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Cold air Intake? - Not a Joke or Noob question

Discussion in 'Gen 2 Prius Accessories & Modifications' started by Daves09prius, Feb 11, 2012.

  1. Justdidit

    Justdidit LVNPZEV

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    - REALLY!? do you have more info on this?
     
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  2. tf4624

    tf4624 Active Member

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    the concept is based on the Cracking of Fuel.. yes you can do it, if anyone tells you "you can't" they either are lying or don't understand it.
     
  3. Daves09prius

    Daves09prius Active Member

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    yes the Torque app can give you the intake temps.

    Heat wrap around the intake tube should help keep the heat at bay. I think the improved air flow compared to the stock air-box will be the biggest gain.
     
  4. tf4624

    tf4624 Active Member

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    you need to make a tube that runs off the stock box and have it go back toward the engine where the heat is being made then make like a hood for it to give it direction where to suck the hot/warm air
     
  5. Justdidit

    Justdidit LVNPZEV

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    The idea I have is to create something like the below...
    Using Daves idea to create a template..
    Attaching directly to the throttle body keeping the MAF in the same 'location' by using the below adapter... having this welded onto the aluminum piping
    Figure its a prob less than $100 total to fab up..I'm will to gamble that if it works beneficially, others can do the same mod... I'm willing to risk it :)
     
  6. Daves09prius

    Daves09prius Active Member

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  7. tf4624

    tf4624 Active Member

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    [​IMG][​IMG][​IMG][​IMG]

    Your box/head mod should look like this
     
  8. Justdidit

    Justdidit LVNPZEV

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    So you've done this?? What kind of increase +/-MPG or +/-HP did you notice?
     
  9. tf4624

    tf4624 Active Member

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    if its hot enough you will see some saving by the tankful.. winter.. its good *but after car actually gets to heating running temps. and you did a full grill block also. Brings air about 20-80 degrees up from the ambient air around it. Cant say its the best mod unless i can get the actual exhaust heat *(400-2000 + degrees) to be recirculated, I wont get much. the new 2013 Prius + will have this and circulate the exhaust heat to the engine for more efficiency


    the mod is just a 1st, many revisions to come.. but i have better things then this.. where this is not technically necessary
     
  10. Justdidit

    Justdidit LVNPZEV

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    What about those in warmer climates....what do you think would be more beneficial? oh and Winter?? whats that? (SoCal) lol..
     
  11. tf4624

    tf4624 Active Member

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    work both.. if your car is warmed up quicker.. the computer then can run less fuel knowing that its gotten to operating temps quicker..

    Also consider indexing your spark plugs ..
     
  12. Justdidit

    Justdidit LVNPZEV

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    I always tried to do this...but didn't know that's what it was called.

    HubGarage.com - Indexing Spark Plugs, a Racer's Trick of the Trade

    So if hotter air is good for a (modest) ~5% mpg increase but has little/no effect on HP gain, wouldn't colder air be more beneficial to help with +MPG and +HP?
     
  13. tf4624

    tf4624 Active Member

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    You can side gap it then.. same results and much easier then drilling a hole[​IMG]

    [​IMG][​IMG][​IMG]
     
  14. Justdidit

    Justdidit LVNPZEV

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    What are the pictures showing?
     
  15. tf4624

    tf4624 Active Member

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  16. tf4624

    tf4624 Active Member

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    Done that years ago. LoL
     
  17. Daves09prius

    Daves09prius Active Member

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    No it's not silly, it's a good point. It's nice that we can all work together to develop something that might help improve the sluggish acceleration, and possibly improve the mpg! :)
     
  18. Daves09prius

    Daves09prius Active Member

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    Here's a pic of my quick and easy "warm-air intake"

    [​IMG]

    It's the rubber wide-sweep 90-Degree elbow from my original "cold air-intake" and a PVC 1.5" 60-Degree street-elbow.

    I'll report if there is any changes from the OEM intake with the resonator removed at the end of the week... Nope, didn't improve fuel economy. My mileage dropped from 47.3 to 40.4, I checked everything, the oil level was good, the tire pressure was good, I even raised the tire pressure to 44 psi in the front and 42 in the rear. My mileage slowly increased to 42.1. I thought it might have been the colder temps, so I blocked the grille - no change. Switched back to the OEM stock tubing without the resonator and mileage improved to 47.2 mpg.
     
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  19. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    Looks hard to drown in fast floods.
     
  20. maestro8

    maestro8 Nouveau Member

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    I thought this was a thread about cold air intakes. But go ahead and change the subject if it helps your argument.


    You've got bits and pieces of ideas, but nothing that fits together cohesively... stage one, two and three mods all in a big soup. Lots of missing pieces: exhaust header is good, but why no mention of high-flow cats or mufflers? And don't even think about fuel injectors until you've got everything else dialed in.

    The "spaghetti" approach to performance tuning only works to drain your wallet... this thread only illustrates your will to throw money at your car, and your willingness to fabricate results to justify your expenditures.


    One can port match intakes & exhausts with a Dremel if he has enough patience. Ignition kits are mostly plug and play, save the installation of the timing sensor. And some projects are as simple as removing a part and dropping it off at the shop for a day (header coating etc.).

    If you've never done it before, I can understand why you'd believe it's not DIY...


    Caps lock does not make your argument more persuasive.


    I'm not in the business of designing Prius mods, and if I were, I wouldn't throw away all the time and effort I put into R&D by giving my designs out for free.

    I've put almost 100 hours of work into mods for another car... I know what kind of effort it takes to make a real solution. Throwing drier hose under your hood might look futuristic, but once you actually research the dynamics of air flowing through a rough pipe, you'll find that you may actually be getting less flow through your intake as a result...

    I do have something to add, it's called a critical eye. Consider me the quality control.