RRC V8 to 300tdi conversion - Page 2





Page 2 of 4 FirstFirst 1 2 3 4 LastLast
Results 21 to 40 of 69
  1. #21
    Join Date
    Jul 2017
    Location
    Cambridge
    Age
    41
    Posts
    69
    Thanked: 35

    Default Re: RRC V8 to 300tdi conversion

    I would rather sort the fueling issue. The RRC just feel better with the V8, diesel is for Toyotas
    I got a Spitronics fitted by a shop in Strand by the previous owners. On the trip to Sossusvlei we done around 6km/l (tarmac sitting at a good speed in SA, prefer not too mention how fast here) No air con, broken.

    On the Western Cape to Okovango we were just below 5, I fitted a roof rack, jerry cans on roof rack and roof top tent. Fully loaded, top speed came down to 145km/h and with the weight on the roof we were keeping it on 120km/h in South Africa. 5km/l included driving through Kgaligadi KAA gate, Kubu island and air con on full blast all the way.

    This is on a 1988 with LT77 5 speed manual and LT230 transer box (manual diff lock)
    Good choice of vehicle! We are planning a 1 year overlanding trip with ours in 18 months. Gullwing doors on rear windows for kitchen and shower, drawers, water tank, heat exchanger, drawers, etc.

  2. The Following User Says Thank You to rangeroverclassic For This Useful Post:


  3. #22
    Join Date
    Oct 2013
    Location
    Howick
    Age
    35
    Posts
    943
    Thanked: 175

    Default Re: RRC V8 to 300tdi conversion

    After reading the latest posts, my take:
    1. Sort out the V8,
    2. Fit a Td5 and box from a Disco 2. These come along fairly cheaply quite often. If you go diesel, you might as well aim for the bigger one

    current: 02 Jeep Cherokee 2.8 CRD swap, and a camping trailer
    previous: 97 Pajero LWB 3.5 V6, 99 Pathfinder R50 3.3 V6, 98 Defender 90 300 TDi bakkie


  4. #23
    Join Date
    Sep 2014
    Location
    Roodepoort
    Posts
    291
    Thanked: 130

    Default Re: RRC V8 to 300tdi conversion

    Quote Originally Posted by Forest Fab View Post
    After reading the latest posts, my take:
    1. Sort out the V8,
    2. Fit a Td5 and box from a Disco 2. These come along fairly cheaply quite often. If you go diesel, you might as well aim for the bigger one
    From what i've heard the Problem with the td5 is you need the motor the box and the harness and computer and possibly keys
    Last edited by whosthejman; 2017/12/11 at 09:40 PM. Reason: Spelling
    Wolverine : 93' Range Rover Classic 3.9L EFI

  5. #24
    Join Date
    Sep 2014
    Location
    Roodepoort
    Posts
    291
    Thanked: 130

    Default Re: RRC V8 to 300tdi conversion

    Quote Originally Posted by rangeroverclassic View Post
    I would rather sort the fueling issue. The RRC just feel better with the V8, diesel is for Toyotas
    I got a Spitronics fitted by a shop in Strand by the previous owners. On the trip to Sossusvlei we done around 6km/l (tarmac sitting at a good speed in SA, prefer not too mention how fast here) No air con, broken.

    On the Western Cape to Okovango we were just below 5, I fitted a roof rack, jerry cans on roof rack and roof top tent. Fully loaded, top speed came down to 145km/h and with the weight on the roof we were keeping it on 120km/h in South Africa. 5km/l included driving through Kgaligadi KAA gate, Kubu island and air con on full blast all the way.

    This is on a 1988 with LT77 5 speed manual and LT230 transer box (manual diff lock)
    Good choice of vehicle! We are planning a 1 year overlanding trip with ours in 18 months. Gullwing doors on rear windows for kitchen and shower, drawers, water tank, heat exchanger, drawers, etc.
    Im working on an average 5000km trip and at your figuers its about R13000 at our fuel price (R14.50) on fuel alone

    If im working on my figure R16000
    ( i know there are other factors to consider to the above)

    Hence the consideration and making it viable to change the motor to diesel hoping fuel economy would increase

    Any body want to comment in a 300tdi fuel economy.

