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VTEC = What RPM?

Discussion in 'HYBRID -> ED-EF / DA' started by civic650, Jan 28, 2005.

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  1. civic650

    civic650 Junior Member

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    What RPM does VTEC start in a B18C1 (95 GSR) motor?
     
  2. sihatchback_RL

    sihatchback_RL Senior Member

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    4500, with right speed and engine temp.
     
  3. Riceras

    Riceras Senior Member

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    I am 99% Sure that a GSR VTEC kicks in at 6000-6200 on a stock B18C
     
  4. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    I'm 99% sure that VTEC is set at 4400rpm on a stock B18C1. :p
     
  5. nfn15037

    nfn15037 Senior Member

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    Here is your final 1%, it engages at 4400 RPMs on a stock P72 ECU :p
     
  6. integraslut78

    integraslut78 Stylus DJ Extraordinaire

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    If my mind serves me right which it does every once in a while i believe its 4400.
    I forget about when the secondaries kick in but that was not your question.
     
  7. StarBellieAngel

    StarBellieAngel Senior Member

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    well, i am 1872498273983743% sure it's 4400 on a stock ecu.
     
  8. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    Thanks man. I was too lazy to reach for the service manual- even though it's only about 5 feet away from my head. :lol:
     
  9. civic650

    civic650 Junior Member

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    It is a stock P72-A05 and a stock motor. I don't have a tach so thanks for everyone's help.
     
  10. spoonsivtecs

    spoonsivtecs Junior Member

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    Vtec on my 94 GSR b18c1 engages at 6200, ALL THE TIME EVERYTIME! if your engaging at 4400 check your ecu for a chip, i bought a chip off of ebay that will drop vtec engagement to 4400, and raises redline to 8900

    stock usdm b18c1 vtec 6200rpms and redline is 8200rpms..
    vtec engagement has many variables it goes through b4 engagement.
     
  11. DelSlo

    DelSlo Senior Member

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    no man, im pretty sure it IS 4400.....
     
  12. aLLmOtOr

    aLLmOtOr Senior Member

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    I thought it was 4800 then 5200 ... hhahahahahahaa .. variables before Vtec can work? How so?
     
  13. sohcslammer

    sohcslammer Senior Member

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    Your cam lobes switch over at 4400 rpms. Your secondary butterflys in your intake manifold open at around 6k. That is the sound you hear that you THINK is VTEC. And yes, factors affect the switching of your cam lobes, ie. engine load, temperature, rpm, and oil pressure to name a few. Hope that helps. B)
     
  14. nfn15037

    nfn15037 Senior Member

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    Yep, you are wrong! VTEC is @ 4400, the secondary butterflies open at 5700 like everyone has said.


    FWIW, the ECU needs coolant temp, VTEC oil pressure, vehicle speed, and throttle position to engage VTEC. If will decide when or even if to engage VTEC based on those inputs.
     
  15. jamesA

    jamesA Well known pissed off telephone guy VIP

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    Are you sure it wasn't already chipped when you bought the car? Cal, and like 80 other people already told everyone stock VTEC is 4400 rpm... obviously someone messed with your GSR before you bought it.
     
  16. TeamUrbanChaos

    TeamUrbanChaos Certified H22 Super-tech

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    it is deffiantely 4400....my firends got A 96 GSR and it enages at 4400
     
  17. swanny

    swanny Senior Member

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    I will be the 39484358 person to say 4400 rpm,
     
  18. Hooch

    Hooch New Member

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    B18C1

    VTEC Switchover : 4400 rpm
    VTEC Engagement: 5800 Rpm

    common found in 1994-2001 integra GS-R

    hope this helps ya :)
     
  19. BrutalB83

    BrutalB83 Brutal Moderator Moderator VIP

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    This thread is from 4 years ago dude. Please check the dates on stuff before you post from now on...
     
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