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torque vs hp

Discussion in 'Dyno Figures' started by samnon, Nov 11, 2012.

  1. samnon

    samnon New Member

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    hey i gotta vt ss it makes 866 nm of torque and 269 kw

    has just about everything done to it possible without stroking it, i've been looking through the dyno figures and a lot of ls1 seem to be making way more kw than me but not the torque? anyone got any info for me on why?
     
  2. TI3VOM

    TI3VOM Active Member

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    Different modifications create differences in power output. It's most likely they have a bigger cam than you and that's why they have more KW's.
     
  3. samnon

    samnon New Member

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    i gotta 240 248 cam
     
  4. Munz

    Munz Right Foot Action

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    How much power did your car make before cam modifications?
     
  5. samnon

    samnon New Member

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    212 kw from mafless, than pretty much done everything cuz the motor killed bearings rods and pistons
     
  6. Cava454

    Cava454 Member

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    This is a ls1 yeah? Did u use the bigger is best approach when u decided on your camshaft?
     
  7. samnon

    samnon New Member

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    ls1 yeah, and yeah i know cams too big was more after a lumpy idle note than power, originally had a 233 233 cam after change power never changed anyway
     
  8. Cava454

    Cava454 Member

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    No ****, that cam grind is horrible. Be a nugget on the street.
     
  9. samnon

    samnon New Member

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    driveability actually changed bugger all its auto so not so bad
     
  10. Cava454

    Cava454 Member

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    How big is ur converter? this should have at least 4000-4500
     
  11. ari666

    ari666 250,000 hits

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  12. Cava454

    Cava454 Member

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    Lol bigger cam... Make me laugh

    For shits and giggles ill make more power then u on the dyno with a cam much much much smaller then yours and ill spank you on the street. That setup you have is insanely wrong.
     
  13. Munz

    Munz Right Foot Action

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    First thing I'm gonna say its the dyno your getting your work done on, it seems it pulls low numbers but thats no issue the numbers you need to look at are the from the moment you went mafless (212rwkw) to the cam (269rwkw) thats 57rwkw from doing the cam. I think thats pretty damn good.

    As the cam is big, PTV would have been close - have you got valve reliefs in the pistons?
    Whats been done to the heads? And how far are you spinning the motor?
     
  14. TI3VOM

    TI3VOM Active Member

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    Calm down fellas.
    I was under the impression that a bigger cam will increase the power your car has (higher up in the revs, being a big cam) thus giving a higher KW figure.
    I know this is obviously not the only thing that will give the end result, but it could explain why some people are making more KW's than him, yet he has more torque.

    So which one of you two want to actually help answer his question? I seem to be the only person that has had a go at giving him a reason behind why his car makes less KW's but more torque than other peoples.
     
  15. ari666

    ari666 250,000 hits

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    866 nm of torque and 269 kw:

    are both useless numbers without RPM. without knowing the variables everyone is just guessing. and if i had to guess, my guess is his stick is too big for his engine and it wont rev. thus a good low rpm power, and balls revs.

    edit* but i am just guessing :p
     
  16. Cava454

    Cava454 Member

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    Big stick = plenty top end and not as much downlow.

    Dyno figures are just that. Wank talk you have between mates.
     
  17. Big-Al

    Big-Al Banned

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    well you're making more torque than an LS1 with a blower so you shouldn't complain too much
     
  18. immortality

    immortality Moderator Staff Member

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    Dyno's measure torque at the rear wheels which is a LOT different to torque at the flywheel. Things like transmission ratio's and diff gears multiply torque, even things like wheel diameters/tyre pressurs and types of oil used can influence dyno results (as well as how the vehicle is trapped down on the dyno).

    Engines produce torque, HP is a purely mathematical equation or HP = torque x rpm/5252
     
  19. samnon

    samnon New Member

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    IMAG0016.jpg

    thats the dyno for it, i'm not chasing massive power for it, i'm happy enough with how it goes was just wondering about the torque, it seems pretty high for a ls1.
     
  20. samnon

    samnon New Member

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    its been on dyno fair few times for retunes when i've changed stuff, there forged mahle pistons with valve reliefs the heads are ported with bigger valves its gotta ls2 intake with92mm throttle body. its peaking power around 6400
     

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