gas truck? Naw, with a tight budget, that means you're looking at 2003 and older trucks...which are alread rusting out...which is why the price is lower. And good luck repairing one of those with all the electrical/vacuum stuff. I swear, they must measire the wire and vacuum hose in MILES when I pop the hood on these newer cars/trucks.
I've looked at many 90's F150 gassers for a second truck, and each time am scared out of getting once because I just don't trust wires. I trust that IP on my 6.9, knowing that every time I turn they key...that friggin 6.9 will fire right up. No matter if the oil is so black and thick that it won't even wash off my hands....
If she's looking for an IDI, I'd say go with a regular cab long bed truck. 6.9 would be ideal, but a 7.3 in good shape would be fine also. I'd run a manual and stay away form auto's (only because I'm biased against auto's, no technical reasons).
2wd or 4x4, that's your/her preference.
As for a 70's pickup...if you find one in good shape and for cheap with maybe a high mileage/blown engine...I'd think an IDI swap would be very cost-effective.
Motor mounts would need to be fabricated, fuel lines run along the frame, and the fuel tank sending unit modified, and installing the appropriate diesel transmission (ZF5 might get tight in there without a body lift).
If you go with a 70's truck, then you're talking about sweeeeeet style with a sweeeeet heart and soul.
My heart is stuck with the 61-66 body style myself...