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Thread: Turbo's on 4.0ltr v8

  1. #11
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    Quote Originally Posted by Pedro_The_Swift View Post
    What are you trying to say Slunnie???


    Quote Originally Posted by Matman View Post
    So a 4.6 would be better?Cant think of any other.Might as well but a windsor 5.0ltr in it then.
    No, the other way. The 4.6 has the best of the bores that are in that engine, but they run the same block as the 4.0, just with the same bores that are at the thicker end of things. The extra 600cc is from a longer throw crank into the 4.0 block.

    I'd be thinking more along the lines of the last 3.5's which have a smaller bore and hopefully thicker bore walls, and I think (but needs to be confirmed) they had a better setup bottom end also for durability.
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~

  2. #12
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    Quote Originally Posted by Matman View Post
    .Dont want to go supercharger they use more fuel.
    What the ****?, you give you that sort of misguidance?

  3. #13
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    Quote Originally Posted by rovercare View Post
    What the ****?, you give you that sort of misguidance?

    I was thinking the same???

    if its has more HP, it will use more Fuel.... HP is not free.. you need to feed it...

    Turbo's and supercharger should not use more if you dont drive it harder than a granny..... not a Top gear Granny either... a Coles Carpark to Cards granny

  4. #14
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    Quote Originally Posted by sclarke View Post
    I was thinking the same???

    if its has more HP, it will use more Fuel.... HP is not free.. you need to feed it...

    Turbo's and supercharger should not use more if you dont drive it harder than a granny..... not a Top gear Granny either... a Coles Carpark to Cards granny
    Turbo fans, have this "theory", that a supercharger takes HP to make HP and a turbo is like free HP, because its not driven off the crank

    Try adding a blockage to your exhaust and see how it goes

  5. #15
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    Long shot's toyota (with a decent engine )










  6. #16
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    Quote Originally Posted by isuzurover View Post
    Long shot's toyota (with a decent engine )









    Thanks for the pics.So you need to put more fuel in when you put more air in for a turbo charger?I thought a turbo works more like cold air induction,you dont need to put in more fuel for that?Or would it make the engine run to lean without the extra fuel?

  7. #17
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    Quote Originally Posted by Matman View Post
    Thanks for the pics.So you need to put more fuel in when you put more air in for a turbo charger?I thought a turbo works more like cold air induction,you dont need to put in more fuel for that?Or would it make the engine run to lean without the extra fuel?
    Ahhh, you really need to do some reading

    You'll need different engine management, with timing control, likely uprated injectors, to compensate for boost pressure

    Not cold air induction, its forced induction

  8. #18
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    Quote Originally Posted by rovercare View Post
    Ahhh, you really need to do some reading

    You'll need different engine management, with timing control, likely uprated injectors, to compensate for boost pressure

    Not cold air induction, its forced induction
    Thats cool you learn something everyday.Dad says there is no substitution for cubes so well see lol.

  9. #19
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    Yeah, if anything forced induction heat up the incoming air!
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~

  10. #20
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    Quote Originally Posted by Matman View Post
    Thats cool you learn something everyday.Dad says there is no substitution for cubes so well see lol.
    Your dad has some sage words there.

    Yes we can put blowers or turbo's on motors and yes they cost an arm and a leg, we can also put a bigger engine in to do the same job with out stressing the hell out of the motor (which also costs an arm and a leg).

    Now no matter which way you go you are going to stress the rest of the drive train - you hear about landys having weak axles. That is the problem if you upgrade the engine you are closer to it's design limits so more bits can break easier.

    So then we fit stronger axles, bugger the gear box cant take it now so we fit a stronger gear box etc etc

    Modifying 4wds is an addiction, usually it comes from when we do break something, we replace it with a stronger part and it goes on from there. If I could afford it I would put a 4.6 in with a centrifical blower to replace my 3.9i, in my view the centrifical blower is the best of both worlds. Trouble is, for the money that would cost I could put in a gen III 6lt which has more power and cheaper to get parts for????

    Probably a good thing I cant afford it yet.
    Last edited by blitz; 11th June 2009 at 08:49 AM. Reason: dyslexic fingers - spelling

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