Prius v CVT programming??

Discussion in 'Prius v Accessories and Modifications' started by Eric "v", Feb 10, 2015.

  1. Eric "v"

    Eric "v" Member

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    It appears that even in the PWR mode the transmission is programmed to not give optimum acceleration with wide open throttle (WOT).

    I wonder if, just for PWR mode, the transmission could be re-programmed to give more positive acceleration without the "useless" hi revving I see at WOT.
     
  2. vskid3

    vskid3 Active Member

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    What do you mean by "useless high revving"? High RPMs is generally where the most power is made. No different than any other automatic transmission downshifting a gear or two when you floor it.
     
  3. bisco

    bisco cookie crumbler

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    you can reflash the software or get an aftermarket chip. why suffer the low prius power blues?
     
    #3 bisco, Feb 10, 2015
    Last edited: Feb 14, 2015
  4. rdgrimes

    rdgrimes Senior Member

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    As you have been informed already: Power mode does nothing but re-map the accelerator pedal response. Full throttle is full throttle in any of the three modes.
     
  5. Air_Boss

    Air_Boss Senior Member

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    Don't bother a troll with inconvenient facts...
     
  6. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    Ignore the torque curve for a moment, and look at the Horsepower curve. There is no way to get more horsepower with 'useless revs'. You may just be disapointed by how flat the curve is.

    Perhaps you are actually wanting more torque?

    [​IMG]
     
  7. Air_Boss

    Air_Boss Senior Member

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    The PWR mode launches with that nice fat zero RPM electric motor torque.
     
  8. Classic Car Guy

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    Hey there buddy. Long time. Was gonna ask you something. On my 2007 I'm getting 45 mpg which actually very happy with it low mileage and well kept. Just curious why my wife's 2018 is getting over 54+ mpg?
    Thanks Joe
     
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  9. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    Different engine, (2007 1.5l, 2018 1.8l) newer software, improved Inverter, improved transaxle, changed battery chemistry (2007 NiMH, 2018 LiIon) improved aerodynamics, etc.
     
  10. bisco

    bisco cookie crumbler

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    is that over a long period with the same usage? gen4 is definitely better due to refinements, and gen2 is probably a bit weaker than it was when new.
     
  11. Classic Car Guy

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    On the 2007 which I don't know if you recall I got it Dec. 2018 98k miles. I drove 18k miles on it which is presently 116k now. respectively its 45 mpg even with my heavy feet on my everyday driving that is 60 mile on both ways to work. not complaining with the consumption and actually its great. But if you have any magic to get more mileage great or id just leave it alone before I fumble-fest the car. Lol...
     
  12. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    Be sure you have Low Rolling Resistance tires.
    Winter is coming, read up on Engine Block Heaters and Grill Blocking. Both are more effective in cold weather.

    The most effective MPG increases will come from reprogramming the Driver.
    Not hitting the brakes is better than gradual braking which is better than abrupt stops.
    Clumping errands is better than separate trips.
    Pushing air kills MPG, how slow can you afford to go? (don't go lower than 25 MPH)

    And always when it begins to feel like work "just drive it"
     
  13. bisco

    bisco cookie crumbler

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    all you can do is maintain it properly. oil changes and proper level, air and cabin filters clean, healthy 12v battery, pump tire to 42f/40r.
    the biggest thing is probably the hybrid battery. you could try reconditioning, but i don't know if it would help or not.
    tbh, 45 is probably average if you look on fuelly
     
  14. bisco

    bisco cookie crumbler

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    congrats on the 18 btw, nice car! (y) also, some of the gen 4's went to lithium batteries, which may help as well.
     
  15. Classic Car Guy

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    The first time I bought the 2007 I was a bit skeptical about the horrible money pit stories I heard. Being said, I don't know anything about hybrids besides I always have an old Toyota pickup or corolla as a day to day driver so I wont have to drive my Austin on work days. I got this 2007 Prius just an accident for I was trying to rush in on a Yaris that they flashed out in the dealer for 6k. when I got there they said the Yaris was sold and instead they have this for my budget. I told myself I don't know anything about hybrid and Id be kicking myself in the N...s if anything goes wrong. Hey been here before, buying a used everyday car as long as its a Toyota, I'm always putting up to spend another 2k just to replace the possible failing parts so I can get close to trouble free. After joining your group here, with the pros and cons I have been hearing, good car or money pit, I took my chance and I started changing all the cooling pumps, mechanical and electrical, thermostat, flush the coolant, idler bearing and pulley, belt, radiator cap, all the cooling clamps, I felt a very minimal surging motion while cruising so I serviced the throttle body and I replace the dog bone mount, new tires all the filters, Presto.. its been 18k and the only thing I'm doing is rotate the tires and change oil and filter. I feel more confident now. Hopefully I get another 20k or maybe more that will be great! No complaints with the car .. so far its beautiful. Last thing I did, I added my Rockford Fosgate and sub. It sounds incredible. The vibration of the hatchback rocks!
    2007 Toyota Prius Red 5.jpg Joe_Rockford_Subwoofer_Setup.JPG
     
    #15 Classic Car Guy, Oct 13, 2019
    Last edited: Oct 13, 2019
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  16. Classic Car Guy

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    if anything goes with the battery, I might just try to fix the cell unless I figured that it will suit the extra expense with the lithium vs my travelling chores. Anyways I still have the old Toyota pickup just sitting in my driveway.
     
  17. fuzzy1

    fuzzy1 Senior Member

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    That is close to what is expected between the different vintages, without knowing the particular trim version of the 2018 (different MPGs):
    upload_2019-10-13_19-27-49.png
     
  18. Classic Car Guy

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    probably 2018 Prius 2. semi-bells and whistle with the regular steel rims w/ hubcap.
     
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