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vtec wiring

Discussion in 'ECU's, Electronics, and Tuning' started by 88rex, Sep 30, 2004.

  1. 88rex

    88rex Member

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    i was just wondering instead of wiring the vtec to the ecu can you use an rpm activated switch off of my msd6al ignition box because you can change rpm limits. please help im new to the vtec thing
     
  2. cycloneb18c3

    cycloneb18c3 Senior Member

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    you can, but I wouldnt reccommend it. The ecu adds fuel when vtec engages, and changes the ignition timing, and it also looks for reasons not to engage vtec, like low oil pressure. Using a RPM activated switch does none of this and could cause problems(like blown engines, due to no or low oil)
    just do it the right way.
     
  3. 88rex

    88rex Member

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  4. pissedoffsol

    pissedoffsol RETIRED

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    yeah- rpm based switches suck... do it the right way. you'll be much happier, and faster
     
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