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Raising Compression Ratio

Discussion in 'A3/S3 Forum (8L Chassis)' started by IrishDave, Aug 25, 2011.

  1. IrishDave
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    IrishDave Active Member

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    [Aug 25, 2011]
    Thinking about raising the compression from the standard 9:1 to 9.5:1. I am not looking for massive power from this car, I just want something that is economical and comfortable to drive. My understanding of raising the compression will:

    1. Increase fuel economy.
    2. Better performance on and off boost
    3. Increase throttle response.
    4. Cost less than going Hybrid.

    Only downfall might be higher combustion temps, but with a good intercooler and tuning this should not be a problem.
    Has anyone else considered doing or have done this before. What are your thoughts.
    Dave.
    #1
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  3. superkarl
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    superkarl MAN OF STEEL

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    [Aug 25, 2011]
    i would have thought, i dont know, just thinking, that your power will still be limited by the standard ko4, therefore only real benefit would prob be a bit more torque? something standard rods dont like.
    seems to me a lot of hassle, for not much gain.
    #2

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