1996 Ford Probe Dynojet Dyno Sheet - 178 HP / 162 ft-lb with AEM O2 Data

This document is a Dynojet Research chassis dynamometer printout from Bristol Dyno (860 282 2248) / Victor Research (860 282 7223), dated 4/11/2006, comparing two dyno runs on the same vehicle. Run DYNORUN_056.drf (blue, 5:31:37 PM) recorded a maximum power of 178.31 hp and maximum torque of 162.69 ft-lbs, while run DYNORUN_040.drf (red, 4:01:03 PM) recorded 171.54 hp and 157.05 ft-lbs. The main graph plots power (hp) and torque (ft-lbs) against engine speed from roughly 2,000 to 7,000 RPM, with both curves peaking between about 6,000 and 6,500 RPM. A secondary plot shows AEM wideband O2 (air/fuel ratio) readings across the RPM range, with maximum values of 13.62 for run 056 and 14.11 for run 040. Both runs used SAE correction (CF: SAE, smoothing 3, SAE factor 0.96) under nearly identical conditions: approximately 72.5 °F, 30.37-30.38 in-Hg, and 21-23% humidity, run type RO. The printout shows a gain of roughly 6.8 hp and 5.6 ft-lbs between the earlier and later runs, likely reflecting tuning changes, with the later run running slightly richer.