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4 cylinder 2.7 liter DUAL-VVT-i

Discussion in '4 Cylinder' started by Scott K, Jun 18, 2011.

  1. Dec 18, 2013 at 4:42 AM
    #41
    Lwb053

    Lwb053 Active Member

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    I thought for sure that I read that the 2TR was exhaust-side variable cam, but after you posted I went and dug up more info, and sure enough it is intake-variable cam. I stand corrected.
     
  2. Jan 12, 2014 at 9:57 PM
    #42
    gray223

    gray223 Well-Known Member

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    I'm with ya. It seems like every 3 hills on the high way It down shifts. Plus I've been looking at the new 2015 GMC canyon and its 2.5 is speculated to bring 193 hp and 184 ft lbs of torque. I think Toyota needs to step it up.
     
  3. Jun 6, 2014 at 8:06 AM
    #43
    Scott K

    Scott K [OP] Well-Known Member

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    Just thought I would revive this thread....anyone know if Toyota has any plans to develop a dual vvti 2.7? I really hope they do and I hope we can see a double cab 4x4 with such an engine....
     
  4. Jun 6, 2014 at 4:27 PM
    #44
    Fordless

    Fordless Well-Known Member

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    I kind of doubt it myself. I think they'll let the 2.7L block die with this Tacoma body style. My guess would be a new smaller displacement 4cyl for the next gen. Maybe around a 2.2 or 2.4L. I'm sure it'll have all the modern fixin's DVVT, maybe valvematic and MAYBE it'll be the variable displacement like the new Lexus RCF. The following article is focused on the tundra but Toyota has already confirmed that they will be introducing these engines in a wide range of vehicles.
    http://www.tundraheadquarters.com/blog/atkinson-variable-displacement-v8-tundra/
     
  5. Jul 3, 2014 at 6:49 PM
    #45
    Nightfury

    Nightfury Well-Known Member

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    I wasn't going to comment on an old thread like this, but this particular comment bothered me.

    Dual overhead cams, four valves a cylinder, and superchargers have been around since the late 1920's, by Duesenberg engineers.

    Does that make it REAL OLD tech? Unlikely.

    Source: http://en.wikipedia.org/wiki/Duesenberg#Model_A_.281921.E2.80.931927.29

    I have seen a Duesenberg Model J in person, pre-restoration, and stared in awe at the inline 8 that sported dual overhead cams, and this funny looking squirrel cage on the side of the engine (the supercharger) able to propel this old, no power steering, no seat belt equipped hunk of metal at speeds exceeding 120 mph back in the late 20's. Really cool. Makes a part of me wish I were alive, and one of the test drivers for these vehicles, during that time.

    EDIT: Edited for typo's.
     
    Last edited: Jul 3, 2014
  6. Jul 6, 2014 at 8:29 AM
    #46
    Fordless

    Fordless Well-Known Member

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    Interesting no doubt. Even though I was actually talking about VVT. On the Wikipedia article though it said base prices ranged from $13,000-$19,000. So lets assume you have to get the $19,000 version to get the supercharger. A quick inflation calculation of $19,000 in 1928 would equate to roughly $257,000 in 2014 money. You can accomplish a lot when money is no object. I think my reference to the VVT was being on a vehicle that was obtainable by the average man. B/c even the Non-turbo 2nd gen 300zs were equipped with Intake VVT. And they were considered reasonably priced sports cars at the time. I'm sure Rolls Royces' use ridiculously advanced tech on their engines but I won't be going and buying one. But they don't call them Duesies for no reason. :)
     
  7. Sep 7, 2015 at 10:41 AM
    #47
    Dagosa

    Dagosa Well-Known Member

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    Agree....there is no way Toyota can't easily do this. My understanding is that the newer designed 2.5 Camry engine will be moved over to the Tacoma. It has dual VVt and will have direct injection added. It will give the power of the 2.7 Venza motor but with better economy.
     
