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2006 and up power drop?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by DriverSound, Apr 21, 2009.

  1. Apr 21, 2009 at 12:14 PM
    #1
    DriverSound

    DriverSound [OP] Señor Member

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    I was just wondering if anyone would know why Toyota dropped the power from the 2005 model of 245hp @ 5200 rpm and 282tq @3800 rpm to the current (06 and up) 236hp @5200 and 266tq @ 4000rpm?

    From what I was reading at msn.com, the 05 model was getting better gas mileage compared to the 09's but then again it's probably because the fuel mileage was revised around 2008.
     
  2. Apr 21, 2009 at 12:15 PM
    #2
    Lentsnh

    Lentsnh Well-Known Member

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    hmmmm interesting... I havennt heard anything about this.
     
  3. Apr 21, 2009 at 12:39 PM
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    DriverSound

    DriverSound [OP] Señor Member

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    I wonder what changed. The compression remained the same so I was thinking it could have been something for emissions that changed. I know companies do that all the time, for example GM's LS1 changed their cam and intake for emissions/mpg purposes. A parts breakdown of the 2005 would probably enlighten us all.
     
  4. Apr 21, 2009 at 12:40 PM
    #4
    TacoNut

    TacoNut IgnoringChrisWatchingEdLi veVicariouslyThroughMJP2

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    I remember reading that It was something with the emissions when they tested the 1GR-FE. I don't remember exactly though.
     
  5. Apr 21, 2009 at 12:45 PM
    #5
    MY50cal

    MY50cal I think I'm getting the Fear.

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    Hmmm, weird. Didn't know about that, guess i'm glad I have a few extra squirrels in there. :D

    [​IMG]
     
  6. Apr 21, 2009 at 12:45 PM
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    Rtrn2taco

    Rtrn2taco Nostalgia...

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    could it have to do with the 91 octane fuel requirement in 2005?
     
  7. Apr 21, 2009 at 12:50 PM
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    Lentsnh

    Lentsnh Well-Known Member

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    Good point.
     
  8. Apr 21, 2009 at 1:18 PM
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    LBtaco

    LBtaco Thread killer

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    I don't really notice a difference in the 91 or 87.. maybe a few more miles on the 87
     
  9. Apr 21, 2009 at 1:19 PM
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    DriverSound

    DriverSound [OP] Señor Member

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    I don't think putting 91 octane on our tacos now will gain us the hp and tq of the 05's. I wonder if the intake was changed somehow or the heads.
     
  10. Apr 21, 2009 at 1:21 PM
    #10
    mjp2

    mjp2 Living vicariously though myself Moderator

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    The drivetrains are identical. The rules for testing and determining advertised hp and torque specs changed.

    The new tests more closely reflect what you'll get in the production vehicle with all the emissions equipment in place and functioning.
     
  11. Apr 21, 2009 at 1:21 PM
    #11
    tacoskim

    tacoskim Tuned By Gadget

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    nothing has changed in performance... its just the testing was done different for emissions
     
  12. Apr 21, 2009 at 1:52 PM
    #12
    IndigoBlue2006

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    It changed because the rating and testing methods for horsepower and torque were changed to make them more standardized. The power didn't change, but the measuring method did.
     
  13. Apr 21, 2009 at 2:18 PM
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    techgeekwill

    techgeekwill Captain Funk

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    The SAE testing changed. Pre-2007, they had a lot more leniency to change numbers. Similar reason why EPA ratings went down.
     
  14. Apr 21, 2009 at 2:27 PM
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    IndigoBlue2006

    IndigoBlue2006 Member

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    That's what I was thinking of. The SAE testing changing. Thanks.
     
  15. Apr 21, 2009 at 7:53 PM
    #15
    WilsonTheDog

    WilsonTheDog Kylie's dad

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    Basically every passenger vehicle on earth went down. Japanese manufacturers, on average, went down in HP more than domestics with the new SAE standards. If I remember correctly, the Corvette lost 3hp while, as you can see, the Tacoma lost 9.
     
  16. Apr 21, 2009 at 8:33 PM
    #16
    tacoholic

    tacoholic 09 but I drive a 012 Expedition...

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    Huh...weird, although far fetched, the 05's had motor mount problems...I know they stiffened the mounts but they could have dropped the torque to reduce the possibility? Doubtful but could've, I remember the power drops on everything though, my friend's dad had an 01 MDX at the time and then an 04 and he was telling me how they dumped the power on the 05's or so only to up it again for the 06's and boost it way up for the 07's or 08's(?) - the newest body style. Funny how Expeditions never had any power changes, just up from the 04 which had 280HP and 290ishTQ to the 05's and their 300HP and 365TQ.
    I do remember that time though. Good thing they all came back up (for the most part) afterwards.

    Most likely emissions, sucks though. Torque rules all.
     
  17. Apr 21, 2009 at 9:57 PM
    #17
    WilsonTheDog

    WilsonTheDog Kylie's dad

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  18. Apr 22, 2009 at 6:12 PM
    #18
    tacoholic

    tacoholic 09 but I drive a 012 Expedition...

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    Alright...show me up by a lot...see if I care! :p jp
    Well, nobody lost HP's or TQies at all then, you'll just be neck in neck when you say you rule new Taco's with a stock 05 cause yours came with more power and they have a CAI and beat you. lol epic fail haha!
     
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