This 2009 Roush P51B™ delivers 510 horsepower and 510 lb.-ft. of torque matching it as the most powerful ROUSH® Mustang ever produced. In order to get this type of power from the Ford 4.6L, 3-valve engine, ROUSH® technicians replace many of the internal components with stronger parts including forged aluminum pistons (with an increased dish to lower the compression ratio from 9.8 to 8.6), forged steel H-Beam connecting rods and a forged steel crankshaft and there is an upgraded high-capacity fuel delivery system installed. ROUSH® also upgraded the clutch and includes a custom-calibration for the ECM to manage the performance of the next-generation R2300 ROUSHcharger®.
The 2009 Roush P51B™ has incorporated many updates since the 2008 P51A™. Among the changes for the 2009 P-51B™ are a secondary sheave FEAD, the addition of the ROUSH® 6-piston brakes which can be seen through the new black chrome wheels, and a ROUSH® vent pod gauge with a boost gauge. The car is fitted with the Cooper RS3 ultra-high performance tires, which, combined with the ROUSH® Stage 3™ suspension give a road-hugging ride and nearly unmatched cornering ability. The Ford factory Vapor paint code is accented with Olive Drab green badging to match the World War II motif, and a rear decklid black-out panel is included. The P-51B™ logo adorns the shifter ball, floor mats and is embroidered into the leather seating. Further matching the history of the fighter plane, which often saw different metal panels used to patch the planes back into flying and fighting condition, the six-piece ROUSH® aerobody kit will have both Vapor and Silver colors utilized for a subtle, but highly unique, look on the road.
This is a car for the true collector - she is an original, low miles example of the Roush P51Bâ„¢ in pristine condition