American Performance

Tuning tip of the WEEK...(1-15-22)
Finding an engine miss on the dyno can be simple. Lets say the power curve looks good till 4000ish rpm, and duplicates every time... makeing a short pull (through 3000rpm) with a plug wire (or coil pack) disconnected, if the engine power falls, reconect and move to the next cylinder, repeat till at some point you WILL have the cylinder ID'd that is causing the issue (not down on power with plug wire off). At this point, tighten up on plug gap, replace plug, replace plug wire/coil pack, or possible injector. IF this doesn't cue it, then start looking for a mechanical issue/s. Bent valve, weak valve spring/s, and or lack of compression...