View Full Version : Engine conversion petrol or diesel
RRV80
17th January 2010, 09:13 AM
I have a 94 softdash range rover and i'm looking at doing an engine conversion, originally i was going to stick to petrol and stick a 4.6 in, but ive been looking around and am starting to think a diesel would be better, my biggest issue is i dont want any less power than the 3.9, i have seen a few td5, reasonably cheap with low k's, and i dunno much about isuzu conversion and its its figures but i know the 3.9 has more power and torque than a 3.9, which brings me back to petrol cause i dont want to really go down the chev v8td route mainly due to weight
Dougal
17th January 2010, 09:41 AM
Funnily enough, I'm currently looking for a 94 soft-dash body to put on my Isuzu powered 85 chassis.
The Isuzu with a few screws turned can put out more torque than an LS1. So yeah it's not worth comparing torquewise to a 3.9 V8. The 3.9's had about 190hp, the isuzu can beat that too. You will however be stuck with a manual gearbox unless you want to get creative. I prefer manuals but I know many people don't.
For a TD5 conversion you'd probably be looking for a rolled D2 donor. I don't know how easy or cheap these are to find.
nzlandies
17th January 2010, 10:44 AM
4.6 is the only option as Range Rovers are not vegetarians.
4.6 will use less fuel than the 3.9, according friends who have done it, because you are not up it all the time, and is an easy conversion, especially if you use your existing front cover and injection etc. Isuzu in it would be blasphemy and turn a quiet, powerful and refined vehicle into a tractor. I have driven a 300tdi classic and hated it. It wasn't the power difference, it was tuned up and went well. It was just not a Rangie. If you want td5 in one then buy a disco2, its the same thing any way and heaps better to drive. Diesel disco or Defender, perfect sense, but I raise two fingers to a diesel Range Rover. The thing that makes a Rangie what it is, is the V8 up front.
Do the right thing, you know you want to!
Slunnie
17th January 2010, 10:56 AM
For a TD5 conversion you'd probably be looking for a rolled D2 donor. I don't know how easy or cheap these are to find.
A Defender TD5 may be easier as unlike the Disco2 TD5 it doesn't have a thousand other integrated electonic units that come with it and which will fault if not connected and working properly.
If it were me, I'd be doing the 4.6. Rangies were not meant to have diesels in them.
justinc
17th January 2010, 11:09 AM
A Defender TD5 may be easier as unlike the Disco2 TD5 it doesn't have a thousand other integrated electonic units that come with it and which will fault if not connected and working properly.
If it were me, I'd be doing the 4.6. Rangies were not meant to have diesels in them.
:dbcry::dbcry::dbcry::dbcry::BigCry::BigCry:
JC
Dougal
17th January 2010, 11:33 AM
Isuzu in it would be blasphemy and turn a quiet, powerful and refined vehicle into a tractor.
I'm curious if you've been in or near a 4BD1T powered rangie? I know there aren't many in NZ and I know you haven't been in mine.
300tdi's are not comparable.
Slunnie
17th January 2010, 11:38 AM
[/B]
:dbcry::dbcry::dbcry::dbcry::BigCry::BigCry::BigCr y::BigCry:
JC
Sorry, I meant unless it was a '92 Sherwood with a 4BD1 turbo I/C or a '93 Vogue LSE with a 300Tdi. :lol2:
:(
Blknight.aus
17th January 2010, 11:41 AM
Diesel it...
if you go mechanical old school diesel come see me for some tweakery
if you go new school electronic go see tombie.
call me pedantic..
if a diesel can win Le Mans.........
Bigbjorn
17th January 2010, 03:44 PM
Joe Hawkes at Airlie Beach has an aluminium 3-53N Detroit that needs a good home. Brand new, said to weigh 200 kilos. fan to clutch. A bonus is the exhaust note.
nzlandies
17th January 2010, 03:44 PM
OK you can have the TDV8, only cos its V8! like it should be and somebody has to do it. It will eat your gearbox just like a 4bdt will in the end and be insanely complicated to fit but what a truck that would be. JE have done the supercharged V8 in defenders and one of their techs has one in his classic:)
4.6 block and heads. You will have it fitted in couple of days and not have made a fruit salad out of what I imagine is very nice vehicle.
A four cylinder diesel in a Range Rover..:toilet:
Big smoooooth V8...mmmmmmm:BigThumb:
Reads90
17th January 2010, 04:19 PM
I'm curious if you've been in or near a 4BD1T powered rangie? I know there aren't many in NZ and I know you haven't been in mine.
300tdi's are not comparable.
mm i have and wish i had not. The noise was unbeliavable .
I had a 200 Tdi Classic rangie and my option for you would be a 300 Tdi engione as it was a factory fitment into the Soft dash rangie. So parts and parts manual are aviable of the shelf for the conversion.
Just get your self a 300 Tdi and gearbox out of a Disco and it will fit straight in with no worries. And as i said i have a Land Rover work shop maunal for the RRC 300 Tdi
Dougal
17th January 2010, 05:06 PM
mm i have and wish i had not. The noise was unbeliavable .
