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  1. #1
    is thinking. grantuk's Avatar
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    Forged pistons anyone...

    http://www.rivayamaha.com/RivaStore/....asp?offset=50

    Also, trim tabs and intake grate released from Riva on the same section.

    Has anyone tried them yet?


  2. #2
    GasResearch-VT.SE's Avatar
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    Stock pistons are good for a fair bit of boost...

    We tested low comp pistons and found a significant lag. The fun factor was gone.

    I suppose blow by limitation would be the best part of swapping out for forged low comps.

  3. #3
    is thinking. grantuk's Avatar
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    What's the stock compression ratio?

  4. #4
    GasResearch-VT.SE's Avatar
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    Approx 11:1 we measured

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