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2TR Horsepower increase

Discussion in '2nd Gen. Tacomas (2005-2015)' started by dustball, Nov 29, 2011.

  1. Nov 29, 2011 at 5:04 PM
    #1
    dustball

    dustball [OP] Active Member

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    new Tacoma owner, access cab, 4x4 automatic in mountainous area = I'm stupid.

    But, now that I own it. Is it possible to add 25-30 horsepower keeping it naturally aspirated? intake, headers, exhaust, am I missing anything? 159 HP would be fine for this vehicle if I lived in the flat midwest states but going up hills it has to drop two gears to keep its heavy butt moving.....what a bummer.
     
  2. Nov 29, 2011 at 5:10 PM
    #2
    AWorthyOpponent

    AWorthyOpponent Member Caught Off Road

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    I don't think you could keep the 2TR naturally aspirated and squeeze 25-30 hp hour of intake, headers, and exhaust...I could be wrong though. You may be able to get clost, but it'll sound like a ricer...
     
  3. Nov 29, 2011 at 5:11 PM
    #3
    whippersnapper02

    whippersnapper02 Well-Known Member

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    You could burn almost $2000 and probably still not see 20 more horsepower.
     
  4. Nov 29, 2011 at 5:16 PM
    #4
    KenLyns

    KenLyns Lord of War

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    So drop two gears and "rev red" like the Hondas. The engine will take it. It's a robust inline-4.
     
  5. Nov 29, 2011 at 5:28 PM
    #5
    dustball

    dustball [OP] Active Member

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    Definitely do not want to sound like a ricer. am a older guy, do like the deep throaty american V8's of my era. have since read threads of LC headers & Magna flow exhaust and other owners say its louder but not ricey?
    Are cold air intakes worth adding?

    How about removing the belt driven fan and replacing with electric fans? do not know if stock alternator can spare additional amp load for fans though?
     
  6. Nov 29, 2011 at 5:45 PM
    #6
    2004TacomaSR5

    2004TacomaSR5 Well-Known Member

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    This, except just shovel out the extra 1K and get a URD supercharger, that will boost it up to 211 hp and the stock V6 is 236 hp so not much of a difference
     
  7. Nov 29, 2011 at 5:47 PM
    #7
    2004TacomaSR5

    2004TacomaSR5 Well-Known Member

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    Another bad choice you made was getting the automatic, with my 2.7 5 speed I can climb most any hill in 4th and maintain 60-65
     
  8. Nov 29, 2011 at 6:29 PM
    #8
    MountainEarth

    MountainEarth Well-Known Member

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    Ya I agree that the engine can easily take it. I had a 4-cylinder 4Runner that I regularly dropped into 3rd on the mountain passes. It sounded like it might blow up (!!!) but I never had any problems at all.
     
  9. Nov 29, 2011 at 6:34 PM
    #9
    whippersnapper02

    whippersnapper02 Well-Known Member

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    An exhaust and header combo will probably give you 7-10 hp peak and that is the mods that will give you the most. Unfortunately since it is peak you might lose low end. The sound isn't too ricey since the 2TR has kind of a boxer engine sound to it.

    A full intake won't do much more than replacing the stock filter with an AFE or K&N drop in replacement and a secondary filter delete.

    An electric fan takes the load off of the water pump pulley and adds it to the alternator. No gain there unless you are looking for low speed engine cooling and low speed A/C performance.
     
  10. Nov 29, 2011 at 7:06 PM
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    dustball

    dustball [OP] Active Member

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    Thank you for all the good comments
    I have one last dumb question,

    The URD supercharger mentioned is probably out of my reach financially but if added to the 2TR motor, what is the long term effect be on day to day reliability? Could one still expect to get well over 100,000 miles out of the engine under normal driving conditions?
     
  11. Nov 29, 2011 at 7:19 PM
    #11
    whippersnapper02

    whippersnapper02 Well-Known Member

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    Yeah the engine will last. It just depends how much of a lead foot you are.

    live via :dancingbacon:
     
  12. Nov 30, 2011 at 7:30 AM
    #12
    dustball

    dustball [OP] Active Member

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    what is this "secondary filter delete" about?
     
  13. Nov 30, 2011 at 7:39 AM
    #13
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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  14. Nov 30, 2011 at 8:46 AM
    #14
    AndrewFalk

    AndrewFalk Science!

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    Headers and regearing will provide the most bang for the buck. The 2.7 loves to rev, and you won't hurt a thing. That damn auto trans is holding it back.
     
  15. Nov 30, 2011 at 8:55 AM
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    PSJ

    PSJ Prerunners Work

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    LCEngineering- start here, there are others but these guys do Toyota motors pretty well. With our 4 cyls there is not a lot we can do to improve HP unless you step up to a supercharger or turbocharger as mentioned...:(
     
  16. Nov 30, 2011 at 9:00 AM
    #16
    TacomaBuzz

    TacomaBuzz Manual Transmission Enthusiast

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    5- speed manual paired with the 2trfe is ideal. Automatic is well known to be a dog. I would start by removing secondary air filter and adding an AFE Pro-dry s air filter. you won't gain a lot of Hp, but it does help a little bit.
     
  17. Nov 30, 2011 at 11:15 AM
    #17
    skytower

    skytower Well-Known Member

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    Hitch and wiring, aux back-up light, rear strobe lights, radio and underseat sub.
    The SC will decrease the life of your engine. This depends on how hard you drive it and how often you change your oil. Stick with full synthetic oil. Increases in HP will also decrease the life of other drivetrain components as well.
    Also, some have reported head gasket issues with aftermarket SC's. If you go that route, I would upgrade the head gasket.
     
  18. Dec 1, 2011 at 2:10 PM
    #18
    dustball

    dustball [OP] Active Member

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    checked on prices for superchargers, ouch, reality check, think I can live with revving it on hills.
    Local mechanic warned against LCE header, said it would void warranty, truck only has 2000 miles. TRD header on the other hand wont void warranty. Don't know about TRD, compare to LCE or DT header?
     
  19. Dec 1, 2011 at 2:12 PM
    #19
    whippersnapper02

    whippersnapper02 Well-Known Member

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    There is no TRD header and no a header will not void warranty. Warranty is only voided if the aftermarket part causes a failure of an OEM part. Find another mechanic.
     
  20. Dec 1, 2011 at 2:22 PM
    #20
    dustball

    dustball [OP] Active Member

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    Just spoke with Toyota, they do not offer TRD header, only cat back system. said any header installed may or may not void warranty, just depends on issue. reading between the lines, to me that means it voids the warranty. Will probably proceed with one anyway.
     
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