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Long Tube Headers - Pros/Cons

Discussion in 'SVT Shelby GT500' started by G-Force, Jun 4, 2010.

  1. G-Force

    G-Force Member Established Member

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    I am thinking about buying a set of Kooks LT headers for my Shelby. Does anyone have any issues running LT headers only without any additional upgrades such as ported TB or use of larger size blowers? I have heard from other Terminator owners that the addition of LT headers has yielded negative power results, but wanted to see if this was the case with others who may have tried this.
     
  2. hollowch

    hollowch Mr. The Squirrel Established Member

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    There have been a number of threads regarding the pros and cons of long/short tube headers. Do a search Bro Namath
     
  3. G-Force

    G-Force Member Established Member

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    I understand the trade offs between shorties and LT's. I was more interested in seeing if anyone had any issues or regrets with running LT's vs. keeping the factory setup.
     
  4. stkjock

    stkjock Corn Powered 900 HP! Established Member

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    go ARH! good pick up in power and less boost
     
  5. 09Troublemaker

    09Troublemaker " That don't sound stock" Established Member

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    love my kooks--no regrets here or issues
     
  6. evasive

    evasive Premium Member Premium Member

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    Which ones have to be removed to work on the trans? If you leave them on, how are the clearance issues to work on the trans (clutch, etc)? Aren't some significantly easier to work with than others?
     
  7. Kostas

    Kostas New Member Established Member

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    My AR headers were removed for clutch installation. Not sure if it was done to make the clutch installation easier, or becouse there was no room and had to be done....
     
  8. mobeydick

    mobeydick New Member Established Member

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    Recent articles in both major mustang magazines show about a 4/5% increase in hp/tq.
    That cost about $1,800.00. Is it worth $1,800.00 for a 4/5% increase in hp/tq. For me it was, the folks at Kennie Bell don’t think it is and discourage there use. (They sell New Blowers) [email protected] just installed a set of there headers on his new stock GT500 and gained 20hp & 28tq with the stock Mufflers. (4/5%) [Tom sells headers but he don’t discourage the use of different blowers] The more Engine mods the more I think they must help.
     
  9. blueovalkid

    blueovalkid Ford nut Established Member

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    I wouldnt recommend LT headers to anyone who doesnt have a KB/Whipple/TVS. The price and difficult install make it questionable in my mind for anyone not looking to make 700rwhp+. Its just too easy to make 500-600rwhp with the factory manifolds and factory cats. Many also find it difficult to get the exhaust note they are looking for with long tubes.
     
  10. Robertt305

    Robertt305 Devil Dog Established Member

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    Dynotech don't have to be removed for trans removal
     
  11. skyhighsd

    skyhighsd New Member Established Member

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    If you are going to do LT's why not buy full length and not mid length like kooks, I would not do any that are not full length. Like Robertt305 said dnyotech's do not need to come off for the trans and the install is not near as bad as people say, did mine a few weeks back and they are no where near as bad as I thought it would be.
     
  12. bpmurr

    bpmurr New Member Established Member

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    Remember that 2011 is bone stock as well. There has been no tuning done. With a good tune it might yield better results.
     
  13. G-Force

    G-Force Member Established Member

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    Thanks for the great insights everyone. I knew there were two camps to this one. I also considered just buying the 3" Bassani catted system, but they complete setup with mufflers costs more than a set of coated headers with catted x-pipe. Anyone try that setup other than 5.0 magazine?
     
  14. ZOMBEAST

    ZOMBEAST Killed by Death Established Member

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    In the process of installing some ARH 1 7/8". You will not be able to drop the trans with the headers bolted on. IMO, I think you can get away with just loosening up the driver's side. If not, you may also have to loosen the passenger side. I would like to here from any mechanics on this. There are no other clearance issues, unless you lower the engine 1/2". I was under the impression that this was addressed by ARH, but apparently not since these were purchased directly from ARH about 6 weeks ago. I had to dimple one primary tube. Not really a big deal. You just have to be prepared to do it.

    BTW, these were Swain coated and then painted with VHT.

    [​IMG]
     
    Last edited: Jun 7, 2010
  15. skyhighsd

    skyhighsd New Member Established Member

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    Mike did you try to move the motor over before you dimpled the tube?
     
  16. ZOMBEAST

    ZOMBEAST Killed by Death Established Member

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    Brian, I couldn't move it at all with the BMR engine lowering k-member. Between Ford and BMR's tolerances, there was no movement possible. The only possible alternative I could see would be to take out some of the holes on the engine mount brackets. I think a 1/4 inch on the driver's side of each bracket would do the trick. This way the motor could be pushed to the passenger side. I'm not sure if this issue exists on the 1 3/4" headers.

    Before I bolted the rack in, I checked it and found the some dimpling was required. I used a marker so I wouldn't go overboard. I'm happy with how it went.
     
  17. skyhighsd

    skyhighsd New Member Established Member

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    I see, I didnt have that issue with the racecraft k member but there mounts are way different then bmr. I did take a die grinder to my motor mount brackets but that was for a different reason. Good to see you got it together :beer:
     
  18. monX

    monX New Member Established Member

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    This. :beer:
     
  19. ironpeddler

    ironpeddler New Member Established Member

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    I also installed a set of ARH 1-7/8 that were coated by Jet-Hot about a week ago. If you have the Lethal lowering kit which I do, you will need to bang on the primaries so that they will not contact the steering shaft. Not a big deal like someone already mentioned but it is a necessity.
     
  20. evasive

    evasive Premium Member Premium Member

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    Nice, you'll love the Swain...far better than the other stuff out there.
     

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