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compression

  1. Engine Issues

    Problems and Service
    I have a misfire on cylinder #3, It only happens after revving the engine really high then when I idle, it stops working. When I drive up to maybe 25 mp/h it kicks back in and I feel it jolt and is fine until I idle. I have replaced spark plugs for all cylinders, and the coil pack for cylinder...
  2. Compression Specs for LAP 2.2 Ecotec?

    Engine Mods
    I'm getting pretty close to pulling the trigger on a supercharger kit, but want to check compression first. I've been Googling this for a while, but I've found varying answers between 120 psi all the way up to 225 psi. Does anyone know what the "perfect/factory" range is, and the "still...
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