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  #61  
Old July 1st, 2013, 03:27 PM
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My bias is the 2.5 that can really breath (Turner flowed topend) and a vnt, and one of the new 242mm heavy duty clutches.
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  #62  
Old July 1st, 2013, 03:51 PM
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Until you get into the big V8 diesels there is going to be limited power. All of these will perform well within limitations. The issue that comes to mind is the cost to do a conversion. None of these are cheap. This is where Robert Davis' Mercedes OM617 conversion will shine. You'll still have to fork over the cash to get the conversion bits but then the costs drop off. There were over a million Mercedes 3.0 5 cylinders imported into the US. Let's clarify that as 'fully legal' diesel engines that can be had for about $400 in the picknpulls and maybe double that at other yards? Where will you find a good running 200, 300, 2.8 or TD5 for that kind of coin? Plus, these engines can be tuned to produce healthy hp/tq that mimmicks a 4.0/4.2 V8 with better mpg. Plus, you can run WVO blends on the sly because it isn't a common rail injection system. Single wire dirt cheap diesel power is hard to beat.
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  #63  
Old July 2nd, 2013, 08:19 AM
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I am not so sure the "cheap and good" om617's exist in my area....I wish they did as I am very intrigued. The tdi's get about 25 (lead foot and stage II) to 33 (super gentle) mpg. Not sure what the om617's get but thought I read 22-25....


jb
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  #64  
Old July 2nd, 2013, 08:54 AM
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Diesel nirvana is relative. The engines bantied about in this thread are very different. Some are low rpm engines and some are high rpm screamers, some are direct injection some are not, some easy to service others not so much. Some have low power bands that aren't as usuable for a defender application. Tdi single wire technology is just that- ancient technology. I have driven Roberts Isuzu powered RRC and the Merc powered 110. Both were superior to tdi's in driveablity and performance.
There is a preference amongst many owners to stick with engines made by Rover, Robert stopped playing in that sand box long ago.
As far as clutches for Tdi's go, I'd suggest the 130 setup. I would also add that the work I have seen from Turner has been far from inspiring, in fact their quality control and attitude towards quality leaves quite a bit to be desired. Perhaps Renching will chime in here on his experience/nightmare with a Turner head.

My .02, if you are on the East coast, go drive some of these guys trucks. Marks 2.8 is also one of the heaviest 110's you will see, Robert just sold the merc powered 110 but may be able to arrange a drive, and the isuzu is with his son in NY or Va depending on school. Tdi's and Td5's contact me.
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  #65  
Old July 2nd, 2013, 10:22 AM
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Thanks....that OM617 is sounding better and better....and the frank data really helps, thank you again.

I do have to do some runs up on a 45mi drive on a highway and would like to be able to feel ok on the road too....

Is the OM617 "easy to work on" so to speak. I have independents around here that can deal with it, but the guru land rover types may balk.... I can do basic stuff, but for pulling an engine or gaskets, I usually go to a professional. Also assuming the chain, if fresh, is good for a LONG time.




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  #66  
Old July 2nd, 2013, 10:35 AM
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I'm touting Robert's Mecedes conversion having hands-on knowledge of it. I was even heading that direction in my 110 but have decided a GM LT1 would serve me much better for towing a loaded car trailer. I also considered it for my '90 RR but that would be a one-off project that would take great pains to accomplish properly. As such, it wil be getting the 300TDi and Ashcroft supplied ZF-HP22/LT230 1.4.
Outside of that, Uncle Dougie is your 'go to' man for the TDi or TD5. You owe me a beer, Richard.
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  #67  
Old July 2nd, 2013, 12:34 PM
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That sounds very optimistic. The most I have ever gotten is 28.3MPG (freeway). Stop & go city traffic (with lead foot) is usually around 15-16MPG. Was around 16-18 before I installed the VNT.

Quote:
Originally Posted by jcb-memphis View Post
The tdi's get about 25 (lead foot and stage II) to 33 (super gentle) mpg. Not sure what the om617's get but thought I read 22-25....


