cam specs....

Discussion in 'Drag Racing' started by markus, Jun 26, 2008.

  1. markus

    markus Silver Supporting Members

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    heres something i know nothing about. i know theres other members that probly dont. what do all the numbers in the cam specs mean (lift, duration, etc)? what is considered aggressive? what is considered TOO aggressive? what is considered conservative and what is just plain old weak? this is in regards to us regular NA 6.1 folk. right now i have an hhp stage 2 cam and id like to throw in a much more aggressive cam. what is the most aggressive cam, streetability isnt really much of an issue. what types of specs should i be looking for to put the most power to the ground?
     
  2. CentralTexHemi

    CentralTexHemi PUNISHER

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    From Inertia

    We announced a while back that we were coming out with our own line of camshafts and they are now available. Essentially we have 13 different lobe profiles that can be used on either the intake or exhaust. So the way to build your own cam is to select the intake lobe baised on duration @0.050" and lift then select the exhaust lobe baised on the same thing. Then determine the lobe separation angle desired (LSA) and then if any advance or retard is desired so given the lobes shown below if you wanted a 205 intake/209 exhaust duration cam with 0.520"/0.531" lift on a 114 degree LSA with a 2 degree advance you would order a: C/D/114+2. the next complication is we also have the ability to play with the ramp approaches of the lobes so the duration can be increased or decreased by approximately 5 degrees either way without effecting lift. So if the duration is reduced then add a "-" in front of the lobe letter or if it's increased put a "+" in front. So if you took the above cam number and wanted the same lift but less intake duration and more exhaust you would specify a -A/+B/114+2 and you would get 200 intake / 214 exhaust duration with 0.520" intake and 0.531" exhaust lift and the same 114 LSA and 2 degrees advanced. Piece of cake, eh? For those of you not wanting to get that intimate with camshaft selection we will have some pre designed cams for given applications or let us know what you are looking for and we can suggest a profile.
     
  3. 1fastsedan

    1fastsedan Destroyer of Warranties

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    There isn't much more cam than an HHP Stage II that you can run on a stock block. Here's a pretty good thread to learn about cams.
    http://www.lxforums.com/board/showthread.php?p=1622066#post1622066
     
  4. HalV48

    HalV48 They Call Me Patron

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    Are you sure your going to stay NA Marcus? My last cam on my stock block was .570/.555 218/224 114 LSA designed for N2O. 1st outing with a 100 shot trapped 122. Without tuning, that was a pretty big cam for a 6.1. With stock pistons, .570 is pretty much the max lift. I'm sure that BES pretty much matched his cam profile to his heads. Just throwing a bigger cam doesn't mean you will get bigger gains, or much gain for the difference in profile.
    Do you have a HS TQ converter yet? I don't remember. Halfshafts? Maximize what you have. You can do a N2O kit for less than a cam and install. Would have far superior gains than a bigger cam, plus you only use it when you want to.

    There is much more to a cam profile that just Lift/Duration/LSA.
     
  5. markus

    markus Silver Supporting Members

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    i have a protorque 2800. id ideally like to stay na because i just dont wanna keep droppin lotsa dough into my car. i just wanna maximize what ive got now. no halfshafts although i dont plan on putting on dr's anyway. if anything id take the 7L route before putting a blower in, id like to keep it NA. the cam i had in mind was the track warrior.
     
  6. markus

    markus Silver Supporting Members

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    ive seen this before. i appreciate the input bro but honestly that is all german to me.
     
  7. CentralTexHemi

    CentralTexHemi PUNISHER

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    Sorry hope you find that bumpstick that gives you lots of torque the way you like it
     
  8. markus

    markus Silver Supporting Members

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    its not IMPERATIVE but id just like to drop in the biggest power making cam on the market. maybe ill just put a big log in there.
     
  9. CentralTexHemi

    CentralTexHemi PUNISHER

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    LOL you want what we all want it's just that each cam works different with complimentary mods and tuning have you talked to Andy at PPP