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Another v-tec question

Discussion in 'General Tech and Maintenance' started by mozzandherb, Sep 27, 2005.

  1. mozzandherb

    mozzandherb Senior Member

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    This question is really vague, but I was just wondering at what rpm's does v-tec usually kick in where you know or feels it's working?
     
  2. VTECPOWER

    VTECPOWER Senior Member

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    What car/engine? If you have mod's you can hear it cross over, usually on a dohc vtec with a short ram/CAI you are good to hear it, on a sohc vtec its a little harder to hear, but possible.

    What is the point of this question?
     
  3. mozzandherb

    mozzandherb Senior Member

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    It's an jdm h22a from a 93 lude. Mods are i/h/e and a few others, and that's my question at what rpm's can you hear it cross over?
     
  4. DesertDx

    DesertDx Junior Member

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    The '99 lude that I was just driving crosses over around 5500, and as far as I know it is pretty stock other than i/h/e.
     
  5. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    mine it is 5100-5300 just after 5k is what im saying.
     
  6. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    It should be around 5300 rpm. It's very noticeable.
     
  7. formby

    formby learning in progress

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    the sound will be louder with IHE; however a properly tuned engine will have a straight powerband so vtec wont kick you in your seat...youll only hear it..or notice a surge in rpm velocity
     
  8. B16CRX

    B16CRX Senior Member

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    run open header and ge ton it once. you will hear it. It will make a loud pop sound and be much louder than normal.
     
  9. drpenguin

    drpenguin Senior Member

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    5g on the dot for my b16
     
  10. eg6sir

    eg6sir Supa Mod Moderator VIP

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    mine is very noticable when vtec engages..its loud as hell...i'm not sure if its normal to engage at like 5800 rpm...i'm running the USDM p30 ecu obd1..i have a JDM ITR intake mani. & TB..CTR cams...DC 4-2-1 header....2 1/4 catback..is there a better ecu so vtec hits earlier/ harder?...just curious..
     
  11. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    you need to chip your ECU becase that thing definitely aint tuned right. if you have anyone with a dyno and tuning exp, take your car to them...its needs some TLC.
     
  12. eg6sir

    eg6sir Supa Mod Moderator VIP

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    if you are refering to me...my ecu is stock...i dont want to chip this ecu...i will buy a diff. ecu for chipping purposes...which one do you recommend..
     
  13. formby

    formby learning in progress

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    the p30 is fine or a p28...you can chip either
     
  14. eg6sir

    eg6sir Supa Mod Moderator VIP

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    seeing that the USDM p30 is so rare and worth a little bit of cash, i'm gonna leave it alone, someone may need it....about how much do p28 or jdm p30 cost normally...or if someone on here has one chipped already..

    i'll look around on here
     
  15. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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  16. B16CRX

    B16CRX Senior Member

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    you can get a P28 from a junkyard for $50.
     
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