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Thread: 2.8L TGV Reliability / repairability

  1. #11
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    What would be the benefit of a full replacement 2.8L over rebuilding the 300Tdi and upgrading the turbo the Variable one and going a bigger rad/intercooler? Will this leave me with more space in the engine bay? Will it help keep cool?

    Is a good rebuild be like getting a new engine? Or is it just going to slightly prolong its life? (engine seems to run fine now but has almost 340K’s and i have little history on it)

  2. #12
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    the 2.8 is ment to have some benefits over the 300tdi. It has redesigned galleries in the block for better cooling, it has a real engine oil cooler. It is a bigger bore and stroke (just a turbo on a tdi wont net you the torque) apples for apples on rad and intercooler, ie what ever upgrade you make will benefit either engine. It also has the vacuum off the alt on the 2.8. It is the same physical size as the 300tdi, so nothing gained or lost, the turbo outlet is facing rearward on the 2.8....

    if you move the 2.8 back via a Ashcroft bellhousing, you may have to mod a little of the bulkhead passenger foot well for the exhaust, but if you are having to fab new mounts for the engine i dont see this as a big deal....

  3. #13
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    Quote Originally Posted by roller View Post
    Is a good rebuild be like getting a new engine? Or is it just going to slightly prolong its life? (engine seems to run fine now but has almost 340K’s and i have little history on it)
    A good rebuild (and good is the operative word) should be superior to a new engine. Rebuilding gives you the chance to optimise all the internal components, as opposed to a factory engine which is slapped together.

  4. #14
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    The TGV also has a better crank (forged instead of cast) better, more rigid rods and supposedly a better chamber in the piston.

  5. #15
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    Quote Originally Posted by rick130 View Post
    The TGV also has a better crank (forged instead of cast) better, more rigid rods and supposedly a better chamber in the piston.
    lets hope so!

  6. #16
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    these are the figures quoted for the turbo and intercooler upgrade. the full 2.8l only quotes 277lbf ft at the same RPM

    is this just sales talk or will it strain the old Tdi be too much? cause that type of improvement looks plenty for me if its reliable..

    PERFORMANCE
    Standard Vehicle Stage 2

    Maximum power :- 111 bhp @ 4,000 rpm 132 bhp @ 4,000 rpm
    Maximum torque :- 195 lbf ft @ 1,800 rpm 258 lbf ft @ 1,400 rpm

  7. #17
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    Quote Originally Posted by BigJon View Post
    A good rebuild (and good is the operative word) should be superior to a new engine. Rebuilding gives you the chance to optimise all the internal components, as opposed to a factory engine which is slapped together.

    So the question becomes who can do a "Good" rebuild in melbourne and what type of $$$ am i looking at?

    my main priority has always been to make this car better than new so i can get a good 20 years of fun out of it, before repeating the process.


  8. #18
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    One of the reasons I suggested a used tdv6 was cost v a 2.8 td new engine,from what ive heard one of those installed has been put at the same or up to 80% more than a tdv6 even with the 3k GBP(Around $4500-4800 AUD) electronics. And as we are going to have the 2.7tdv6 running around in territories for the next 5 years parts will be cheap as well as cheap engines(hail,tail enders writeoffs etc) compared to a brand new 2.8tdi from brazil.
    here are the pommy quotes for a conversion: around 6500 gbp or $10500 AUD
    Land Rover conversions - M&D Engineering

  9. #19
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    I had a friend who suggested the V6 but I’m keen to stick to a mechanically injected diesel... the type of driving i do requires minimal electrics, (iv been known to park in 4-5 feet of water or mud on an all to regular occasion)

  10. #20
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    IMO you want to leave the 300tdi and the 2.8tgv stock output except for maybe a better flowing exhaust and better intercooler. Its not just the engine, but the whole engineering package including the dynamics of the vehicle

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