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Thread: 300 TDi Torque/Power Curves

  1. 7th May 2014, 02:34 PM #61
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    isuzu110
    isuzu110 is offline Master Supporter
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    See my post re the radiator mod

    Defender 300TDI Radiator Tropical Mod

    After this mod, I was seeing a radiator temp drop by 10 deg, but complicated by the fact that i changed the viscous hub at the same time. Not sure which mod contributed to what % of the temp drop
    '95 110 300TDI, F&R ARB Lockers, Twine Shower, Aux Sill Tank, Snorkel, Cargo barrier, 9 seats, swingaway wheel carrier, MadMan EMS2
    '85 110 Isuzu NA 4BE1 3.6l Diesel, 0.996 LT-95, Rear Maxi (SOLD)
    '76 SIII 109" Nissan ED33 5-SP Nissan GBox (SOLD)
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  2. 7th May 2014, 02:41 PM #62
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    isuzurover
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    Quote Originally Posted by Dougal View Post
    I only have the 300tdi RRC here Pat. Can you provide some pics of the 300tdi defender to show how much or little room there is around the turbo side?
    plenty of room for a compound turbo setup if you move the washer bottle.

    http://i1201.photobucket.com/albums/...ps0de2add3.jpg

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  3. 7th May 2014, 02:59 PM #63
    Dougal
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    Is that the stock air cleaner location? Washer bottle is a good distance away. Similar in the rrc.
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  4. 7th May 2014, 03:11 PM #64
    kreecha
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    Going on experience with my Disco. It would be tight. Impossible maybe. Tight definitely.
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  5. 7th May 2014, 03:41 PM #65
    Dougal
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    Quote Originally Posted by kreecha View Post
    Going on experience with my Disco. It would be tight. Impossible maybe. Tight definitely.
    I checked with a spare turbo a few days ago. Looked doable. I know the disco layout is a bit different accessories wise.
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  6. 7th May 2014, 04:44 PM #66
    uninformed
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    Quote Originally Posted by Dougal View Post
    Is that the stock air cleaner location? Washer bottle is a good distance away. Similar in the rrc.
    Yes
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  7. 7th May 2014, 05:28 PM #67
    Dougal
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    Quote Originally Posted by PAT303 View Post
    Dougal,the alternator is in front of it,the engine mount underneath it and the starter behind,there's no room around the original turbo for another one,no room on the turbo side at all really. Pat
    The alternator, starter and mount appear to be in the same position as my RRC. The air cleaner and intake pipe is the major difference.
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  8. 8th May 2014, 01:25 PM #68
    Dougal
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    I found the numbers on my pump today.
    0 460 414 098.

    The 1 in 414 suggests 11mm plungers. Landcruiser 4.2L non turbo didn't get 11mm plungers.
    Cummins 4BT got 12mm plungers. A bigger plunger not only can injector more fuel, but can inject fuel faster. I'm still trying to find out what the stock injection values are so I can check how efficient these engines are.
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  9. 8th May 2014, 04:45 PM #69
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    isuzurover
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    I found this for an '02 Jetta which AFAIK runs 10mm plungers:

    IQ fluctuates at warm idle 3.0 to 3.5 mg/stroke within that range.
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  10. 8th May 2014, 04:57 PM #70
    Dougal
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    It's fuel at rated torque and power I'm really interested in. I'm expecting numbers around 50-55cc/1000 shots. Exactly where they land will show how efficient the engine is at those two points. I emailled the pump numbers off to an injection shop who've been helpful before. We'll see.

    A 12mm cummins 4BT pump bench tests at ~180cc/1000 shots max. Scaling the area would give ~150cc/1000 shots.
    Far more than we could ever hope to use. But it's better to have a big plunger and shorter injection for the same fuel.
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