    Even if i can get it to 8 km/l i would be saving massively on a trip- repaying the conversion on fuel saved
    Wolverine : 93' Range Rover Classic 3.9L EFI

  6. #25
    Join Date
    Oct 2013
    Location
    Howick
    Age
    35
    Posts
    943
    Thanked: 175

    Default Re: RRC V8 to 300tdi conversion

    Quote Originally Posted by whosthejman View Post
    Frim what ive heard Problem with the td5 is you need the motor the box and the harness and computer
    Yes, you'd need a complete donour car. Even then it won't be easy, but with some patience anything is possible.
    It actually got me thinking and I was looking at RRCs this morning
    Don't tell my wife!

    current: 02 Jeep Cherokee 2.8 CRD swap, and a camping trailer
    previous: 97 Pajero LWB 3.5 V6, 99 Pathfinder R50 3.3 V6, 98 Defender 90 300 TDi bakkie


  7. The Following User Says Thank You to Forest Fab For This Useful Post:


  8. #26
    Join Date
    Oct 2013
    Location
    Howick
    Age
    35
    Posts
    943
    Thanked: 175

    Default Re: RRC V8 to 300tdi conversion

    I used to get around 10km/I with my 1998 Defender 90 Tdi. If you go auto in your RRC, you might get a bit less, but I think it's a good ball park. At least it's what I used to get

    current: 02 Jeep Cherokee 2.8 CRD swap, and a camping trailer
    previous: 97 Pajero LWB 3.5 V6, 99 Pathfinder R50 3.3 V6, 98 Defender 90 300 TDi bakkie


  9. The Following User Says Thank You to Forest Fab For This Useful Post:


  10. #27
    Join Date
    Sep 2014
    Location
    Roodepoort
    Posts
    291
    Thanked: 130

    Default Re: RRC V8 to 300tdi conversion

    Quote Originally Posted by Forest Fab View Post
    Yes, you'd need a complete donour car. Even then it won't be easy, but with some patience anything is possible.
    It actually got me thinking and I was looking at RRCs this morning
    Don't tell my wife!
    Its an amazing car you will find difficult to sell as it becomes part of the family
    Your wife will have a love hate relationship with it.
    However when she hears the v8 and drives in it
    Shell turn to u and ask : when are we going away again

    Please do post pics if u decide on anything
    Wolverine : 93' Range Rover Classic 3.9L EFI

  11. #28
    Join Date
    Oct 2013
    Location
    Howick
    Age
    35
    Posts
    943
    Thanked: 175

    Default Re: RRC V8 to 300tdi conversion

    Agh, it really is just another one of those "I'd like to have" cars... If only I could make all of these ideas I have come true...

    Ps: but if I can help make your ideas come true in any way, I'll gladly do so
    Last edited by Forest Fab; 2017/12/11 at 10:06 PM.

  12. #29
    Join Date
    Nov 2007
    Location
    Kathu
    Age
    59
    Posts
    9,356
    Thanked: 2889

    Default Re: RRC V8 to 300tdi conversion

    First calculation with a conversion is ratio`s. I am sure a move from petrol to diesel will end in a diff ratio change.
    It is not what you buy its what you build.

  13. #30
    Join Date
    Sep 2014
    Location
    Roodepoort
    Posts
    291
    Thanked: 130

    Default Re: RRC V8 to 300tdi conversion

    Quote Originally Posted by grips View Post
    First calculation with a conversion is ratio`s. I am sure a move from petrol to diesel will end in a diff ratio change.
    Please elaborate
    Wolverine : 93' Range Rover Classic 3.9L EFI

  14. #31
    Join Date
    Nov 2007
    Location
    Kathu
    Age
    59
    Posts
    9,356
    Thanked: 2889

    Default Re: RRC V8 to 300tdi conversion

    I have not study your case but several others. First what is the max rpm on the 300tdi? With the current ratio`s and the v8 what is the engine rpm at 120km/h. Many petrol engines do 3000rpm at this speed and are happy. A diesel at 3000rpm could be close to its red line.
    It is not what you buy its what you build.

  15. #32
    Join Date
    Oct 2013
    Location
    Howick
    Age
    35
    Posts
    943
    Thanked: 175

    Default Re: RRC V8 to 300tdi conversion

    Quote Originally Posted by grips View Post
    First calculation with a conversion is ratio`s. I am sure a move from petrol to diesel will end in a diff ratio change.
    At least this way (diesel engine in petrol rig) you can compensate with bigger tires.

    Quote Originally Posted by whosthejman View Post
    Please elaborate
    Petrol engined vehicles usually have higher reduction ratios, in other terms your engine will rev higher for a same given speed.
    Diesel engines don't like to rev too much, and you'll end up either having to drive more slowly, or rev it more and use more fuel.

    But if you fit bigger tires it will bring the revs down.

    current: 02 Jeep Cherokee 2.8 CRD swap, and a camping trailer
    previous: 97 Pajero LWB 3.5 V6, 99 Pathfinder R50 3.3 V6, 98 Defender 90 300 TDi bakkie


  16. #33
    Join Date
    Oct 2011
    Location
    Midrand
    Age
    48
    Posts
    2,933
    Thanked: 969

    Default Re: RRC V8 to 300tdi conversion

    Grips makes a very good point and I agree the donor car makes more sense. Then you can take the disco diffs and drivetrain and shove it all into the rangie.

    They do this sort of thing in the uk every day and I am
    Sure there are plenty of articles on LRO etc on the conversion.

    If you can wield a spammer and sort of play with a welding rod, or have a mate who can it is really not that hard.
    You can then part out the disco body bits and the rAngie drive train and recover a good chunk of the conversion costs.

