![]() ![]() In addition to the convertible, a T-top and a coupe version of the car were available. The rear wing of the Formula and Trans Am has also been improved with a new wraparound design. In 1991, the front end of the new 1991 Pontiac Firebird was updated, in addition to the Camaro. It is important to research the car’s condition and recent sales of similar models before making an offer. If the Firebird Formula has been modified or has a unique paint job, its value can increase significantly. However, the value can be much higher or lower depending on the specifics of the car. On average, a 1991 Firebird Formula in excellent condition can fetch up to $15,000. The value of a 1991 Firebird Formula can vary depending on several factors such as the condition of the car, its mileage, and any aftermarket modifications that may have been done. What Is The Value Of A 1991 Firebird Formula? It is one of the best acceleration machines in Class C, but its nitrous output is subpar. The top speed on the Pontiac Firebird Formula is 218 km/h (135 mph), which is very low for Class C, but still quite impressive for Class D. Its top speed is 112 mph (180 km/h), and its curb weight of 3181 lbs (1443 kg) is made up of a naturally aspirated V 6 cylinder petrol engine.Īccording to Edmunds, the 1991 Pontiac Firebird is worth $1,717 to $10,764. The off-the-line hit of the high stall was working to increase 60-foot times, but excessive slippage was shaving off the gains before they reached their peak. Despite being at 4,800, the power curve was still a curve, rather than a flat line, and at the time we were producing 228 horsepower. Our converter was faulty because the engine reached just shy of 4,000 rpm before starting to bog because the wheel speed was too low. We installed a set of Comp’s Pro Magnum roller rockers with a ratio of 1.5:1 while at it. With Comp Cams’ new beehive springs, lift capacity has been increased and valve control has been improved. With a 150,000-mile engine running hypereutectic pistons and nitrous, guessing may be pointless.Īfter 157,000 miles, it was easy to understand why it was obvious that valve float was imminent. When the engine reached 4,300 rpm, it appeared to go flat it didn’t drop off but hung on around 224 horsepower, remaining flat until the engine reached 4,300 rpm. As part of this project, we also installed a ported upper plenum from as well as an Edelbrock manifold base. Glad was not pleased that the car jumped off the line but was still having difficulty reaching the traps by half track. ![]() The Firebird reached speeds of more than three tenths of a second faster from our baseline of 15.3 seconds at 91.23 mph to 14.66 seconds at 92.82 mph. It was one of the first vehicles to emerge from Detroit since the early 1970s, and it appeared to be a worthy candidate for the term muscle car. The Tuned Port 350 F-body was regarded as one of the most desirable cars of its era. With its impressive performance and classic styling, the 1991 Pontiac Firebird Formula is a great option for those looking for a classic American muscle car. The Firebird Formula also features a host of modern features such as a limited-slip differential, power steering, and power brakes. This engine is mated to either a four-speed automatic or five-speed manual transmission, allowing it to reach a top speed of 140 mph. The car is powered by a 5.0-liter V8 engine that produces up to 225 horsepower and 300 lb-ft of torque. It features a powerful engine that has been designed to deliver a thrilling driving experience. The 1991 Pontiac Firebird Formula is a classic American muscle car that has been admired by car enthusiasts for decades. ![]()
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