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Thread: Porsche carrera cup USA

  1. #21
    Senior Member boba's Avatar
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  2. #22
    Senior Member boba's Avatar
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  3. #23
    Senior Member boba's Avatar
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  4. #24
    Thanks for posting those pics, great reference.

    Phil
    Early S Junkie # 658

  5. #25
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    Yes, many thanks for the photos. Raj or Phil, do your cars have plywood floorboards on the passenger side??

    Thanks,

    Mark

  6. #26
    The car at Mayo's was listed at $190k and sold in less than an hour.
    Phil
    Early S Junkie # 658

  7. #27
    yep, very well bought
    Phil
    Early S Junkie # 658

  8. #28
    It eliminated critical air flow to motor for cooling, so these could cause motor to overheat.
    Phil
    Early S Junkie # 658

  9. #29
    Senior Member boba's Avatar
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    Not high compression?

    The under tray blocks air flow exit. Traps hot air after flow over the cooling fins.
    Might not be as big an issue at 3000-3500 but at 6K all the time?
    65 356SC Dolphin Gray
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    72 911T GP White
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  10. #30
    Senior Member boba's Avatar
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    It is 11.3:1 so I would consider it HC.

    And yes there is a trade off. Heat vs. aero. Heat equal potential power loss, shorter service life and potential damage. Aero equal potential lower top end speed higher fuel consumption, but it is a spec series and all cars the same. So performance is effected the same for all competitors and service costs reduced by less heat related issues.

    Remember part of the reason for the engine under tray was to meet Swiss noise regulations. That issue was not a consideration for racing.
    65 356SC Dolphin Gray
    66 912 Green
    69 911E Tangerine
    72 911T GP White
    72 911T Aubergine
    72 911T Lilac
    72 911S Black (voodoo)
    86 911 GP White Targa (now sons)
    90 964C4 Black Targa
    94 964C2 Black Coupe
    08 GT3 Speed Yellow

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