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VF Tuner 3UR Support - Development Tools

Discussion in 'Performance and Tuning' started by OVTune, Apr 25, 2019.

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  1. Feb 27, 2020 at 6:40 AM
    #2851
    TruckyTruck

    TruckyTruck Dumbest Username

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    Ooo, I didn't know the tire size could be adjusted in our ECU. That's good news!
     
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  2. Feb 27, 2020 at 6:40 AM
    #2852
    Seuqoia11

    Seuqoia11 New Member

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    Looks like you also received the unreasonable customer trophy.
     
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  3. Feb 27, 2020 at 1:48 PM
    #2853
    e30cabrio

    e30cabrio I'm e30cabrio, I'm a modaholic

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    I like pie.
     
  4. Feb 27, 2020 at 2:27 PM
    #2854
    19PlatinumCrew

    19PlatinumCrew New Member

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    Are the 19's able to be OVtuned yet???????
     
  5. Feb 27, 2020 at 2:31 PM
    #2855
    Wynnded

    Wynnded What MPG...

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    There is at least one test tune out there, maybe others. But, your ECU version may (likely) be different. So, yes and no....
     
  6. Feb 27, 2020 at 2:36 PM
    #2856
    19PlatinumCrew

    19PlatinumCrew New Member

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    Yes because Mat is working on it ….No because codes haven't been released from Toyota?
     
  7. Feb 27, 2020 at 2:49 PM
    #2857
    Wynnded

    Wynnded What MPG...

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    ¯\(°_o)/¯ Dunno...
     
  8. Feb 27, 2020 at 3:17 PM
    #2858
    4Runner

    4Runner New Member

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    Where you seeing this? I thought it was gears only?
     
  9. Feb 27, 2020 at 4:57 PM
    #2859
    Wynnded

    Wynnded What MPG...

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    When non-OEM tire sizes and/or non-OEM final drive ratios are fit to our trucks, it can make the shifting really wonky. As I understand it, this can be adjusted in the Tacomas and potentially with the Tundras. I would speculate, but not assume that the speedometer could then be made to give a corrected indication as well. The discussion is over at Tacoma World.
     
  10. Feb 27, 2020 at 5:03 PM
    #2860
    4Runner

    4Runner New Member

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    Got it. My shifting is fine although on the way home after larger tire install it was weird. Anyway, speedo is really what I’m looking for. Seems like that should be an out of the box Toyota option... certainly Toyota could anticipate folks lifting and replacing the crappy tire/wheel stock combo.
     
  11. Feb 27, 2020 at 5:28 PM
    #2861
    ZPMAN

    ZPMAN 2nd place is the 1st looser

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    What size and what gears.
     
  12. Feb 27, 2020 at 5:35 PM
    #2862
    TruckyTruck

    TruckyTruck Dumbest Username

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    This was the first I've heard of it.

     
  13. Feb 27, 2020 at 5:39 PM
    #2863
    4Runner

    4Runner New Member

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    Stock gears and running 295/70/18. Last I heard from Mat there was nothing in his wheelhouse at the moment to compensate for speed.
     
  14. Feb 27, 2020 at 5:45 PM
    #2864
    TruckyTruck

    TruckyTruck Dumbest Username

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    Hmmm, yeah I'm realizing I may have interpreted that wrong now.
     
  15. Feb 27, 2020 at 6:51 PM
    #2865
    NWATundra

    NWATundra New Member

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    Mat, through the Tacoma has found where he can change gear ratio and tire size to correct shifting. He did so on mine with with 5.29’s and 37’s. It did not, for me at least, change the speedometer reading. Only the vehicle speed in the ecu when read by the data logger was changed.
     
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  16. Feb 27, 2020 at 6:53 PM
    #2866
    ZPMAN

    ZPMAN 2nd place is the 1st looser

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    I have the hypertech and installed it for the 35" tires then took it out when went to 4.88s , but had to reinstall it agian for the gears. It was like +4 mph at 60mph, took a bit to dial in because the sensors are on each wheel and the hypertech program would not recognize the 4.88 gears. As I remember I had to put in my tire size in as 32.60 for size to get the speedo corrected.
     
    Toyotoholic likes this.
  17. Feb 27, 2020 at 6:59 PM
    #2867
    NWATundra

    NWATundra New Member

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    For me the gear change didn’t affect Speedo reading at all. I assume the truck uses wheel speed sensors and not a transmission speed sensor for the Speedo.
     
  18. Feb 27, 2020 at 7:20 PM
    #2868
    Wynnded

    Wynnded What MPG...

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    I would guess that it would be necessary to use wheel speed sensors for Vehicle Stability Control data. I know that via Techstream individual wheel speed data is displayed.
     
  19. Feb 27, 2020 at 7:33 PM
    #2869
    ZPMAN

    ZPMAN 2nd place is the 1st looser

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    Yes that is correct, my tires are 34.7 and as I remember I think 4.60s would have put me back to stock.
     
  20. Feb 28, 2020 at 4:51 AM
    #2870
    osidepunker

    osidepunker OsidePunker

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    This is correct. Changing gears does not affect the speedo. The ECU reads wheel revolutions to calculate speed

    Its more complicated than that when talking about a tune. The weird shifting is a result of the ECU reading the wheel speed and calculating load. if you put bigger tires on like 37s and then gears like 4.88, you are essentially stock final drive ratio (32s and 4.30). So the ecu reads an engine load it expects to see, but the wheel revolutions are slower than it expects.

