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Thread: upping the boost??

  1. #1
    Regular Member daveypower's Avatar
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    Default upping the boost??

    how much boost is the 2.2 dti engine running standard? 0.6? has anyone upped the boost to say 0.8? how does the car perform?

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    Regular Member Innes's Avatar
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    How do you up the boost without changing the turbo?

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    Regular Member daveypower's Avatar
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    you can up the boost by adjusting the actuator(waste gate control valve) on the 2.2 it seems like an adjustable one, so you just screw it abit, but youd need a boost gauge to be sure you dont adjust to far. im not sure what is a safe level. you can buy an mbc (manual boost controller) also id imagine, im new to the diesel scene but ive had a petrol turbo car in the past.

    There is many ways to up the boost on a turbo car ebc (electronic boost controllers)
    mbc (as i mentioned)
    and adjustable actuators (which id prefer)
    Last edited by daveypower; 29th March 2011 at 21:09.

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    Regular Member Innes's Avatar
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    I thought that just controlled WHEN the boost kicked in more than adding actual boost. I'm sure someone will be along to confirm. I've got a feeling John Robertson adjusted his to REDUCE boost as he kept going into Limp-Home Mode. I posted a thread about a LHM issue I was having HERE.

    I never got around to adjusting the arm as the LHM issue hasn't really occured since I squirted the Actuator rod arm in wd40.

  5. #5
    Regular Member daveypower's Avatar
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    see im sure it controls how much boost before it opens, which would be upping the boost, i wasnt sure if it would go into limp mode, but alot of turbo cars have a factory fuel cut, when the ecu sees the car over boosting it stops it by fuel cut, then you would get a fuel cut defender to stop this fuel cut so you can run more boost but you would neeed supporting mods also., id say the limp mode in this case would be the same, but am not sure as its my first diesel, but there must be away to stop the limp mode so that you can run more boost

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    Regular Member peadar's Avatar
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    Vehicle : ELITE

    Trim : FULL LEATHER

    Engine : 1.9 CDTI 150 BHP

    Year : 2004

    Mileage : 87,000

    Default

    i think i will be keeping an eye on this 1

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    Regular Member daveypower's Avatar
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    Default

    so any1 have any ideas?

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    Ex-Staff Full Member John LE's Avatar
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    Vehicle : Facelift Insignia/Corsa D

    Trim : LE/VXR

    Engine : 2.0 cdti/1.6 Turbo

    Year : 13/07

    Default

    Only way you can do it is with a re-map tbh, shortening the actuator will simply show overboost and throw the car into limp home mode

  9. #9
    Regular Member daveypower's Avatar
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    so theres no way of stopping the limp mode, can anything be wired into the ecu to stop this, i see from your previous posts a remap wouldnt be the best thing for the dti with the fuel pump, i like the idea of the tunning box you have

  10. #10
    Ex-Staff Full Member John LE's Avatar
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    Vehicle : Facelift Insignia/Corsa D

    Trim : LE/VXR

    Engine : 2.0 cdti/1.6 Turbo

    Year : 13/07

    Default

    TBH the box is a great little thing. The standard boost is more than enough on the dti to put a smile on your face.

    The re-maps are fine but if you should be unfortunate enough to have pump failure then you'd need to get the new pump re-mapped too

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