  17. #34
    Join Date
    Jan 2013
    Location
    Pretoria
    Age
    22
    Posts
    751
    Thanked: 196

    Default Re: RRC V8 to 300tdi conversion

    Quote Originally Posted by stephenplumb View Post
    Grips makes a very good point and I agree the donor car makes more sense. Then you can take the disco diffs and drivetrain and shove it all into the rangie.

    They do this sort of thing in the uk every day and I am
    Sure there are plenty of articles on LRO etc on the conversion.

    If you can wield a spammer and sort of play with a welding rod, or have a mate who can it is really not that hard.
    You can then part out the disco body bits and the rAngie drive train and recover a good chunk of the conversion costs.
    Just remember that the diff ratios on all Range Rover classics Disco 1+2 and defender was the same. The differt ratios were mostly in the 5th gear or transferbox between diesel and petrols.
    Last edited by JeandreDiedericks; 2017/12/12 at 10:03 AM.
    2005 Land Rover Discovery 3 V8 (Will allways end up with an V8)
    1967 Land Rover Series 2A 3.5 V8 (The Green Machine)
    196? Land Rover Series 2 V8 100" (The Coiler)
    2007 Subaru Forester XT 2.5T (The Daily)

    Ex.
    Discovery 1:TDI and a V8. Discovery 2 V8. Discovery 3 TDV6.
    Freelander 2 TD4


  18. The Following User Says Thank You to JeandreDiedericks For This Useful Post:


  19. #35
    Join Date
    Mar 2008
    Location
    De Wildt
    Age
    57
    Posts
    37,759
    Thanked: 14082

    Default Re: RRC V8 to 300tdi conversion

    Quote Originally Posted by grips View Post
    First calculation with a conversion is ratio`s. I am sure a move from petrol to diesel will end in a diff ratio change.
    all the RRC and D1s and Defenders, whether petrol or diesel, had the same diff ratios.

    the difference was in the hi range gear in the transfer case
    2012 Jeep Sahara Unlimited 3.6 V6
    Percivamus

  20. #36
    Join Date
    Nov 2007
    Location
    Kathu
    Age
    59
    Posts
    9,356
    Thanked: 2889

    Default Re: RRC V8 to 300tdi conversion

    Quote Originally Posted by jelo View Post
    all the RRC and D1s and Defenders, whether petrol or diesel, had the same diff ratios.

    the difference was in the hi range gear in the transfer case
    Thanks I do not know Landies Success of a conversion lays in the ratios.
    It is not what you buy its what you build.

  21. #37
    Join Date
    Nov 2007
    Location
    Kathu
    Age
    59
    Posts
    9,356
    Thanked: 2889

    Default Re: RRC V8 to 300tdi conversion

    Quote Originally Posted by Forest Fab View Post
    At least this way (diesel engine in petrol rig) you can compensate with bigger tires.


    Petrol engined vehicles usually have higher reduction ratios, in other terms your engine will rev higher for a same given speed.
    Diesel engines don't like to rev too much, and you'll end up either having to drive more slowly, or rev it more and use more fuel.

    But if you fit bigger tires it will bring the revs down.
    Do you think a 300TD can handle 35`s
    It is not what you buy its what you build.

  22. #38
    Join Date
    Mar 2008
    Location
    De Wildt
    Age
    57
    Posts
    37,759
    Thanked: 14082

    Default Re: RRC V8 to 300tdi conversion

    Quote Originally Posted by grips View Post
    Do you think a 300TD can handle 35`s
    yes

    the 300TDi can be tweaked to over 100kW and 350Nm: the question then shifts to whether the side shafts can handle the 35s...........
    2012 Jeep Sahara Unlimited 3.6 V6
    Percivamus

  23. #39
    Join Date
    Oct 2013
    Location
    Howick
    Age
    35
    Posts
    943
    Thanked: 175

    Default Re: RRC V8 to 300tdi conversion

    Quote Originally Posted by grips View Post
    Do you think a 300TD can handle 35`s
    Depends on the ratios

    current: 02 Jeep Cherokee 2.8 CRD swap, and a camping trailer
    previous: 97 Pajero LWB 3.5 V6, 99 Pathfinder R50 3.3 V6, 98 Defender 90 300 TDi bakkie


  24. #40
    Join Date
    Nov 2007
    Location
    Kathu
    Age
    59
    Posts
    9,356
    Thanked: 2889

    Default Re: RRC V8 to 300tdi conversion

    Quote Originally Posted by Forest Fab View Post
    Depends on the ratios
    With that I agree. My experience with the well over 20 conversions i have done is you so not fix ratios to satisfaction with tyres.

    I would only run 35`s if there is more than 200kw and 500nm available
    It is not what you buy its what you build.

Page 2 of 4 FirstFirst 1 2 3 4 LastLast

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •