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Thread: Brake disks size chart?

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    Regular Member luke4487's Avatar
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    Lightbulb Brake disks size chart?

    Just been poking around then forums and realised its a little confusing finding out what size brakes are fitted to the car. Is it possible anyone could put a chart up here of the sizes vs the engine size/model?

    I have a 2.8 V6 Turbo Sig on a 06 plate and am still stuck on what size to buy my rears have got big ruts in them and after the stinky front pads on the passo della stelvio, was going to upgrade all to drilled and grooved with some front green pads So what size? Danke Schon

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    [Ex]Admin Duncan's Avatar
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    All engines bar the 2.0T and V6 models have 285mm front and 278mm rear.

    2.0T has 302mm front and 292mm rear.

    V6 have 314mm front and 292mm rear expect for very early 3.2s (GSi) that had 302mm front. Seems to be the case also on the 3.0CDTi but I've not yet heard of anyone with a 3.0CDTi that has 302mm as standard.

    VXR has 345mm front and 292mm rear - as does my 2.0T Signum now.

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    Regular Member luke4487's Avatar
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    So I have the bigger size also? As with the diesel V6? How come the Vxr gets bigger fronts and i don't lol? Is it a set of different calipers or could the other bigger calipers fit larger disks??

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    [Ex]Admin Duncan's Avatar
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    Yes, you will have the 314mm fronts. It is possible to get the 314mm calipers to take the 345mm pads - and you'll need the 345mm caliper carriers - but they pads need a bit of careful grinding down etc. It's been done, there's a thread somewhere on it (GSi3.2 did it), but TBH the easiest way is to get hold of the whole kit if you can get it at a decent price.

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    Regular Member luke4487's Avatar
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    danke schon

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    [Ex]Admin Duncan's Avatar
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    Willkommen.

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    Regular Member john_k_sri's Avatar
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    Vehicle : Vectra

    Trim : SRI NAV XP

    Engine : 1.9 CDTI 150

    Year : 2007

    Mileage : 72K

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    The 2.0T and V6 engines also have VENTILATED rear discs as standard

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