Engine wont rev in the 1/4 mile

Discussion in 'Engine Topic' started by Domobomb, Sep 14, 2017.

  1. budro6968

    budro6968 Veteran Member

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    Apr 2, 2016
    Jax Florida
    Are your throttle plates opening completely at full throttle.
     
  2. GoldenOne7710

    GoldenOne7710 Veteran Member Lifetime Gold Member

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    Jun 23, 2004
    Athens, GA
    What size tire did you use out back this time? You probably would benefit with a little more converter, but I wouldn't overdo it if you drive mostly on the street. I like a happy medium that performs well on AND off the track.
     
  3. 71RS6SPD

    71RS6SPD Veteran Member

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    Nov 14, 2016
    Are you now sure you are getting full power? I had a similar issue and it was timing. After testing I ended up adding 4 more degrees and it made a huge difference. Mine ran fine and never skipped but just felt like less power up top than there should be - at first I was questioning the cam as it seemed like a stock 4500 rpm unit. With the added 4 degrees it pulls up to 6k now and I do intend to add more timing when the weather breaks. I only have 1k miles on it so far. I have read a lot about this and many engines like more than the 36 recommended by the 'general rules'. I'm at 38 now and do intend to add more when I start driving it again. In my experience, lean fuel issues cause backfires/misfires and zero output issues. If it's running smooth but has low power at rpm, it's probably a lack of timing at WOT@rpm. Your plugs could also show a lean issue. I have spoken to many that run 40-44 degrees without vac.
     
  4. tom3

    tom3 Veteran Member

    10,765
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    Aug 1, 1999
    ohio
    Sure made some improvement with the changes!
     
  5. 1980RS

    1980RS Veteran Member

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    Jun 17, 2006
    Put a good converter in that car and you are in the 12's easy. That Camaro was pretty soft out of the hole.
     
  6. 79RedZ

    79RedZ Veteran Member

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    Mar 24, 2009
    Hamilton,MI
    Definitely agree with muscle car on this. It was soft coming off the line.
     
    muscl car likes this.

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