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Thread: 1994 Defender Isuzu 4JJ1 or 4BD1T???

  1. 24th December 2010, 11:32 AM #1
    defender1619 Guest

    1994 Defender Isuzu 4JJ1 or 4BD1T???

    Hola from South America!!!!
    First pardon my english.
    I have a 1994 Defender 110 V8 (3.5 dual carbs) 5 speed I want to put a diesel engine and I was hoping you guys can give me the good and bad from these two engines. I have no issues with emissions or insurance laws here. I live in Bogota Colombia altitude around 2800 meters and I tow a 2500lbs trailer and we are a family of six, I need TORQUE power to be able to pass trucks going up hill. please feel free to advice.
    muchas gracias amigos!!!
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  2. 24th December 2010, 12:00 PM #2
    c.h.i.e.f's Avatar
    c.h.i.e.f
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    Everyone is going to say 4bd1T over there a cummins 4bT might be easier to find though!
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  3. 24th December 2010, 12:50 PM #3
    Bearman's Avatar
    Bearman
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    Welcome and Merry Christmas to you. Definitely a 4BD1T and you will need a good LT95 4 speed box if you are towing in hilly country. It will mince the 5 speed box currently in it.
    Cheers......Brian
    1985 110 V8 County
    1998 110 Perentie GS Cargo 6X6 ARN 202516 (Brutus)
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  4. 24th December 2010, 01:32 PM #4
    defender1619 Guest
    what is the advantage of the 4BD1T ? does any one have some type of chart where I can see the power and torque ratings of the two engines?
    gracias
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  5. 24th December 2010, 03:24 PM #5
    c.h.i.e.f's Avatar
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    Once again everyone is probably going to say 4bd1T once modified to suit your power needs ! Plus it is a very strong engine!
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  6. 24th December 2010, 08:41 PM #6
    garryseries3
    garryseries3 is offline Master
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    Quote Originally Posted by Bearman View Post
    Welcome and Merry Christmas to you. Definitely a 4BD1T and you will need a good LT95 4 speed box if you are towing in hilly country. It will mince the 5 speed box currently in it.
    Perhaps you should consider the Grubb isuzu gearbox conversion, I am sure he would ship an adaptor to the LT 230 tranfer and gearchange mechanism conversion over to you and you source a box there, a much stronger box. Look up his thread the conbination of a isuzu 4BD1 and isuzu box will pretty well undestructable even with what you need to carry on you roads there.
    Kindest regards
    Garry
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  7. 24th December 2010, 10:46 PM #7
    d@rk51d3 Guest
    the 4jj1 with the vnt turbo is a very nice motor (current D-Max?). Built very well from what I've read too.

    Is fuel quality an issue with these?
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  8. 24th December 2010, 10:54 PM #8
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    dobbo
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    Quote Originally Posted by c.h.i.e.f View Post
    Once again everyone is probably going to say 4bd1T once modified to suit your power needs ! Plus it is a very strong engine!
    Tell me more Nostradamus
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  9. 24th December 2010, 11:35 PM #9
    defender1619 Guest
    Quote Originally Posted by dobbo View Post
    Tell me more Nostradamus


    C.H.I.E.F = GREAT KNOWLEDGE BUT FEW WORDS!!

    DOBBO
    one reason I like the 4jji is that they use it a lot here in the Dmax trucks easy to get parts and a motorand I like that it's turbo due to the elevation where I live, with the turbo i don't lose power. but evryone seems to perfer the 4bd1t wich I dont know much about.

    does anyone know the power and torque rating od the 4JJI motor?
    does anyine know the power and torque rating of the 4DB1T motor?
    where can I find information on Grubb isuzu gearbox conversion? does he have a web site?

    Muchas Gracias Amigos
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  10. 25th December 2010, 08:34 AM #10
    c.h.i.e.f's Avatar
    c.h.i.e.f
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    Well I didnt want to get right into it! But what I ment was how you set it up.. Turbo wise, fueling wise gearing wise etc etc I have a td5 turbo intercooled setup great low down but 120klmh is its max unless a huge hill.
    There is much debate on what turbos to run on these engines. There is a guy over there in america that has gone to the extremes of supercharge/turbocharging , bigger injectors, uprated fuel pump etc etc
    Cummon dobbo you should hav read that this thread was about 4bd1"T"s not 4bd1's
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