2.5 L Land Rover Diesel

[Landrovie]

Hey Guys, What kind of power, or lack there of, could one expect from a 2.5L diesel? Highway speed, off road, etc. Thanks for your replies in advance.

[zed]

Its got about 10-15 less horsepower.. Which doesn't sound like a lot till you remember you're dealing with numbers under 100 to begin with. advertised hp for the 2.5 is 68, for the series III 2.25 is 81.
Though you will, according to people around the web, pick up 5-15 mpg. Depending on what you think a 2.25 gets. Which seems to depend greatly on carb and tune of. I get around 15 mixed or so. the diesel is supposed to get about 22 or so. I don't have any experience with them. I have owned some small diesels running about that much horsepower in much smaller cars. They were very slow. It depends on your conditions. I don't think highway speed would be unattainable. But how long do you want to take to get there.

I would definitely go diesel if there was an easy swap available in the US. Just cause... with numbers like that.. it wouldn't save any money. But it would sound cool at idle.

[jimfoo]

It also depends on what you are driving. I went with some friends to Moab from Colorado. One had a 2.5 in his 86" Ser I. It did a lot better going up the passes than another 88" with a somewhat tired 2.25. It would be slow in a 109, but I don't think it would be too bad in an 88" or smaller.

[zed]

I would be concerned if you were typically an urban on-off ramp driver. But that's an issue with petrol too.
I hate pushing my vehicle as hard as i do to get it up the local up-hill onramp. Or up the mountain to work if i'm cutting into traffic. With a diesel.. I would be crossing that thresh hold to where I should avoid the on ramp for courtesy's sake. The way I feel anyway.

[zed]

I found this article.. "to diesel or not"

I would really like to know where you people find these engines.

I know a guy who's been looking actively for years.. came up with a few suitable alternatives.. but always stalled in adapting running gear.


Not that an isuzu diesel is any easier to find.. but I'm curious as to how it installs.

[jimfoo]

I think the Isuzu diesel was the one from the Scout II.

[zed]

There was a diesel Scout?!!??!

Well. they have to be a dime a dozen....
Dag burn it.
I'm never going to have a diesel land rover.

[Landrovie]

Better gas milage always sounds good. My commute is rather short, around 2 or 3 miles, so not going fast is not really an issue. I am however excited to see how the 2.5 will do in Moab this sept. Thanks for the replies.

[zed]

well.. better gas mileage will only get you farther on a tank.. not cheaper.
diesel is proportionately more expensive.

[jimfoo]

Depends on how much better the mileage is. Diesel here is 20% more than gas, but I get around 160% better mileage, so it is cheaper for me.

[zed]

really 35-40mpg?... that's admirable for a brand new vw tdi in a jetta. Diesel here.. at the 2-3 stations its available is about 30% more.. but I would have to drive quite a bit out of my way to get it.

I get an EASY 15mpg.. none of it highway. A trip to town on the highway and back brings my mileage close to 18 or so. making your mileage 39ish? That's pretty incredible with the LR gearing.. but maybe you're not using that.
Big difference between a 1.9 VW and a 2.5 antique though.. but Yea.. that would be pushing worth it. Recouping the initial cost would still take a while. But it probably feels nice to have done it.

BTW... how's the diesel doing right now.. figure it out?

[jimfoo]

It was late last night when I posted, guess I should have said 60% better, not 160%. 32 mpg, but still way better than 20, and the off road percentage is even better than that though I never measured the 2.25 off road it was so bad. As far as my engine goes, I think I dodged the worst of the bullet and just need a turbo, and needed to replace the sheared flywheel bolts. While things are out, I'm taking the chance to upgrade the clutch as it was too easy to slip it, and also rebuild my tranny as well as it needs a 3/4 synchro.

[zed]

did you do any write up as to what it took to get that engine in there.. that's a much easier to find engine.
What running gear.. how it got mated to it.. etc.
I'm very curious.. I might be able to get one of those.