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2012 4.0l engine from 4 Runner vs Tacoma

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Deetz, Dec 27, 2011.

  1. Dec 27, 2011 at 7:13 AM
    #1
    Deetz

    Deetz [OP] Member

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    I was doing some poking around and see that the 4 Runner 4.0L engine is rated to make more power than the Tacoma version. Anyone know the differences in the engine?
     
  2. Dec 27, 2011 at 9:26 AM
    #2
    walleyeguy

    walleyeguy Well-Known Member

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    The 4Runner 4.0L engine, as well as the same engine in the FJ Cruiser and Tundra has dual VVT-I. The Tacoma 4.0L has only single VVT-I which is why you'll notice a difference in hp, torque and fuel economy.

    Why Toyota didn't update the Tacoma 4.0L V6 to dual VVT-I is a mystery to me. Very frustrating as well!
     
  3. Dec 27, 2011 at 9:29 AM
    #3
    pataco

    pataco Well-Known Member

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    how much is the difference?
     
  4. Dec 27, 2011 at 9:31 AM
    #4
    alexander323bc

    alexander323bc Well-Known Member

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    So can we drop a 4runner engine into Tacoma, Cause I have 4cylinder and if this possible I might do that my buddy just totaled his 4runner rolled it over but the engine still runs
     
  5. Dec 27, 2011 at 9:34 AM
    #5
    Soundwave

    Soundwave Well-Known Member

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  6. Dec 27, 2011 at 11:00 AM
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    walleyeguy

    walleyeguy Well-Known Member

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    For both vehicles 4x4, 4.0L V6 and automatic transmissions:

    5th Gen. 4Runner: 17 city/ 22 hwy mpg
    Tacoma: 16 city/ 21 hwy mpg

    5th Gen. 4Runner: 270 hp/ 278 lb.-ft torque
    Tacoma: 236 hp/ 266 lb.-ft torque

    So 1mpg more for both city and hwy, 34 hp and 12 lb.-ft more for the updated 4.0 over the Tacoma 4.0.
     
  7. Dec 27, 2011 at 12:03 PM
    #7
    pataco

    pataco Well-Known Member

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    wow,thanks.34 hp is quit a bit.
     
  8. Dec 27, 2011 at 1:52 PM
    #8
    RedTaco2134

    RedTaco2134 Well-Known Member

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  9. Dec 27, 2011 at 1:58 PM
    #9
    dantastic

    dantastic Well-Known Member

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    The hp/tq #'s for the 4Runner are on 91 octane IIRC. My guess is the Tacoma is also tuned for more low-end and mid-range power.
     
  10. Dec 27, 2011 at 2:01 PM
    #10
    whippersnapper02

    whippersnapper02 Well-Known Member

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    As far and I know the block, heads, intake manifold and exhaust manifolds are slightly different. If you want to drop one in you need the complete engine wiring harness and ECU
     
  11. Dec 27, 2011 at 2:06 PM
    #11
    Deetz

    Deetz [OP] Member

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    hmm, i would have thought a cylinder head swap and ecu would be all that is needed for the upgrade


    Thanks for all of the responses everyone, they the answers i was looking for
     
  12. Dec 27, 2011 at 2:08 PM
    #12
    whippersnapper02

    whippersnapper02 Well-Known Member

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    With a 2012 that would be the very last thing I would be thinking about. Buying a TRD blower is probably cheaper than doing the actual swap and you get more power.

    Just saying...
     
  13. Dec 27, 2011 at 2:08 PM
    #13
    BrokenTusk

    BrokenTusk I support a velociraptor free workplace.

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    The tacoma on 91octane rates 246hp, not sure on torque though. #'s from X-ru
     
  14. Dec 27, 2011 at 2:12 PM
    #14
    jpneely

    jpneely Well-Known Member

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    :popcorn: Please post both pics and videos and other shenanigans as well!
     
  15. Dec 27, 2011 at 3:25 PM
    #15
    DriverSound

    DriverSound Señor Member

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    Just enough! Other vehicles: 2015 Mustang GTPP 2014 Prius 2010 4runner SR5 4x4 2009 TRD-OR AC
    Dual VVT-i revs a little higher to get the higher tq and hp numbers.
    270hp @ 5600 RPM, 278tw @ 4400 RPM

    Single VVT-i
    236hp @ 5200 RMP, 266tq @ 4000 RPM

    I haven't seen dynos but my guess is that the single vvt-i have a flatter torque curve at lower rpms that's why Toyota has not updated it.
     
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