  8. Aug 28, 2017 at 10:54 AM
    #48
    DriverSound

    DriverSound Señor Member

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    Thread resurrection right here.

    Recently purchased a 2017 with the 2.7L 4 cylinder and according to the window sticker, the 2.7 is dual vvti but Toyota's website only indicate vvti. Anybody know for sure which it is? Single or dual?

    vvti.jpg
    IMG_3916.jpg
     
  9. Aug 28, 2017 at 7:09 PM
    #49
    Greenbean

    Greenbean B.S. Goodwrench

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    I am thinking the production sticker in the window is correct,

    I'm pretty sure they added the dual VVTi in 2016...
     
  10. Aug 28, 2017 at 8:23 PM
    #50
    Misfit

    Misfit Well-Known Member

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    I read somewhere on here Toyota added Dual VVTi in 2015 models. But yours and mine are definitely dual.
    @Greenbean , yours doesn't have dual?
     
  11. Aug 29, 2017 at 3:12 AM
    #51
    Greenbean

    Greenbean B.S. Goodwrench

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    Hmm, I'll check my stuff later today.
     
  12. Aug 29, 2017 at 3:24 AM
    #52
    7r41lbr34k3r

    7r41lbr34k3r Well-Known Member

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    I still haven't seen a reliable source for this, other than looking at the Hilux specs for the same exact engine (which are all made in Japan). The citation on wikipedia seems to be a broken link. But yeah, dual vvti for 2015+ is the word.
     
  13. Aug 29, 2017 at 11:29 AM
    #53
    DriverSound

    DriverSound Señor Member

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    It appears that dual vs single has the same power and torque output? I just looked at 2012 specs and still 159 HP at 5200 rpm and 180 ft lbs @ 3800 rpm
     
  14. Aug 29, 2017 at 11:31 AM
    #54
    7r41lbr34k3r

    7r41lbr34k3r Well-Known Member

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    hilux 2TR-FE is rated at 164hp/181tq. Toyota hasn't updated their VVT-i to Dual VVT-i on the build page, so it's safe to assume the numbers are old as well.
     
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  15. Aug 29, 2017 at 11:35 AM
    #55
    DriverSound

    DriverSound Señor Member

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    It would be interesting to see torque curves for single and dual.
     
  16. Aug 29, 2017 at 12:11 PM
    #56
    Greenbean

    Greenbean B.S. Goodwrench

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    As noted,

    My window sticker...

    No mention of Dual VVTi.

    IMG_0566.jpg
     
  17. Aug 29, 2017 at 12:24 PM
    #57
    DriverSound

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    Wiki isn't really a reliable source but according to them, change was made sometime in 2015 to dual
     
  18. Aug 29, 2017 at 12:28 PM
    #58
    KenLyns

    KenLyns 8-in. Third Member

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    Dual for 2016+ according to the parts catalog. The illustration hasn't been updated from 2005-2015 and still shows a basic sprocket, but the P/N listing shows a $300 13070-75010 "actuator": https://parts.toyotaofdallas.com/au...rim/2-7l-l4-gas-engine/engine-cat/engine-scat

    Corresponding part 13523-75030 in 2015 single-VVTi engine is $30: https://parts.toyotaofdallas.com/au...rim/2-7l-l4-gas-engine/engine-cat/engine-scat
     
    Last edited: Aug 29, 2017
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  19. Aug 29, 2017 at 12:30 PM
    #59
    7r41lbr34k3r

    7r41lbr34k3r Well-Known Member

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    There is a bit of ambiguity in "changes in 2015". This could mean calendar year, not model year.
     
  20. Aug 29, 2017 at 1:00 PM
    #60
    DriverSound

    DriverSound Señor Member

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    Good research work! You're right, I see the intake and exhaust for dual vvti.

    Dual.jpg

    I confirmed with LCE that their headers will fit 16+ as well.
     
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