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Thread: 1.9 150 turbo?

  1. #1
    Regular Member bigdave1701's Avatar
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    Default 1.9 150 turbo?

    After numerous problems with my cdti regarding blue smoke, bu**ered injectors rough idle... It's being taken to a diesel specialist for a diagnosis as to what needs doing and what it's going to cost. The current estimate is new injector (at least one if not more) & (depending on the source of the smoke) replacing the stem seals or the turbo.

    My first thought is if the turbo is goosed, then perhaps a bigger turbo could be fun? I won't be doing the work & I know very little about whats involved in replacing a turbo but assume that if the front of the car's already in bits it can't be any more complicated to just put a bigger one on?.. Am I way off the mark with this assumption?

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    Regular Member bigdave1701's Avatar
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    Was this really such a bonkers question that nobody can offer an opinion on swapping the turbo?

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    Regular Member marktaylor's Avatar
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    It will involve a new turbo,different oil lines , maybe bigger injectors

    A lot of work and not cheap
    There is a member on here that did a hybrid turbo but can't remember who it was sorry


    Sent from my iPhone using My thumb

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    Regular Member bigdave1701's Avatar
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    So I couldn't just ask the garage to put a different turbo on?... shame.

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    It would help if you start with model and year.

    The O/E turbo on your car is a 17/49 VNT subject to model year and assuming you are already a 150 CDTi.
    It would be an easy job to fit a bigger turbo such as a 17/56. This would be a direct replacement for the 150 CDTi, no fitting problems, no feed pipe problems and your exising injectors, if 150 CDTi would cope OK.
    The bigger the turbo you fit the higher up the rev band the turbo comes on song. For instance your 17/49 could be spooling well at1400 rpm whereas the 17/56 may be at 1700 rpm. Mid and top end power particularly will be that much greater after the fueling has been attended to.
    Cost indicators. To do this properly you need to pay attention to the details. Your existing FMIC is already inadequate. Only use a tube and fin and NOT a bar and plate if you want best performance.
    The intercooler is a relatively easy job but takes time and best done at same time as replacing the turbo.
    Typicall we would want £75 to swap the turbo only.
    Replacement 17/56 VNT totally rebuilt, ported exhaust manifold £450.
    Injectors. There are lots of injector specialists out there but it is important to choose one with knowledge of the Bosch injectors who will not rip you off as there is plenty scope for that. At the output of the 17/56 your existing injectors will cope but getting each injector inspected and cleaned could cost £60 a unit whereas getting them inspected, cleaned and modified to flow a little bit more would probably be £85 per unit. Obviously there are a lot of injector companies out there that would do the job for less so you could shop around but you need to find somebody reliable because it would be the easiest thing in the world to say four injectors needed attention when there was nothing wrong with any of them.
    I hope all this helps you and if you want me to contribute further I need confirmation of model and year.

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    Quote Originally Posted by marktaylor View Post
    There is a member on here that did a hybrid turbo but can't remember who it was sorry
    It was me

    I am not exactly sure what was done, as my dad's friend who owns a garage done it all. I know the turbo, inter cooler, injectors were done with a few other things too.

    My EGR was blacnked out and remapped out with a power increase too. The CAT was removed from the exhaust and the air filter modified.

    I think a few more things were done too. Will find out. The end result was just over 230 bhp. Good for a 1.9 cdti I think

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    Regular Member nutron's Avatar
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    Vehicle : Vauxhall

    Trim : very

    Engine : Z19DTH

    Year : Nosey

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    Hybriding your turbo would be around £400 and there would be no need to change anything else except the gaskets for the turbo. You will need a remap to actually make use of the turbo though. I managed to find factory reconditioned injectors that looked like new on ebay for just £60 and the guy had six of them. So have a good look around.

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    OK Good power figures but don't get too hooked on that as different rollers give different figures.
    Model and year?
    Without exact knowledge of the turbo you are running now and what has been done to your injectors, plus any other signifigant mods, it is not possible to suggest reliably where you can go from here.
    Your car has been mapped as opposed to a box from what you say.
    Mappable water methanol injection will give you upwards of 12 bhp set up properly.
    More specific info and I can probably tell you more.

  9. #9
    Regular Member nutron's Avatar
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    Vehicle : Vauxhall

    Trim : very

    Engine : Z19DTH

    Year : Nosey

    Default

    It is quite good, the standard Injectors would be near their maximum at 230bhp without a water/methanol kit. With a kit and standard injectors about 260bhp is the limit on a 56mm compressor.

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