When Mopar introduced the newest Challenger Drag Pak back at the 2019 SEMA Show in Las Vegas, the biggest question that went unanswered related to the size and type of supercharger that would top the 354-cubic inch Hemi engine.


We asked Mopar representatives at SEMA which supercharger would be used in 2020 and they explained to us that their team was still testing a few different superchargers to see which yielded the best results. This was likely one of the reasons that the Drag Pak on display in Vegas had padlocks holding the hood shut, as whatever was under that hood may not have become a production reality.

Back then, the folks from Mopar wouldn’t offer any insight into which superchargers were being considered, but our connections inside of the company confirmed that units from Whipple, Magnuson and IHI were being considered. We expected that the IHI would be chosen, allowing the Drag Pak to utilize a similar supercharger to the one featured on the 1,000-horsepower Hellephant crate engine. Our contacts stated that in early testing, the IHI was showing strong results, but there has still been no official word from FCA, Dodge or Mopar.


However, the National Muscle Car Association has posted the rules for the 2020 Factory Super Cars class and the new Challenger Drag Pak is listed as having a 354 cubic inch Hemi and a 3.0-liter Whipple supercharger. The NMCA rule sheet does not list the official horsepower for the 2020 Challenger Drag Pak yet, nor does it list the upper pulley size, but the lower pulley size is 7.950, which is the same as the previous years. For those wondering, the previous Mopar Challenger Drag Pak relied on a 2.9-liter Whipple supercharger with a 3-inch upper pulley.


We also do not yet know the base weight for the 2020 Drag Pak, but we expect that it will be similar to the current base weight of 3,500 pounds.


The latest competitors for the upcoming season are the 2019 Camaro COPO 350 and the 2019 Mustang Cobra Jet 327. The Camaro has a 350-cubic inch engine, a 2.65-liter Magnuson supercharger, a base weight of 3,525 pounds, a 3.35-inch upper pulley and an 8-inch lower pulley. The Mustang has a 327-cubic inch engine, a 3.0-liter Whipple supercharger, a base weight of 3,575 pounds, a 3.75-inch upper pulley and an 8-inch lower pulley.


Again, this information is not official from Mopar, but the charts here showing the details are from the official rules of the NMCA for the 2020 season.

A big thanks to Rich S. for the heads-up on this information!