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Thread: Putting a turbo on an astra g 1.8

  
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    stevo's Avatar
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    Putting a turbo on an astra g 1.8

    going to buy a garret t28 Ball bearing turbo, dump pipe to suit, custom made mainifold, full 3inch exhurst system, chrome twin dumper, stainless steal piping- with high quality silicone joints, Front mount inter cooler 400x300x74, and water +oil lines.

    are these components the best choices for an astra g 1.8?

    what mods do i need to do?

    can i run on the standard computer or should i dyno it?

    and what power increase should i be looking at?

    thanks in advance

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    Monster's Avatar
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    Would be extremely interested to find out how this gets on as it might be a project for me in a while. Good luck.

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    You can get help from essex turbos on 01376 503 350. Seems a cool idea, why dont you just go for an engine swap?
    In terms of power gains... its about 30 - 40% (i think).
    Hope all goes well, let us know of the progress.
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    re: Putting a turbo on an astra g 1.8

    where'd i source an engine and

    how much would it cost?


    thanks

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    lotus astra's Avatar
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    Scrappies. There are a few Z20LEts around. Dont forget you will need to change the compression of the head. I would also be inclined to get a stand a lone computer, as your standard 1.8 one will not understand the whole turbo thing when its added. Expect replacement engine to cost anywhere from £700 to £2000 with gearbox. You will need to change your gearbox anyway to cope with the increase in torque. If, and that is an 'IF' you can work it, you should see 200bhp or slightly over.

    Good luck, let me know if you need any further advice.

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    what dont u just buy a turbo? saves the hassle!!??

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    If you want to be different and go the turbo route on the 1.8 then courtenay have done a conversion on a 1.8 vectra, sligtly different engine but I am sure they gcould help in your quest.
    Been apart of the inner circle since 2001
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    i can get you a z20let for £1000 all in

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    i got in touch with courtenay b4 about having a turbo conversion done on my 1.8sri and they told me that it cant be done :roll:

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    You can turbo any engine..... but it would need mapping completely from nothing and that would cost $$$$

    Plus you cant just slap on a turbo and be done with it... you need oil feeds/water feeds for the turbo.... You really should lower compression or its not really worth it. you would need sodium filled valves to cope with the heat... bigger injectors bigger fuel lines... the list is endless. :roll:

    If you design the exhaust manifold wrong... shock waves from the engine can damage the turbo, probably need an oil cooler too.

    Can be done but lots and lots of work .... the only other option is to ditch the ecu and run carbs...
    Corsa C LEH 4x4?

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