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Thread: Isuzu turbo diesel tuning guide

  1. #151
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    jack, if i ask you for help on a build, would you mind?
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  3. #152
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    Not at all mate.
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  4. #153
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    yay will be in touch soon
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  5. #154
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    hi
    i had a 1.5 td nova van i fitted a bleed valve
    pluged the reseculating valve
    put 1/4 turn on the fule pressure
    removed the intake box and replaced with a k&n
    stuck the exhaust out just under the drivers door with no boxes in it

    it was a beast

    it ran 1.2 bar

    at east coast xtream i ran a 17 sec 1/4 mile against a nove gte who just beat me at the 1/4 line.

  6. #155
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    was it very loud with no boxes? how much smoke did you get with no boxes??
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  7. #156
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    only smoked until it came on boost then it cleared.
    with the reserc valve taken off it use to dump boost through the exhaust

    it was loud but bearable. i had to machine a plug for the end of the exhaust to reduce the diameater down from 2.5 in to 1in for early mornings to go to work
    Last edited by novrod; 18-01-2008 at 21:26. Reason: not replying to both ?

  8. #157
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    Quote Originally Posted by reno View Post
    plastic back box? are you for real
    sadly iam...... i will post a pic sometime-bloody light with s/s twin exit pipes
    the plastic holds the heat and thus keeps it lighter and goes out faster lollmao

    i used a bleed valve and it was tremedous fun until i melted the HG between the 2 middle bores
    iam interested in the propane idea is it just a jet into the induction hose?
    will this propane cuase even more heat and blow the HG?

  9. #158
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    Quote Originally Posted by novrod View Post
    only smoked until it came on boost then it cleared.
    with the reserc valve taken off it use to dump boost through the exhaust
    sweet

    on another note, is there any way to prevent it from smoking after the boost has been turned up?
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  10. #159
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    i had a message from a guy in germany saying

    turn the fuel pressure up
    then if it smokes on boost its too high
    so back it off till it stops then the mixture should be ok

  11. #160
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    no lol...you know after you have turned the fuel and boost up to the correct level you get black smoke before it comes on boost, is there a way to stop that black smoke?
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  12. #161
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    on my limited knowledge i would say no as the smoke is caused by the mixture being so rich of fuel before the oxygen is forced in buy the turbo.

  13. #162
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    ahhhh right...i never knew exactly why it smoked after the boost/fuel was turned up ive learnt a few things today
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  14. #163
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    Quote Originally Posted by Grim Reaper View Post
    no lol...you know after you have turned the fuel and boost up to the correct level you get black smoke before it comes on boost, is there a way to stop that black smoke?
    If the air/fuel ratio is correct, you won't get any smoke.
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  15. #164
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    ahhh is that where the hot and cold idle screws or something come into play??
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  16. #165
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    also, whats involved in adding a turbo to a non turbo diesel??? is it the same concept as a petrol? obviosly a manifold will have to be made and the correct pizza has to be used but what else??
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  17. #166
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    Quote Originally Posted by Grim Reaper View Post
    also, whats involved in adding a turbo to a non turbo diesel???
    More or less the same as a petrol car, except you can be a bit more vague with the fuelling.

    The fuel pump will obviously need to know somehow how much boost you're on. On Isuzu engines, this is a small hose that goes from the back of the inlet to the top of the fuel pump.

    If you're not after crazy performance, and just a modest increase, slap a turbo on, up the fuelling across the board and be prepared for some serious smoke.

    You might need to lower the CR for a lot of boost.
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  18. #167
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    Quote Originally Posted by Jack View Post
    Get your fuelling sorted first.
    That was welded up ages ago before it was even on the road. Not sure how to do the fueling other than paying a diesel tuning place lots of money to put it right

  19. #168
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    I've tried mine with just the downpipe and no exhaust system before and boy was it loud like a tractor on speed lol went up to 26psi

  20. #169
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    Quote Originally Posted by Jack View Post
    More or less the same as a petrol car, except you can be a bit more vague with the fuelling.

    The fuel pump will obviously need to know somehow how much boost you're on. On Isuzu engines, this is a small hose that goes from the back of the inlet to the top of the fuel pump.

    If you're not after crazy performance, and just a modest increase, slap a turbo on, up the fuelling across the board and be prepared for some serious smoke.

    You might need to lower the CR for a lot of boost.
    i wouldnt mind having very nice performance how would i go about doing it properly then?? custom management??



    also just read my post above, pizza??? thats what happens if you try and have 2 convirsations at the same time lmao
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  21. #170
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    Quote Originally Posted by Grim Reaper View Post
    i wouldnt mind having very nice performance how would i go about doing it properly then?? custom management??
    Yeah, see if you can get the head of a new Civic diesel to fit and use the common rail stuff.
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  22. #171
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    http://www.youtube.com/watch?v=FR0faI8nzSM

    watch that video, then see the second car...thats the noise im after
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  23. #172
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  24. #173
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    thats the engine im gonna be working with
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  25. #174
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    I love you.
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    do you drink?? *serious question*
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