Whipple Superchargers WK-2550-38 W235RF Gen 5 3.8L Supercharger Kit (2020+ 5.2L Shelby GT500)

If your craving more power from your Shelby GT500, Whipple has the answer. The all new bolt-on supercharger system is the first and only 50-state legal supercharger upgrade available today. While the GT500 pumps out an astouding 760HP, the small supercharger, when coupled with the severely undersized intercooler and inlet system lacks ability to safely make more power on 91/93 octane. The massive 3.8L Gen 5 twin-screw supercharger is 43% larger in displacement and features the patented dual core, dual pass intercooler for incredible, uncomparable cooling capacity.

Each system features the billet, 132mm throttle body, Whipples unique 145mm cold air intake system with the oversized air filter for all the air your engine could use. While the air intake system is industry leading, the real magic comes from the patented intercooler system. The discharged air goes through each intercooler two times, giving the system overall double the capacity of the stock IC core. Even better, the Whipple dual cores feature dual 3/4" ID and dual 3/4" outlet for the intercooler water, allowing nearly twice the water flow of the stock IC core. Did we mention, the supercharger lid is made of 6061-T6 billet for added strength while clearing the factory strut tower brace and hood vents.

The industry leading, record breaking 3.8L has dominated in every race class its been legal, destroying the competitions superchargers. With over 2000HP capacity, the GT500 3.8L comfortably makes near 1000HP on 93 octane fuel with an 100% stock engine and exhaust with only 15psi of boost.

The Whipple upgrade system includes a HP Tuner RDT flash tool for easy calibration delivery and enhanced data logging capacity, along with the 4 credits required for flashing. Each Whipple system comes with new motor mount brackets to fit under the stock hood, billet idler plate and idler pulleys, intercooler vent system, SC belt and all the necessary hardware for an easy installation.

CARB EO #D-231-84

Whipple Superchargers WK-2550-38 W235RF Gen 5 3.8L Supercharger Kit (2020+ 5.2L Shelby GT500)

What's Included:
3.8L Head Unit
3.8L Intercooler and Lid Setup

Supercharger Pulley
Belt Drive System
Heat Exchanger
Cold Air Intake
132mm Throttle Body
Heat Exchanger
Intercooler Reservoir
Intercooler pump and all hoses for the intercooler system
Engine Lowering Brackets (Required to clear the factory hood)
Whipple Tomahawk Flash Tool with Whipple Calibration
All Necessary Items to Install Supercharger Kit


With the new direct injection setup on the 2018 Mustang GT, Whipple Superchargers had their work cut out for them on making a blower that was incredibly efficient while also fitting within the application. This is when the Gen 5 3.0L that we have come to love was born. The 2018s were making insane power, even on mostly stock setups (we made 755rwhp in our 2018 Mustang GT with 93 octane). Whipple knew they needed to adapt the Gen 5 rotor technology into other platforms… SO THEY DID. First releasing the Gen 5 3.0L for the 2011-2017 Mustang GTs and then the Cobra and GT500 setups after that.

And now, it’s time for Whipple to step up the game even more with their new Gen 5 3.8L setup for the 2011-2021 Mustang GT / Boss 302 / Shelby GT350!

The Gen 5 3.8L Whipple Supercharger will carry similar features to the 3.0L Whipple. It has all new bearings, gears, rotors and housing that allow the new supercharger to spin faster, longer and safer while producing more power than any other positive displacement supercharger ever built.

Compared to it’s little sibling, the 3.8L supercharger will have an improved rotor profile, increased volume, improved sealing and increased efficiency. The 3.8L will also feature a new inlet design that is 2 pieces, allowing easier access for the rear bolts, your spark plugs and other items that previous models made difficult to access.

In testing, the 3.8L has a roughly 6% increase in isentropic efficiency compared to the 3.0L.

Uh, wtf does that mean? Isentropic efficiency of a compressor is the ratio of actual work vs the work at isentropic conditions. An Isentropic process is basically an ideal thermodynamics process. Isentropic efficiency in laymen's terms would be a comparison of the output in actual conditions vs the ‘ideal’ conditions. /thermogenics lesson)

SIDE-BY-SIDE
When looking at side-by-side photos of the housings and rotors of both the 3.0L and 3.8L Whipple superchargers, you can see that the designs are similar except for the fact that the 3.8L is much larger. Also, compared to the larger volume 4.0L, the 3.8L is slightly taller however it is roughly 60mm shorter (just over 2 inches), giving it some serious girth while not taking out your firewall in the process. Who doesn’t love some girth?

APPLICATIONS??
So who is it for?! Short answer, almost everyone in time. The first kits being produced will be for the 2007-2014 Shelby GT500s to replace the 4.0L and 4.5L kits. The expected ETA on their release is end of May/beginning of June. This supercharger will fit under the stock hood with the use of an engine lowering kit (similar to that of the 4.0L and 4.5L currently). Whipple has also mentioned that the 3.8L will be more efficient and powerful than the current 4.0L supercharger (size doesn’t always matter, guys!).

After that? Whipple will have 3.8L supercharger kits for the 2011-2020 5.0L Coyote platform, including the F150! The Coyote Mustang kits will be inverted with a LARGE intercooler for increased cooling. The 2020 Shelby GT500 kits will be out at the same time. (Maybe we will have our car by then! LOL)

Other models in the lineup to be offered including the Hemi 5.7L-6.4L, the GM LS and LT models and GM Big Blocks.