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Thread: Bigger throttle body

  
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    jahu's Avatar
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    Bigger throttle body

    Hi again,

    I have a 1.6 twinport and was wondering if I could fit it with a larger throttle body. If so then where should get one from etc... cheers

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    DanSport16v's Avatar
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    I think Courtenay do one, but I am not sure if its for the Astra engine. I think its for the Corsa 1.6 16v engine, though I would expect them to be the same.

    You could always take it to a fabrication place and get them to bore it out and make a larger plate.

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    If you've got drive by wire throttle, the stripping it down to machine it out is nigh on impossible due to the construction.

    Even if you could get one it won't achieve that much (if anything) since noting else in the engine has changed to benefit from the better breathing. But if you were to slap some cams in..................

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    The standard throttle body isn't restrictive on a standard engine. In isolation, a larger throttle body will increase fuel consumption and noise and may reduce mid-range torque.
    Maintains:- Vectra Design 1.9CDTi
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