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lake header performance

Discussion in 'The Hokey Ass Message Board' started by pkj, Apr 13, 2007.

  1. pkj
    Joined: Feb 12, 2007
    Posts: 88

    pkj
    Member

    besides being pretty cool, how do they stack up performance wise?
    compared to say a decent set of ram horns, or to full length headers.
    thanks, pkj
     
  2. They probably perform as well as a set of rams horns but no one is going to run rams horns open.

    No comparison to a set of well built full length headers, your dealing with 60+ year old technology on a set of lakesters.
     
  3. atomickustom
    Joined: Aug 30, 2005
    Posts: 3,407

    atomickustom
    Member

    My guess is they **** unless they're open wide open. Anyone have any before/after data?
     
  4. el Scotto
    Joined: Mar 3, 2004
    Posts: 4,722

    el Scotto
    Member
    from Tracy, CA

    My buddy said a set of Lakes headers makes 50 less horsepower than a set of regular full tube headers. I don't know where he got that figure, but I'm going to trust him. He builds crazy race ****. Something about exhaust pulses not scavenging effectively and having to push the exhaust out vs. using a set of long tubes and valve timing to have the exhaust "pull" itself out. Similar reasoning behind the poor performance of "block hugger" headers, and I know that block hugger headers **** compared to long tubes, because I've had them on the same engine and could feel the difference in the way the car pulled, so I'm building a set of 1 7/8 primary long tubes for my car.
     
  5. dragrcr50
    Joined: Jul 25, 2005
    Posts: 3,865

    dragrcr50
    Member

    My lakes look way kool, sound like a harley on steroids and prolly give up 40 hp over long headers, Ill just build more motor...
     

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  6. DirtyThirty
    Joined: Mar 8, 2007
    Posts: 2,396

    DirtyThirty
    Member
    from nowhere...

    haha...HELL YEAH!:D
     
  7. Kevin Lee
    Joined: Nov 12, 2001
    Posts: 7,676

    Kevin Lee
    Super Moderator
    Staff Member

    40hp... 50hp... are you guys serious? That's a real question, not some sort dig. I haven't heard anything like this before.
     
  8. fordy7coupe
    Joined: Sep 29, 2006
    Posts: 103

    fordy7coupe
    Member
    from Wylie, TX

    "Aerodynamics are for people who can't build engines." Enzo Ferrari
     
  9. AHotRod
    Joined: Jul 27, 2001
    Posts: 12,362

    AHotRod
    Member

    I been driving mine for years, and with the exhaust having to run into a wall, then find it's way back and down through to the gl*** packs.....well, it's killing HP.
    Uncap 'em ? .....it really wakes things up, including the neiborhood.
    I would guess that a real set of tuned under ch***is headers would be worth 30+HP over what I have now.
    But, the car only weighs 1980 lbs. so it still runs just fine.
     

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  10. old beet
    Joined: Sep 25, 2002
    Posts: 5,750

    old beet
    Member

    When K-MEMBER did his on the 460 Ford, ran like **** when capped. He welded a stud on the inside of the cap and added a curved piece that directed the exhuast down into the system. Made a world of difference. Easy to do and works..........OLDBEET
     
    Snicklefritz65 likes this.
  11. 4decue
    Joined: Mar 15, 2017
    Posts: 14

    4decue

    I am running these pipes with header wrap and they work just fine capped. run under bucket into a set of Hollywood gl*** packs and exits the rear.
     
  12. bchctybob
    Joined: Sep 18, 2011
    Posts: 6,103

    bchctybob
    Member

    I might.................good ol' lakes plugs.

    IMG_0942.JPG IMG_0951.JPG
     
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  13. bchctybob
    Joined: Sep 18, 2011
    Posts: 6,103

    bchctybob
    Member

    Lakes style headers are not much more than tubing manifolds so I would guess they give up a lot performance-wise when compared to a well engineered set of 4 tube headers. It would be interesting to see someone put them on a dyno and do an A vs B test. Like they've done with 3x2s vs single 4bbl intakes.
    I could see how some sort of deflector in the collector helping smooth the flow into the muffler system would help. Good idea.
     
    Snicklefritz65 likes this.
  14. Would be an interesting comparison. Some tuning could be done on them perhaps with cone length. I know that cone length and diameter makes a world of difference over just straight pipes on a bike. But I have not seen a proper equation for tuning so for someone like me (or the most of the rest of you bone heads) it would just be trial and error.

    By the way, Rams horns straight out of the manifold sound a lot like an old John Deer. LOL Lakes plugs ( dumps) don't sound too bad though. :D
     

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