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I'm driving the 2016 Prius next week. What do you want to know?

Discussion in 'Gen 4 Prius Main Forum' started by Danny, Nov 2, 2015.

  1. Lee Jay

    Lee Jay Senior Member

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    A slow leak isn't a situation that will leave you stranded unless you ignore it for weeks.
     
  2. bwilson4web

    bwilson4web BMW i3 and Model 3

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    It begs the question . . . the tire pressure light?

    Bob Wilson
     
  3. energyandair

    energyandair Active Member

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    What's the data source on which you base this statement?
    It certainly does not match my experience.
     
  4. mozdzen

    mozdzen Active Member

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    All the more reason that other people experience more flats than you - everyone else has to get lots of flats to keep the average up (-;



    Merged.



    Also depends upon how many (how often) gravel roads you drive on (and how fast)
     
    #204 mozdzen, Nov 15, 2015
    Last edited by a moderator: Nov 15, 2015
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  5. frodoz737

    frodoz737 Top Wrench

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    Good point...but...when I put my snow wheel assemblies on without TPMS and it took three starts and about two hours before the light came on...and last time it came on for a low tire pressure I was down to 24 lbs. Spares as it relates to this sub-topic is for flats...not slow leaks. Personally I treasure my time and safety more than I do trying to scratch 0.25 mpg buy removing 30lbs from the car. Anyways the manufactures delete the spare to save cost and space, not gas.

    ...and a flat never happen at an in opportune time.
     
    #205 frodoz737, Nov 15, 2015
    Last edited: Nov 15, 2015
  6. UsedToLoveCars

    UsedToLoveCars Active Member

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    With modern cars, 0-60 times are a useless indicator of acceleration. Basically the onboard computer is gaming the test with launch control trickery that never gets used in the real world. - especially with rigged press test cars.

    A much better test is a rolling start 5-60 mph run.
     
  7. Lee Jay

    Lee Jay Senior Member

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    This is only true of cars that have enough power to spin the wheels on dry pavement. I don't believe Prius is in that category.
     
  8. UsedToLoveCars

    UsedToLoveCars Active Member

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    Car companies are not above rigging press tester cars for better tests. Car and Driver has caught a few companies doing this. Nobody should take any impressions of driving a press car seriously - wait until legitimate testing organizations that buy their testers from a dealer run their tests.


    Typical press car mods:

    -higher quality dampers than production
    -added sound deadening
    -completely removed emissions equipment (legal since these cars carry manufacturers plates and don't have to conform to anything)
    -tweaked ECU mappings
    -hand assembled interiors for better fit and finish
    -higher quality leather than production
    -higher quality speakers
    -better tires than production
     
  9. Mendel Leisk

    Mendel Leisk Senior Member

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    I think the typical Prius owner couldn't care less about 0-60 times, just that the car has reasonable acceleration.
     
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  10. orenji

    orenji Senior Member

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    Legitimate, the one you are referring to slamed the Prius C. It is one of the best cars I have owned. Drive it yourself and make your own impressions of the car.
     
  11. civicdriver06

    civicdriver06 Active Member

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    Well it should at least not be slower than the current model !
     
  12. bisco

    bisco cookie crumbler

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    agreed, i doubt it is.
     
  13. cycledrum

    cycledrum PSOCSOASP

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    I want to know if this rumored 121 total system HP is true or not.
     
  14. bisco

    bisco cookie crumbler

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    doesn't everybody, november 18, the suspenders are killing us.
     
  15. Lee Jay

    Lee Jay Senior Member

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    Horsepower ratings are pretty meaningless.

    2010 Prius 134 HP.
    1988 Mazda MX-6 GT (I own one) - 145 HP.

    The Prius will do 0-60 in around 10 seconds at sea level with a CVT.
    The Mazda will do it in 7 seconds flat at high altitude with a manual transmission (I've timed it myself, at 6,000 feet, on flat ground).
     
  16. bisco

    bisco cookie crumbler

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    agreed, we need acceleration tests, not engine/battery power.
     
  17. godzillaismad

    godzillaismad Member

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    I would also add power to weight ratio is an important indicator too. With that said, the torque of electric motors might make up for the lost hp between gen3 vs. gen4. They would be similar in performance numbers... At least that's what we have been made to believe thus far...

    SM-G900I ?
     
  18. kgall

    kgall Active Member

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    I'd love to know your review of:
    1. Rear visibility and the "blind spots" toward the rear on each side, particularly the passenger side.
    2. How well the technology, if any, works to improve rear and side visibility.
    Thanks!
     
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  19. Tideland Prius

    Tideland Prius Moderator of the North
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    I agree.

    The Gen 3 gained 24hp over the Gen 2 (134hp vs. 110hp) on paper according to Toyota. However, on the dyno, it's about a 13hp increase (~96hp to ~109hp based on average readings). The whp is about 13% lower on the Gen 2 compared to the brochure (96 vs 110hp) but a more significant 19% lower on the Gen 3. If the Gen 4 "lost" hp (again, from what? The engine? the battery?) to 121, someone needs to put it on the dyno and see what the whp is. A lost of 13% is 105hp (So only 4hp down from the Gen 3 but if it had the same lost as the Gen 3, it's down to 98hp). Most of us won't notice 4hp. However, Toyota's been touting improving efficiency on the electrical side (inverter, PSD, MG) as well as the engine (thermally better) and has a new PSD that could help with torque multiplication which may offset the hp loss.
     
  20. Lee Jay

    Lee Jay Senior Member

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    Improved efficiencies won't help with performance as the power is measured after the components that have improved.

    Improved control range and method has the potential to make a huge impact on performance, however. I'll repeat some math I did.

    121HP = 90.2kW.

    If the car, driver and fuel weighs 1,500kg, 60mph (26.8m/s) would be 0.5*1500*26.8^2 = 538,680J.

    538,680J / 90,200W = 6 seconds.

    That's ignoring drag (which is not a big deal on a run to 60) but it shows you how much range there is between the expected time (10 seconds) and the theoretical ideal performance time (6 seconds). Plenty of room for improvement if control range is improved. The ideal is never attainable as it means infinite torque at the low end.
     
    #220 Lee Jay, Nov 15, 2015
    Last edited: Nov 16, 2015
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