Could you expand on this a little more. Mine sounds almost exactly like these ones: The noise is similar to a 200/300tdi
YouTube- Custom 2000 Land Rover Discovery 2 TDI for sale.
YouTube- Land Rover Isuzu 4BD1t
Randy's one is noisier because he's changed the factory rocker cover for a single skin aluminium one. But with the power levels he runs, he can do what he likes.
YouTube- first time starting the twin turbo isuzu diesel
Same engine with the stock cover on:
YouTube- Isuzu 4BD1T diesel in 67 F100
That boost gauge reads 60psi:
YouTube- Twin turbo isuzu powered diesel F100
big guy
17th January 2010, 07:31 PM
Lots of RRC's came standard with a diesel just not in australia.
I have driven two and must say, its just not a Rangie anymore as there was just no smooth power and just clatter and no urge. One was tuned to the max and only once under way did it perform. We than towed a car trailer and again no performance, a dud.
I have had also 2 RRC's with 4.6's in it. One was a standardone the other I bought from a fella in Quensland who was funnily enogh a diesel mechanic. He built up a high comp motor with Haltech computer and extractors plus mandrel pipes.
The cam in it was for towing and the auto was slightly re-built but nothing series.
What a brilliant machine, He used the old block and from outside the engine no's read standard and hence no rego issues. the plenum cover read 4.6 and by God, it hauled serious arse and still does.
i still regret selling it but the little electrical issues it had due to age drove me nuts.
It was dynoed at 140kw at the wheels and was as quick off the line to 60 as a VL commodore. Not Porsche fast but very quick for a RRC.
I say go the refined 4.6 and do High compression with 4 bolt mains, good head work and cam with Wolf or Haltech management system.
The thing $8-12 grand with some gearbox work and exhaust to suit and make it sing.
Happy days.
rovercare
17th January 2010, 08:57 PM
Rangies were not meant to have diesels in them.
:p:p:p
Dougal
17th January 2010, 09:06 PM
Rangies were not meant to have diesels in them.
It's so satisfying being branded a heretic.:D
Sprint
17th January 2010, 09:53 PM
Joe Hawkes at Airlie Beach has an aluminium 3-53N Detroit that needs a good home. Brand new, said to weigh 200 kilos. fan to clutch. A bonus is the exhaust note.
will you PLEASE stop giving me bad ideas?
Blknight.aus
17th January 2010, 11:24 PM
sok its likely to get a home in the new thing thats yet to be named...
jsut got to get my hands on another box to mount it to.
bigcarle
18th January 2010, 03:29 AM
3-53 GM is that still a 2 stroke? i have driven 6-53 bit of a screamer!!:wasntme:
Dougal
18th January 2010, 07:08 AM
Diesel P38's here are going for 2-3 times the price of the same year V8. Despite them having a lower spec and usually very high km. Classics it's harder to tell because the age and condition varies more.
Maybe someone should build a 4BD1T powered P38.:angel:
nzlandies
18th January 2010, 07:13 AM
Diesel P38's here are going for 2-3 times the price of the same year V8. Despite them having a lower spec and usually very high km. Classics it's harder to tell because the age and condition varies more.
Maybe someone should build a 4BD1T powered P38.:angel:
Make sure is red one, then you can just change the Range Rover badge for one that says Massey Ferguson!
Dougal
18th January 2010, 07:27 AM
Make sure is red one, then you can just change the Range Rover badge for one that says Massey Ferguson!
It will pull like one and use as little fuel too.
nzlandies
18th January 2010, 07:36 AM
It will pull like one and use as little fuel too.
I don't doubt that it is a good motor and all of that. It seems pretty well trusted and respected. But in a Rangie it is just not well......ethical:angel:
Dougal
18th January 2010, 07:47 AM
I don't doubt that it is a good motor and all of that. It seems pretty well trusted and respected. But in a Rangie it is just not well......ethical:angel:
Have you ever driven or ridden in one?
It's not only ethical, it's a whole lot of fun. Sure it puts the ****s up the petrol heads, but that's not my problem:cool:
p38arover
18th January 2010, 09:15 AM
If it were me, I'd be doing the 4.6. Rangies were not meant to have diesels in them.
Now that you've made JC cry, I won't give you the part no. for the 300Tdi conversion kit produced by LR. (Yes, there is such a thing, I have the brochure on the kit).
350RRC
18th January 2010, 09:38 AM
Now that you've made JC cry, I won't give you the part no. for the 300Tdi conversion kit produced by LR. (Yes, there is such a thing, I have the brochure on the kit).
Caution! Spell police on duty.
cheers, DL
PAT303
18th January 2010, 12:39 PM
I don't doubt that it is a good motor and all of that. It seems pretty well trusted and respected. But in a Rangie it is just not well......ethical:angel:
Drive a 3.0Td model,very smooth,very refined and mine was still pulling hard WELL over the legal speed limit driving home from Perth the other night.The 4.6 is a good motor but it's hard to go past the Td when it got 900k's from 89 ltres sitting on 120k's/hr loaded with the family and towing a trailer!!. Pat
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