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Thread: lower ratio rockers than stock any benefits

  1. #1
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    Default lower ratio rockers than stock any benefits

    Lots of threads on the benefits of high ratio rockers (1.90 HRR ) for the V6 in comparison to the stock 1.65 ratio.

    There is not much on if you lower the stock ratio by 10% say to 1.50.

    Any benefits.
    1. Low end torque earlier in the rev range ?
    2. Fuel economy ?

    Disbenefits
    1. Loss of top end power
    2. Engine works harder overtaking

    It might sound crazy, but the only stupid question is the one that is not asked.
    Last edited by vsv6dude; 23-10-2011 at 06:28 PM.

  2. #2
    GRPABT1's Avatar
    GRPABT1 is offline Jakstas' Warden
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    Pointless question is pointless
    Cheap, fast, reliable.....you only get to choose two.

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    padrickz88's Avatar
    padrickz88 is offline Rick =]
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    drewVHSS is offline Donating Member
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    Only valid reason for using lower ratio rockers is to compensate for having too big a cam in your engine than what it can utilise.
    Back in the day when most did not understand cam profiles etc, when many backyarders were chucking in "stage 4" cams only to find their motor ended up a gutless P.O.S and had to resort to setting Zero lash and excessively advancing cam timing to compensate.
    Your theory of using a lower than standard ratio rocker would be only of use if you had a radical cam in an otherwise stock motor.
    HTH

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