Suck, Squish, Bang, Blow: Part 5
The power output of your engine will vary from run to run for various reasons, but usually it is due to heat. The first run will almost always be high, and power should stabilize by the third or fourth pull. If you can accurately monitor coolant temperature, always test at the same temperature. Otherwise, at least allow a consistent amount of time between runs. These three dyno pulls were made back-to- back on the same car. Note how much the power falls off on each run.
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