Originally Posted by
brianeclipse98
but i know of no one that can nail an aem tune with on the dyno the 1st time with no street tune.
I've never had a problem. Usually when nothing breaks during tuning it takes about 30 minutes on the street and 1-2 hours dyno time. Some didn't even need the street tune. But that's when nothing goes wrong, which rarely happens on a big buildup.
Originally Posted by
orrickr
do tell as to why ems must constantly be "tweaked".
Because it's so much fun to play with it's hard to resist