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Thread: Any built 300tdi D1 owners here?

  1. #1
    Join Date
    Jun 2009
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    Alexandria, Va.
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    Default Any built 300tdi D1 owners here?

    If so, how does the truck behave? How does the motor cope with bigger tires and the added weight?

  2. #2
    Join Date
    Sep 2007
    Location
    Longmont CO
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    682
    My 110 has some mods. It has the 2.8 TGV turbo set up and the pump is turned up a bit. It also has a full width IC and a High Flow head from Turner engineering. Exhaust is next.
    It is a workhorse, pulling trailers and lots of gear. with 33" tires and the 1.4 box it pulls 70 fully loaded on the hills (at 5200 feet) around here in Colorado (what oxygen?) Unloaded it'll do 75-80.
    I shut it down at 220 degree's engine temp or anything over 1000 degree's at the EGT (post turbo)
    It's also got a RTT helping with the aerodynamics.
    If I had a want for anything it would be a lower first gear around town, once it's moving it's fine.
    After putting on the turbo I actually feel as if the engine could handle an overdrive. I will do that but I'll likely put lower gears in the diffs so I can have a lower final drive in first.
    These engines are so sensitive to ambient temps, on a cold day I can certainly go faster.
    I will be experimenting with a bigger AL Radiator and a non clutch fan to see how these effect cooling.
    Cheers!

    Keith
    04 Dodge 3500 4X4 CUMMINS POWERED!
    RT1 '97 Disco SD (on steroids) Sold
    RT2 '97 Disco XD (built to rock)
    RT110 '85 110 (Getting bigger, badder and better)
    '95 RRC LWB (Sadly it is sold )
    '67 S2a 109 SW (someday I'll finish it) Sold...

  3. #3
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    Jun 2009
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    Just wondering about how the 300tdi puts up with the weight of a built D1. Sounds like it does okay with a 110 but it also sounds like youve done quite a bit of work on it. Do you have to change to the 1.4 hi gear? Can you instead run different axle ratios? I think I read that 4.10's will do the same thing?

  4. #4
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    There is a guy named Dale that goes by Rovertrader here and I know he's had a few diesel Disco's. I'm not sure if they were 1's or 2's.
    ~Matt
    97 Land Rover DI SD 5 speed- Camel Trophy-esq build
    04 Land Rover DII ARB, OME Med lift, seat heaters....
    ---------------------------------------------------
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    It's not the destination that matters.

  5. #5
    Join Date
    Sep 2007
    Location
    Longmont CO
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    682
    Do the math. .75X1.4X3.54=3.717 or .75X1.2X4.10= 3.69. Pretty close.
    A D1 will have better aerodynamics than a 110 but it will weigh about the same, but theoretically can't carry as much (?).
    Even stock the 110 does fine if you don't ming loosing drag races with Yugo's.
    With the mods I've done I can now beat some Honda's..
    Cheers!

    Keith
    04 Dodge 3500 4X4 CUMMINS POWERED!
    RT1 '97 Disco SD (on steroids) Sold
    RT2 '97 Disco XD (built to rock)
    RT110 '85 110 (Getting bigger, badder and better)
    '95 RRC LWB (Sadly it is sold )
    '67 S2a 109 SW (someday I'll finish it) Sold...

  6. #6
    Join Date
    Sep 2008
    Location
    Huntsville, AL.
    Posts
    676
    Thanks for the math Keith. I have a few leads on a 1.4 case for my truck but nothing substantial yet. Crossing my fingers to have one by the end of summer.
    In search of Unicorn White.

  7. #7
    Join Date
    Jul 2005
    Location
    Westminster, CO
    Posts
    477
    The 1.4 t-case is definitely worth it. When building the Bio Bonatti 110, it was originally had a 1.2 mated to the 300 Tdi. Big mistake. A 1.4 took its place shortly thereafter.
    Nathan Hindman
    Discover the world
    http://www.pangaea-expeditions.com

  8. #8
    Join Date
    Aug 2008
    Location
    Cookeville, TN
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    179
    Quote Originally Posted by Viggen View Post
    If so, how does the truck behave? How does the motor cope with bigger tires and the added weight?
    I'll let ya know in a few weeks.
    Chris Robinson

    14' VW Passat SE TDi (hers)
    97' Land Rover NAS DI
    00' F350 dually, crewcab, 4x4, 7.3 Powerstroke, 6-speed manual
    06' BMW F650GS Dakar
    03' Yamaha TW200 (sons scooter)

  9. #9
    Join Date
    Aug 2005
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    2,304
    I have a 300 in a Range Rover Classic which is pretty close to the D1. With the auto it was pretty anemic, but that could be because the motor was tuned poorly. After the manual swap and re-timing, the truck went fine. Not fast off the line (need the EVO kit for that), but would do 75 to 80 on the highway and cruise like that all day so long as no slow traffic joined in front, no hills were involved and the wind stayed tail-wards.

    Make no mistake this is not a fast combination and anyone who uses anything other than a 110 tdi as a daily driver will be pretty shocked by the performance. But there are tricks like the EVO kit that help tremendously with drivability. No rocketship, but good mileage, great torque and that fantastic tdi sound make it all worth it.

    cheers

  10. #10
    Join Date
    Apr 2008
    Location
    Marshville, NC, USA
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    D-I Tdi 5 spd tuned correctly w/ 32's is a very sweet ride. Stock gears and T-case was a tad weak off the line, but super on the highway. Offroad, no issues. However, my point of reference is a new Tdi 130 w/ 255s and it was poor off the line, and not good on steep grades fully loaded- needed 4.10s badly. The Tdi XD 5 spd went to a first time Rover owner who loved it... feel free to contact for any add'l info. Also, pls note we don't mess with the motor except to tune to factory settings as it seems to be the best compromise and we usually sell them quite quickly and said settings please the most folks. The Tdi is notorious for not being quick off the line- even in the 4cyl diesel world- a bit more of a revor(pun intended)
    D-90 4.6
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