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Advantages of VTEC

Discussion in 'Engine Tech / Drivetrain' started by ShadyLurker69, Oct 16, 2008.



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  1. ShadyLurker69

    ShadyLurker69 New Member 5+ Year Member

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    I'm doing a senior project on VTEC and would like to know what all of the advantages of having VTEC are.
     
    Last edited by a moderator: Oct 17, 2008
  2. ShadyLurker69

    ShadyLurker69 New Member 5+ Year Member

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    I know it's pretty obvious what the advantages are but id like to know all i can
     
  3. 98civikdx

    98civikdx 98civik Registered VIP 5+ Year Member

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  4. bizoneoeh

    bizoneoeh Ex-Gang Member Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    I know I know..... vtec and vtec ain't s**t especially if you're boosted imo. Nothing but noise if you ask me.
     
    Last edited by a moderator: Oct 17, 2008
  5. Billy.

    Billy. Has returned ;-) Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    wha wha WHA?? :shock:

    vtec loves boost. boost loves vtec. how do you think i made over 300hp on a measly 7 psi of boost. a stock LS wouldnt come close to that, no way no how
     
  6. 98civikdx

    98civikdx 98civik Registered VIP 5+ Year Member

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    Not gonna lie, I love the VTEC in my unboosted B16. Now that I've gone VTEC, I ain't going back!
     
  7. Billy.

    Billy. Has returned ;-) Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    to answer the op:


    the only advantage that vtec gives over a standard engine is the addition of a second power curve created by the hi-cam lobes. a typical engine begins to lose power at the top of its rpm range, but a vtec engine is given a 2nd power curve increasing its ability to make power at higher rpms

    i love this dyno: :D

    just when the first power curve beings to taper off vtec engages at 5400 rpm, almost instantaneously changing the intake and exhaust valve timing and duration which you can see by the sharp increase in power. the power band jumped from 115whp to 137whp in about 100 rpms

    [​IMG]
     
    Last edited: Oct 16, 2008
  8. 12.8:1 Ls/vtec

    12.8:1 Ls/vtec IT'S OVER NINE THOUSAND!! Registered VIP Registered OG 5+ Year Member

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    that is a terrible tune, smooth is skill, that is kinda amateurish tuning. Wanting the most noise not making the most usable power.
     
  9. Steven.

    Steven. Formally Green 91 Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    keep on topic guys
     
  10. one6

    one6 Shorts and Sandals FTW! Registered VIP 5+ Year Member

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    There's only one real advantage to variable valve timing: increased fuel economy and decreased emissions under normal driving, and increased power during spirited driving. Oh, and the sound!
     
  11. civhatch92

    civhatch92 That's my honda. Registered VIP Registered OG 5+ Year Member

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  12. Kaotic_Zeus

    Kaotic_Zeus Most hated man Registered VIP Registered OG 5+ Year Member

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    only advantage is fuel economy really. It'd be better without it, and have just a aggresive cam profile throughout the whole rpm range. But some gay little b***h would complain about the noise and wasting too much gas when they're trying to pick up some groceries.
     
  13. vandynamics

    vandynamics New Member Registered VIP 5+ Year Member 10+ Year Member

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    i beg to differ. mike (handlebars) made 300+ on a bone stock b18b stock map sensor, crome street tune.
     
  14. DarkCreep

    DarkCreep D16Y8+T Registered VIP Registered OG 5+ Year Member

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  15. Billy.

    Billy. Has returned ;-) Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    its not a tune. its a base run of a nearly stock motor
    on .5 bar of boost?
     
  16. Bheims

    Bheims Bustin windows outcha car Registered VIP Registered OG 5+ Year Member

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  17. vandynamics

    vandynamics New Member Registered VIP 5+ Year Member 10+ Year Member

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    stock map is good up to 9 psi
     


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