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  1. #1
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    Naturally Aspirated beasts - Heads/Cam Gen V Viper vs. Lamborghini Aventador SV vs. Porsche 991.1 GT3 RS vs. Huracan

    The high performance naturally aspirated aspirated motor quickly became a relic in the turbo era. Fortunately, there are still some examples out there and some of the best are in this video. It is interesting that the high performance NA motor remains almost exclusively with high end high performance sports cars.

    Click here to enlarge

    The Viper you know well and it is the brute of the bunch. There is no replacement for displacement and its 8.4 liter V10 has a heads/cam upgrade and tune.

    The Aventador SV is not exactly a slouch with its 6.5 liter V12 revving to 8500 rpm. It has a compression ratio of 11.8:1 and makes 750 horsepower. Unfortunately, it is in a much heavier chassis as the Viper makes easy work of it.

    The Huracan you know with its 5.2 liter V10 and boosted examples rule the aftermarket but in NA form it can't keep up with the SV or Viper.

    At the end of the video a Porsche 991.1 GT3 RS tries its luck but the 4.0 liter naturally aspirated flat-6 is easily outclassed.

    The Viper is simply the NA king.

    Three sets of brand new 991.2 3.0 headers for sale: Kline, Fabspeed, and Vektor Ceramic Coated

    IPD plenum for Porsche 991.2 3.0 for sale: $650

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    Impressive, how much power does one make and how does it fair against a heads/cam na 7.0L Z06?

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    One word, America!

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  5. #5
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    Click here to enlarge Originally Posted by Blown6 Click here to enlarge
    Impressive, how much power does one make and how does it fair against a heads/cam na 7.0L Z06?
    https://www.boostaddict.com/content....on-Gen-V-Viper
    Three sets of brand new 991.2 3.0 headers for sale: Kline, Fabspeed, and Vektor Ceramic Coated

    IPD plenum for Porsche 991.2 3.0 for sale: $650

  6. #6
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    Z06 needs extreme NA mods to reach lightly modded NA Viper....

    Are the Gen4s just as fast?

  7. #7
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    Click here to enlarge Originally Posted by Blown6 Click here to enlarge
    Are the Gen4s just as fast?
    Nope.
    Three sets of brand new 991.2 3.0 headers for sale: Kline, Fabspeed, and Vektor Ceramic Coated

    IPD plenum for Porsche 991.2 3.0 for sale: $650

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