What was the maximum power recorded on this dyno sheet?

The best run, DYNORUN_056.drf, recorded a maximum power of 178.31 hp; the other run, DYNORUN_040.drf, recorded 171.54 hp.

What were the peak torque numbers for each run?

DYNORUN_056.drf made 162.69 ft-lbs of maximum torque, and DYNORUN_040.drf made 157.05 ft-lbs.

What correction factor and conditions were used for these dyno runs?

Both runs used the SAE correction factor (CF: SAE, smoothing 3, SAE 0.96). Conditions were 72.48 °F / 30.38 in-Hg / 23% humidity for run 056 and 72.56 °F / 30.37 in-Hg / 21% humidity for run 040.

What air/fuel (AEM O2) readings are shown?

The AEM O2 trace shows a maximum of 13.62 for DYNORUN_056.drf and 14.11 for DYNORUN_040.drf.

When and where were these dyno runs performed?

Both runs were made on 4/11/2006 (4:01:03 PM and 5:31:37 PM) at Bristol Dyno (860 282 2248) / Victor Research (860 282 7223) on a Dynojet Research dynamometer.

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

Dynojet dyno chart with AFR trace: 178.31 hp/162.69 lb-ft vs 171.54 hp/157.05 lb-ft

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DynoJet SAE power/torque/AFR chart overlaying two runs: 178.31 hp / 162.69 lb-ft (AEM O2 13.62) vs 171.54 hp / 157.05 lb-ft (AEM O2 14.11); 72F, 30.38 in-Hg, 23% humidity.

AI caption April 2006 · Photo 34 of 126

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.

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Frequently asked questions

What was the maximum power recorded on this dyno sheet?: The best run, DYNORUN_056.drf, recorded a maximum power of 178.31 hp; the other run, DYNORUN_040.drf, recorded 171.54 hp.
What were the peak torque numbers for each run?: DYNORUN_056.drf made 162.69 ft-lbs of maximum torque, and DYNORUN_040.drf made 157.05 ft-lbs.
What correction factor and conditions were used for these dyno runs?: Both runs used the SAE correction factor (CF: SAE, smoothing 3, SAE 0.96). Conditions were 72.48 °F / 30.38 in-Hg / 23% humidity for run 056 and 72.56 °F / 30.37 in-Hg / 21% humidity for run 040.
What air/fuel (AEM O2) readings are shown?: The AEM O2 trace shows a maximum of 13.62 for DYNORUN_056.drf and 14.11 for DYNORUN_040.drf.
When and where were these dyno runs performed?: Both runs were made on 4/11/2006 (4:01:03 PM and 5:31:37 PM) at Bristol Dyno (860 282 2248) / Victor Research (860 282 7223) on a Dynojet Research dynamometer.