High Performance Pontiac Homepage High Performance Pontiac

Vintage Pontiac Dyno Tuning

Prev Next
With both horsepower and torque on the rise, rather than changing jet sizes Keith recommended that the fuel pressure regulator be adjusted down to 7 psi from 7.5. Horsepower and torque both posted nice gains with 382 horsepower and 455.4 lb-ft of torque (increase of 5.1 hp and 16.1 lb-ft tq.). The A/F ratio at wide open throttle got progressively leaner and was now right at 11.3:1.
Dyno Tuning Basics - Jets, Timing, Camera, Action

With both horsepower and torque on the rise, rather than changing jet sizes Keith recommended that the fuel pressure regulator be adjusted down to 7 psi from 7.5. Horsepower and torque both posted nice gains with 382 horsepower and 455.4 lb-ft of torque (increase of 5.1 hp and 16.1 lb-ft tq.). The A/F ratio at wide open throttle got progressively leaner and was now right at 11.3:1.  View Related Article

 

Get Adobe Flash player