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  1. GN7 On the Dyno
    In the realm of engines, I always thought of combustion as an exothermic reaction that could only be ignited by a source of heat. The heat of compression in the case of a diesel and obviously a spark in a Spark Ignition engine. I recently had the pleasure of viewing a personal presentation and...
  2. GN7 On the Dyno
    What can be done to keep them down? Heads have signs of heat, oil is cooking under piston. 1550 * EGTs from 5500-6000. Iron Eagle 345, no intercooler, 8psi, 900hp. 150* intake temp. low 12AFR cruising. Low 11`s @WOT 13,000# heavy boat . I thought about giving it more fuel. ( Northstar engine...
  3. GN7 On the Dyno
    My nephews 24 ft htm has a 565 gen v 10-1 motor with edelbrock aluminum victor heads , roller cam, dominator , lightning exhausts, and has been running fine for years. All of a sudden at 5800 rpm it starts to miss a little so he brings it back home and we remove the sparkplugs. # 3 cylinder...
  4. Jet Boats
    Got to really use my new "mini" bore cam on this "oil burning" 460 Ford today , saved a lot of time and tear down Owner says "yeah its running a little rough , lacks power and she's blowin some oil out" the last pic is thru the Piston hole lookin at the con rod ;)
  5. PB Open Water
    Does anyone think, like I do, that the days of high performance internal combustion engines will be coming to an end fairly soon? And also, do you guys think the new breed of powerplants (whatever they are) will be better or worse than what we have now? As far as use in performance applications.
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