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  #68  
Old July 2nd, 2013, 12:43 PM
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There is no way in god's green earth any Defender is getting 33 (US) mpg. 25, maybe 27 tops driving slowly on the highway on stock tires and suspension height.
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  #69  
Old July 2nd, 2013, 01:11 PM
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Quote:
Originally Posted by Red90 View Post
There is no way in god's green earth any Defender is getting 33 (US) mpg. 25, maybe 27 tops driving slowly on the highway on stock tires and suspension height.
Max I have gotten was 25, although Pendy said he had couple higher.
MPG seemingly drops signifigantly once you get above the optimum rpm . The difference between 62mph and 70 on mpg is quite a bit with tdi's. Td5's not so much.
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  #70  
Old July 2nd, 2013, 01:59 PM
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Quote:
Originally Posted by Uncle Douglas View Post
Max I have gotten was 25, although Pendy said he had couple higher.
MPG seemingly drops signifigantly once you get above the optimum rpm . The difference between 62mph and 70 on mpg is quite a bit with tdi's. Td5's not so much.
I'm pretty certain the main influence from 62 to 70 is the wind resistance. These things are bricks, so the proportion of power loss due to wind resistance over other losses is much higher than a "normal" car. Drag increases with the square of speed. 62 to 70 is 27% more drag. The mileage hit is not quite that high as there are other thing contributing to power loss.

From my experience, I would say you are taking hits on mileage from the engine speed efficiency loss over 2800 rpm. From 2000 to 2800, it would be hard to see a big difference.
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  #71  
Old July 2nd, 2013, 02:04 PM
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at 2800, I'm doing about 65-70mph in my configuration, and I usually run right around 70. going to be interesting to see what my 1.4 to 1.2 conversion does next month.
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  #72  
Old July 2nd, 2013, 02:13 PM
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Quote:
Originally Posted by Overlander View Post
at 2800, I'm doing about 65-70mph in my configuration, and I usually run right around 70. going to be interesting to see what my 1.4 to 1.2 conversion does next month.
For me, it just made me drive faster....
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  #73  
Old July 4th, 2013, 12:26 PM
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The other option of course is the new Ford 3.2 PowerStroke, which is now California and EPA legal....

I don't know anyone who has stuffed it into a defender yet. But you certainly won't have a parts problem.
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  #74  
Old July 4th, 2013, 12:34 PM
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The other option of course is the new Ford 3.2 PowerStroke, which is now California and EPA legal....

I don't know anyone who has stuffed it into a defender yet. But you certainly won't have a parts problem.
I thought Bell auto did it.
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  #75  
Old July 4th, 2013, 12:36 PM
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And Nene Overland sells trucks with the engine: http://www.defendericon.com/land-rov...2-sport-wagon/
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  #76  
Old July 4th, 2013, 01:55 PM
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Bell does the conversion for Nene, who just market it and say it's theirs.

Bell's (BAS) thread of the conversion on his own truck: http://www.defender2.net/forum/topic14091.html?

"Big Steve" user on defender2, who does some spannering with BAS i think also did a conversion: http://www.defender2.net/forum/topic14433.html?


(the "?" is needed at the end of the link i think)
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  #77  
Old January 4th, 2014, 05:55 PM
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Any updates to the 3.2?

https://media.ford.com/content/fordm...iesel-mak.html

Sounds delicious. Probably get up to 240 HP and 400 LB FT with the common mods. And over 20 MPG

Wonder who makes the auto box in that application. I assume its "better" than the Ashcroft ZF for this.

And who's going to be the subject matter expert on this conversion on this side of the pond? I predict this engine will become uber popular here for Defender transplants. I know I'll be in line for a few conversions unless something better comes out in the diesel arena.
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  #78  
Old January 4th, 2014, 06:06 PM
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So the tranny is a ZF that Ford builds and is behind all there F150s. It handles their 6.2 engine. Guess the question is if it fits...one can be had for $1k!
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  #79  
Old January 4th, 2014, 06:15 PM
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Quote:
Originally Posted by SMac View Post
So the tranny is a ZF that Ford builds and is behind all there F150s. It handles their 6.2 engine. Guess the question is if it fits...one can be had for $1k!
Ford does have an auto box in its ROW ranger equipped with the 3.2 diesel. It's a six speed....now to figure out the model number!
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  #80  
Old January 4th, 2014, 08:51 PM
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Bump...for the Yankee diesel gurus...
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