Why do most early Vipers have flaps on side of the fan shroud?

Discussion in 'RT/10 and GTS Discussions' started by AAKVIPER, Jun 6, 2019.

  1. AAKVIPER

    AAKVIPER Viper Owner

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    Princeton area ..Central NJ
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    Can we take the flaps off each side for better air flow? What purpose to they have?
     
  2. Big E

    Big E Viper Owner

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    Missouri
    They are for airflow. At low speeds, stop and go, idling, to help direct air thru the radiator with the fan. At speed the fan can't pull enough air vs the air speed so the flaps "open" up. Simple yet functional. Hope this helps.
     
  3. MoparMap

    MoparMap VCA National President

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    Yep, these have been common on radiator design for a while. They let the fan do its job when it needs to and get out of the way when there's enough airflow. Not a good idea to remove as the fan would try to pull hot air from the engine bay backward through the flaps.
     

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