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Thread: CA18DE pistons in a 4AG?

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    Default CA18DE pistons in a 4AG?

    CA18DE pistons in a 4AG, anyone actually done it, they 83mm.
    Would go nice with a 7a, What HG is required? as TRD only does up to 82mm.
    What about pins/rod diametres compatibility
    Last edited by Eircamae86; 2nd April 2009 at 11:32 PM.

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    yrasu sells them with 4age rods attached. as a 4.5age stroker kit.

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    Any links, Im thinking 7a 1900cc??? or 1865 or near enough

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    If you google - 4AGE 83mm bore

    Then you'll come up with a bunch of info and places who do 83mm gaskets. Personally I wouldn't go that far. Going to 83mm over 81.5 gives you about 4% more capacity, not worth it in my opinion given the reliability concerns.

    Hen

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    if your going to do it with a 7a use mazda BP pistons

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    Ok, found the 83mm HG,
    This is more of a discussion than a project plan
    So as I said, lets talk, CA18 or mazda & why?

    If money wasnt an object.

    http://forums.club4ag.com/zerothread?id=47527
    Last edited by Eircamae86; 3rd April 2009 at 08:41 AM.

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    ive drive a RS YASU engine car. GTV on HR has one. it feels like a mild 20v/worked 20v.
    there is a bit more torque low to mid range, but once its passed that its feels the same.
    you get a capacity incease to 1675cc (roughly, cant remember exactly)

    mazda and CA18 pistons work, and only on a 16v. have seen a failure using these pistons in a 20v, and apprently Tsuchiya tried and it killed his blacktop 20v too.
    i have a cometic 83mm gasket on my smallport with 82mm oversized pistons. works a treat, but 83mm is the largest you will be able to bore the cylinders before it will destroy it self.

    7a is probably the best way to go for larger stroke.

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