|
Tune Time Performance (TTP) Technician Bill Fay straps down the Grand National for another round of dyno pulls. On the half-hour ride to TTP your author noticed the AFR (Air/Fuel mixture ratio) was lean at WOT/full boost (12.2:1 and climbing). Also at idle it started to run rough with a very lean 16.0 AFR (14.0 to 15.0 is normal). Clearly it was moving more air than the previous tune had accounted for. View Related Article
|
|