What started out as an innocent purchase of a 2017 Dodge Challenger T/A quickly became an evil obsession for more power. While the stock Challenger was fun, the 370 crank-horsepower was just not enough. A trip to the dyno showed 330 horsepower to the wheels and that quickly sent us down the road of finding more, reliable power. The goal was to reach 500 rear-wheel horsepower, a sizable gain in ponies.
The dyno is one thing but it really is just a number, what really matters is how the Challenger performs. To find out what the car was capable of, we visited our local drag strip. After four runs down the quarter-mile, our best time was a 13.80, not bad, but how would the Challenger do autocrossing? It’s impossible to compare autocross times as at each event the course changes. Instead of run times, we used our finish in overall Professional Autocross, or PAX. PAX is how the SCCA scores different cars together from a variety of classes by using a set multiplier. This system was used instead of class finishing order as the Challenger will be bumped to a new class after all of the modifications have been completed. Out of 52 competitors, we finished 36th, which is less than ideal.
This Dodge Challenger is going to be dodging cones on the autocross course, and screaming past them at the drag strip. We wanted to add as much useable horsepower as possible to lower its times on both tracks.
We decided that based on our application that if we wanted to reach our horsepower goal forced induction was the way to go. A centrifugal supercharger made the most sense based on how it produces power. These superchargers provide instant horsepower with no lag. So, it makes the power curve more linear and that will benefit us on the autocross course and drag strip. It will also make driving the car on the street a lot of fun.
A V-3 Si centrifugal supercharger from Vortech made the most sense for our goals. Vortech’s Dodge Challenger Tuner Kit was the best fit for our build since it could provide us with the horsepower and reliability we were looking for. The Tuner Kit does not include fuel injectors, ECU programming, or a fuel pump booster. This allows customers to fine-tune the set-up based on their application and goals.
The Vortech Tuner Kit makes it easy for the end user to create their own perfect package to add horsepower.
The V-3 Si supercharger is a stout unit that can support up to 775 horsepower thanks to the 1,150 CFM of air it can move. Vortech states…
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