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Written by Patrick Rall
Alex Palmeri from the Legit Street Cars YouTube channel has a 2001 Pontiac Firebird Trans Am WS6 with a boosted V8 that he built and tuned himself. In one of his videos, took the car to a dyno shop to see what kind of power it sends to the wheels and the results were mighty impressive. 850 rear wheel horsepower impressive.Palmeri"s Dream CarWhen this YouTuber was in high school, he dreamed of owning a 4th gen Firebird. When he entered technical school after high school, his motivating factor to do well, graduate and get a job was to be able to buy an LS1-powered Trans Am. So, naturally, upon getting his first job at a Mercedes-Benz dealership, he ran out and bought his 2001 Pontiac Firebird.When the car still had temporary tags, Palmeri was out street racing his Firebird. As a result, over the years, it has been transformed from a run-of-the-mill 4th gen Trans Am to a boosted beast.The host explains all of this to us as he is driving to a dyno shop to see what kind of power he is making. He explains that his Firebird ran 9.70s with a trap speed of 141 miles per hour, so we know that he is making some serious power. He guesses 865 and the dyno operator guesses 850.Boosted ‘Bird on the DynoBefore getting into the dyno runs, the YouTuber gives us a rundown of his builds. This Firebird is powered by an LS-based 370-cubic inch V8 with "stock" cylinder heads that have been ported and polished. The engine has an LS6 intake and throttle body, with a custom camshaft and a monster 88-millimeter turbocharger delivering 20 pounds of boost. This is all on a 93-octane pump gas tune running a whole lot of methanol.On the first dyno blast, the Trans Am makes 780 rear wheel horsepower at 19 pounds of boost. On the second run, with the boost cranked up to 20 psi, the output rises to 810 rear wheel horsepower.The crew tinkers with the tune a bit, adding some timing and making a third run and on this one, the dyno measures horsepower and torque. The mild-looking Firebird makes 831 horsepower and 889 lb-ft of torque at the rear wheels and after one more timing adjustment the horsepower figure jumps to 853. Due to some wiring issues, the torque number was absent on most of the runs, but with 853 horsepower, this is one wicked Pontiac street machine.Join the LS1Tech forums now!Tags: 4th gen firebird, Dyno, pontiac firebird, Trans Am, Video
Date written: April 6, 2018
More of this article on the LS1 Tech website
ID: 11428
Alex Palmeri from the Legit Street Cars YouTube channel has a 2001 Pontiac Firebird Trans Am WS6 with a boosted V8 that he built and tuned himself. In one of his videos, took the car to a dyno shop to see what kind of power it sends to the wheels and the results were mighty impressive. 850 rear wheel horsepower impressive.Palmeri"s Dream CarWhen this YouTuber was in high school, he dreamed of owning a 4th gen Firebird. When he entered technical school after high school, his motivating factor to do well, graduate and get a job was to be able to buy an LS1-powered Trans Am. So, naturally, upon getting his first job at a Mercedes-Benz dealership, he ran out and bought his 2001 Pontiac Firebird.When the car still had temporary tags, Palmeri was out street racing his Firebird. As a result, over the years, it has been transformed from a run-of-the-mill 4th gen Trans Am to a boosted beast.The host explains all of this to us as he is driving to a dyno shop to see what kind of power he is making. He explains that his Firebird ran 9.70s with a trap speed of 141 miles per hour, so we know that he is making some serious power. He guesses 865 and the dyno operator guesses 850.Boosted ‘Bird on the DynoBefore getting into the dyno runs, the YouTuber gives us a rundown of his builds. This Firebird is powered by an LS-based 370-cubic inch V8 with "stock" cylinder heads that have been ported and polished. The engine has an LS6 intake and throttle body, with a custom camshaft and a monster 88-millimeter turbocharger delivering 20 pounds of boost. This is all on a 93-octane pump gas tune running a whole lot of methanol.On the first dyno blast, the Trans Am makes 780 rear wheel horsepower at 19 pounds of boost. On the second run, with the boost cranked up to 20 psi, the output rises to 810 rear wheel horsepower.The crew tinkers with the tune a bit, adding some timing and making a third run and on this one, the dyno measures horsepower and torque. The mild-looking Firebird makes 831 horsepower and 889 lb-ft of torque at the rear wheels and after one more timing adjustment the horsepower figure jumps to 853. Due to some wiring issues, the torque number was absent on most of the runs, but with 853 horsepower, this is one wicked Pontiac street machine.Join the LS1Tech forums now!Tags: 4th gen firebird, Dyno, pontiac firebird, Trans Am, Video
Date written: April 6, 2018
More of this article on the LS1 Tech website
ID: 11428
