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Warm Air Intake - Icreased Winter MPG - Insight 1

Discussion in 'Gen 3 Prius Accessories and Modifications' started by Hank101, Oct 21, 2012.

  1. Hank101

    Hank101 Member

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    I am a former Insight 1 owner, and a common mod for improving winter MPG was to reroute the air intake to the exhaust manifold and "scavenge" warm air. This would restore most/all of the lost cold-weather-related MPG, if done correctly.

    I am not sure if this would be applicable to our cars, simply sharing an old trick.
     
    #1 Hank101, Oct 21, 2012
    F8L likes this.
  2. F8L

    F8L Protecting Habitat & AG Lands

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    It could help but you would still suffer losses due to increased tire rolling resistance, longer warmup times, denser air, cold lube etc.. It is a useful mod though and in addition to other small mods you can make a significant difference. :)

    Some folks used to use insulation to help the engine retain heat. I think Efusco used to do this.
     
    #2 F8L, Oct 22, 2012
  3. 13Plug

    13Plug Active Member

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    I think all new vehicles should have that heat recovery sort of system, I remember it on the old carbureted vehicles back from like the 70s and 80s, I'm sure it helped a little bit. Up in these parts where it gets below -30 C in the winter it would help warmup times...
     
    #3 13Plug, Oct 22, 2012
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