Originally Posted by raptor1956
How about doing a test like this:
Begin with a brand new set of OEM plugs and a brand new set of the Pulsars, then...
1. Dyno with the OEM plugs
2. Swap in the Pulsars, then Dyno
3. Repeat 1 and 2 3X and do all tests back-to-back.
This would be possible if the cars computer would adjust extremely quickly. the cars computer has to learn new fuel trims and new timing with different spark plugs everytime. so doing it back to back would be pointless and wont have reliable numbers. this is why I've tested a pre-learn stage then later on a learned stage dyno test.