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torque that baby

Discussion in 'General Tech and Maintenance' started by PhyRe, Nov 17, 2004.

  1. PhyRe

    PhyRe Senior Member

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    alot of people come on here and say o i have such and such a car with blah blah motor and what can i do to get xxxxxxwhp. most of the time there goals are resonable. now my ? is, is it reasonable to have a torque goal instead of a hp goal.
    i saw in someones sig that " horse power sell cars torque wins races" or something like that and it got me thinkin. are there more torque friendly upgrades that can be done. in know if you are going n/a 4-2-1 header give you low end but thats the only thing i can think of. and i know a turbo gives you nice hp and tq but is there something that just gives ass loads of tq.
    i love my job it gives me time to think bout shit like this
     
  2. sohcslammer

    sohcslammer Senior Member

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    Displacement
     
  3. pissedoffsol

    pissedoffsol RETIRED

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    horsepower is a function of rpm and torque.

    rev higher, and you'll make more power (provided the torque doesn't fall off)

    hp = (tq X rpm) / 5250

    if you want a torque monster- buy something that redlines before 5250.
    hp and tq will always be the exact same at this rpm.

    buying a part just for torque is impossible, unless it only is functional below 5250rpms.

    quite frankly, its stupid.
     
  4. PhyRe

    PhyRe Senior Member

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    ok. that makes sence why no one has said anything about it befor. thanks


    so why does the k20(jdm) have more tq than h22(usdm) (just something i was think bout at work)
     
  5. nfn15037

    nfn15037 Senior Member

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    Torque @ what RPM? You can't just compare peak torque #s.
     
  6. DelSlo

    DelSlo Senior Member

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    tuning!

    a good tourque bolt on but expensive, simple enough....supercharger, instant hp and torque, but when you are dealing with honda motors, high torque numbers arent usually a goal! lol

    atleast you are thinking a bit outside the box, that never hurts! :D
     
  7. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    I'd like to amend this a little bit.

    Adding torque can be accomplished by increasing displacement, increasing compression, or force-feeding an engine compressed air.

    While revving higher does indeed give you torque for those extra rpm's, it only does it for THOSE rpm's. Simply revving higher does not increase torque. Adding torque (by the means mentioned above) will give you more torque throughout the powerband.

    You don't need to buy something that redlines below 5250 to have a torque monster. Look at the WRX STi. 300 ft-lbs of torque, 300 horsepower, and it redlines at about 7000 rpm.

    B, you're right, buying something ONLY for torque is impossible. Because increasing torque will also increase horsepower accordingly. However, your statement about torque only being functional below 5250 rpm isn't true.

    Torque is force - mass x acceleration, or in the rotational sense, mass x (velocity^2)/r. Horsepower is work - an integral of force (or is it a derivative?). Anyway, torque is how much "oomph" an engine can produce. Horsepower is how long an engine can apply that force (throughout the powerband).

    I think this guy is asking, can he increase the torque of his engine, instead of just buying the piddly bolt-on parts that either help an engine breathe better (usually increasing horsepower) or just move the powerband around.
     
  8. sohcslammer

    sohcslammer Senior Member

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  9. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    Thank you Chris. I was going to spew all over Brian's post, but you prevented me from doing so. :)
     
  10. pissedoffsol

    pissedoffsol RETIRED

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    that's what i was trying to write, but i did a piss poor job at it, huh? lol
     
  11. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    Yup. :p

    Go bury yourself in some engineering textbooks for a while. :lol:
     
  12. pissedoffsol

    pissedoffsol RETIRED

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    naw, i'd rather just make this website work and stuff :D
     
  13. hcivic.com

    hcivic.com Senior Member

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    if you want a fast car with loads of torque go get a v8
     
  14. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    You woulda just flamed him really hard and then banned him. :calban: We like Brian, so I thought I'd kinda just slap him around a little. :D
     
  15. pissedoffsol

    pissedoffsol RETIRED

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  16. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    No way man. I was a moderator of the "C-Series" forum back in the dizzay. I've got a "no-ban" clause in my contract.
     
  17. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    Yeah, that's cool. I think he needs more of that. ;) You saved me a lot of typing anyway- I no doubt would have been a lot more verbose with my explanation and confused a lot of people. :lol: :(
     
  18. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    dohcvtec_accord - The stupid version of Calesta. :D
     
  19. Cashizslick

    Cashizslick !i!i!i!i!i!i!i!i!i!i!i!

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    I might as well just follow this up . . The only reason Vtec motors make ANY power is because they have a "linear" torque curve. I.E. their torque numbers might not be much, but multiply em by 8.2k rpms and you get a "quick" car that gets decent gas milage.
     
  20. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    Exactly. Honda engines breathe very well from the factory, which is one of the reasons they can rev so high and still make power. VTEC only helps that. You can rev a Grand Am to 6k RPM, but you won't be making any power. :lol:
     
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