    HOWEVER, with 37s/4.88 on my truck and the first OV base tune, it shifted fine. I was happy with the shifting. The only reason I had @OVTune send me an updated base tune for tires/gears is because he said he has one for my combo which leads me to believe he did something different to make it drive better. We'll see what happens
     
    831Tun likes this.
  21. Feb 28, 2020 at 6:24 AM
    #2871
    azTony

    azTony member since sept, 2017 and over 1,600 messages

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    *** OV Tune Order #4481 *** ECU 0CN21 ***
    2018 Tundra Platinum with Icon Stage 9 w/3.0 and billet UCA, Harrop Elockers, 5.29 on 37’s
    The change for gear and tire size was an improvement for sure (once the tune took, I had to do it twice but I am sure it was something on my end) and got rid of the premature downshifting. This is in the early stage and we will not see any of this until it is gone through more thoroughly. Matt has his hands full and trying to keep everyone happy regardless of his sanity.

    Thanks for all you do @OVTune !!
     
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  22. Feb 28, 2020 at 7:54 AM
    #2872
    AZTundra

    AZTundra No Longer a New Member

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    Just throwing this out there for some feedback as I know many of you guys are supercharged as well. I just got the Magnuson installed 1 week ago, I'm heading back to the install shop today to see if they can ride along and confirm I have something that should be looked into or tell me it's nothing to be concerned about.

    The truck (2017 FFV, Magnuson with HP Tuners) seems to run great and power is smooth and responsive. There is a small amount of possible pinging, although I'm not sure that's what it is. This only seems to happen when I'm in a higher gear and lower RPM and give it some throttle to accelerate, but not enough that it will downshift. I can hear a very faint sound just for a couple seconds until the RPM's pick up then it's gone or at least I no longer hear it. I don't have any prior supercharger experience, so I don't really have anything to compare it to. I'm running 91 octane which is the best we have out here, maybe it's from that?

    If the shop does confirm it's slightly pinging in that scenario would this be something that can be tuned to correct? Are you guys having this happen as well? I know @OVTune is very busy, so I hate to throw another tune onto his pile, just trying to figure out where to go from here. I'll post up the feedback I get from the shop later today. Thanks guys!
     
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  23. Feb 28, 2020 at 10:09 AM
    #2873
    jc153

    jc153 Speed-ish Glamper

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    I have the same thing in my N/A 5.7. It pings when I accelerate hard but not necessarily WOT. It doesn’t last long but still concerns me.
    I emailed Mat about it and included my logs so I’m just waiting for a reply or updated tune that corrects it.
     
    AZTundra[QUOTED] likes this.
  24. Feb 28, 2020 at 10:40 AM
    #2874
    AZTundra

    AZTundra No Longer a New Member

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    Just got back from the test drive with the shop owner, luckily they are only about a mile down the street from me. We were able to duplicate it and he confirmed it is detonation. Seems to be a little more consistent after the supercharger is warmed up. We added a 32oz can of Torco to the tank and I filled up right after with Shell V-Power 91 Octane. I'm going to drive it for the next week and monitor. He thinks it may just be some bad gas in my tank (91 Octane from Chevron). I'm going to follow up with him next week and see how it goes. He said we can always have Magnuson pull some timing from the tune, but that would also rob me of some HP. I'm not really concerned with lost HP, just want my truck to run right as it's my daily driver that sees about 20k miles a year and I need it to last for many years. He called the Magnuson tech while we were on the drive and told him what it's doing and he seemed to think this was a good approach as well. I was told if it's detonating now it will only get worse when the AZ heat comes.
     
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  25. Feb 28, 2020 at 10:40 AM
    #2875
    MrMax

    MrMax Introvertigo Eximious Geargasm

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    Its happened to me a couple of times...once was due to sub par premium fuel in the middle of nowhere towing my toyhauler. The second time was starting up a hill towing a heavy boat and the truck didn't want to downshift...

    The first one was rectified by stopping and dumping some good octane booster in and limping along until I could add another 1/3 tank of brand name premium. Second was in the earlier stages of the OVTune when the gearlocking feature was bleeding over into the regular tow/haul tune and not shifting regularly under load.

    Word of advice now that you are required to run premium only...Always have some good octane booster onboard...esspecially along on trips to unfamiliar places. Avoid the parts store junk and stick with Boostane, Torco or Race Gas Fuel Concentrate. Boostane is 30% higher in cost, but the dose rate is 1/6 of the others.
     
  26. Feb 28, 2020 at 10:42 AM
    #2876
    AZTundra

    AZTundra No Longer a New Member

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    Are there any long term side effects of running the additives? I've heard they can cause an orange discoloration on plugs, O2 sensors, etc.
     
  27. Feb 28, 2020 at 10:44 AM
    #2877
    MrMax

    MrMax Introvertigo Eximious Geargasm

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    Torco always turned my plugs red in the mustangs...I switched to Boostane a few years ago and have not had any issues.
     
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  28. Feb 28, 2020 at 10:45 AM
    #2878
    AZTundra

    AZTundra No Longer a New Member

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    I will definitely be grabbing a couple cans of Torco next week when I stop in again for these exact reasons.
     
  29. Feb 28, 2020 at 10:53 AM
    #2879
    MrMax

    MrMax Introvertigo Eximious Geargasm

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    For tuning I would log and have Matt revise the tune based upon good name brand premium only. I usually only add a little Boostane to the first fill come spring to compensate for last years fuel in the tank. That and If I know I will be pulling very heavy in high heat in the hills. Also If I know I am going to be running one of the car's or bikes hard. Again I prefer Boostane as it only requires 0.13oz/gal to bump 89 back up to 91. Torco if I recall requires 0.8oz/gal to achieve the same result
     
    Last edited: Feb 28, 2020
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  30. Feb 28, 2020 at 11:13 AM
    #2880
    Midway

    Midway New Member

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    Are there any fuel stations around you that carry unleaded 100 octane,? Maybe a drag/race track? Sometimes, I'll mix 100 with 91, cheaper than dumping cans in..
     
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