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DT long tube vs DT shortie headers

Discussion in '2nd Gen. Tacomas (2005-2015)' started by bermise, Jul 23, 2009.

  1. Jul 23, 2009 at 1:09 PM
    #1
    bermise

    bermise [OP] Well-Known Member

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    Besides the long tubes being bolt on and not requiring any welding, what are the differences between the Doug Thorley long tube headers vs Doug Thorley shorty headers? I do not street race and looking for more low rpm power and better acceleration, say from 0-40mph. Any help would be appreciated. Thanks
     
  2. Jul 23, 2009 at 1:23 PM
    #2
    johnecon2001

    johnecon2001 Well-Known Member

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    Well other than the obvious one-leaves-the-cat-in thing, the shorties are 50 state legal where the long tubes are just for off road (because they remove a part of the smog system).

    Also, here is the dyno chart for the long tubes.
    [​IMG]
     
  3. Jul 23, 2009 at 4:21 PM
    #3
    bermise

    bermise [OP] Well-Known Member

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    great chart, good info. I talked to a rep at Doug Thorley today and I think I will order the shorties tommorow. He said they would provide better acceleration and low to mid rpm power than the long tubes. Can't wait.
     
  4. Jul 23, 2009 at 4:32 PM
    #4
    roxspin72

    roxspin72 Enjoying my addiction

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    Good on you. You will love your truck even more afters installing them Headers...
     
  5. Jul 23, 2009 at 4:45 PM
    #5
    bermise

    bermise [OP] Well-Known Member

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    Ok now gadget talked me into buying the long tubes. Last mind change for me.
     
  6. Jul 23, 2009 at 5:17 PM
    #6
    roxspin72

    roxspin72 Enjoying my addiction

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    LOL... You will love those even more, and way easier install.

    Enjoy...
     
  7. Jul 23, 2009 at 6:58 PM
    #7
    bermise

    bermise [OP] Well-Known Member

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    These long tubes will pass emissions in Texas right? I know not in California. Where are you roxspin72
     
  8. Jul 23, 2009 at 7:04 PM
    #8
    Front sight

    Front sight Well-Known Member

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    I know they are diff moters, but in my 99 stang I 1st bought shorties. They gave a little gain. A few yrs later I bought long tubes. I felt more power with the lt's and my track times reflected it aswell.

    Dominik
     
  9. Jul 23, 2009 at 7:06 PM
    #9
    bermise

    bermise [OP] Well-Known Member

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    Good to know, thanks for the input. I feel better already about my purchase.
     
  10. Jul 23, 2009 at 7:10 PM
    #10
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    Interesting torque spike at 3500 and 4200 rpm with those headers......I wonder if they are tuned...
     
  11. Jul 23, 2009 at 7:16 PM
    #11
    bermise

    bermise [OP] Well-Known Member

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    tuned? Don't scare me now Chris
     
  12. Jul 23, 2009 at 7:46 PM
    #12
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    Not trying to scare ya, but the power gain they advertise happens in a specific RPM range. From 3500 to 4200 rpm. Everywhere else, there is not much gain over stock. Being as there is a spike in the power, it leads me to belive they are not a tuned header, and their optimal efficiency is only at that specific rpm. A propperly tuned header should give a solid gain over the stock one at all rpm with no spike.
     
  13. Jul 23, 2009 at 7:52 PM
    #13
    johnecon2001

    johnecon2001 Well-Known Member

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    There was a guy on Toyota Nation that passed the sniffer with the long tubes. I can't find the thread at the moment.
     
  14. Jul 23, 2009 at 8:12 PM
    #14
    bermise

    bermise [OP] Well-Known Member

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    How accurate is the dyno chart above for our tacomas. It is for a FJ cruiser and the max hp is 193. Isn't the tacoma more hp than that stock?
     
  15. Jul 23, 2009 at 8:16 PM
    #15
    bermise

    bermise [OP] Well-Known Member

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  16. Jul 23, 2009 at 8:19 PM
    #16
    bermise

    bermise [OP] Well-Known Member

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    And a clip of the above truck:

    <object width="425" height="349"><param name="movie" value="http://www.youtube.com/v/olg_Er1nBS...&feature=player_embedded&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowScriptAccess" value="always"></param><embed src="http://www.youtube.com/v/olg_Er1nBS...&color2=0xcfcfcf&feature=player_embedded&fs=1" type="application/x-shockwave-flash" allowfullscreen="true" allowScriptAccess="always" width="425" height="349"></embed></object>
     
  17. Jul 23, 2009 at 8:25 PM
    #17
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    It all depends on the dyno, and the ambient conditions. Its normal for one dyno to have a reading 30 or so hp from another one. I use the same dyno and conditions when I try something, so I know if there really IS an improvement or not.
     
  18. Jul 24, 2009 at 10:00 AM
    #18
    bermise

    bermise [OP] Well-Known Member

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    I hope my taco is never at 193hp at its peak, that would suck. The chart from the link above for our acutal truck shows better gain throughout the rpm range with the long tube headers. Here is what a guy from autoaccesories wrote me in a email:
    Hello,

    Thank you for your email. Long tube headers are better for producing lower RPM torque. Shorty headers are easier to install. That would be the main difference.

    I am glad I did not buy from this guy. He seems a little confused.
     
  19. Jul 24, 2009 at 10:07 AM
    #19
    NumNutz

    NumNutz One of the original 7928

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    So the shorties will provide better performance that the long tubes? And they are legal.
     
  20. Jul 24, 2009 at 10:14 AM
    #20
    bermise

    bermise [OP] Well-Known Member

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    Thats what the salesman at Doug Thorley told me. But a few members on here have upgraded from shorties to long tubes and have noticed increased power throughout the rpm range. There was also an article about long tube vs shorties in the Truckin magazine that noted increased power. I know they are illegal in California.
     
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