Whipple Superchargers WSC-175FFB Gen 4 2.9L W175FF Supercharger Assembly

Whipple is always pursuing the latest & greatest technology and making any innovation they can to produce the most efficient supercharger on the market. The Gen 4 2.9L supercharger has been the most popular head unit for the Cobras, GT500s and Coyotes. For this reason, Whipple has focused on improving the rotor & housing design of the 2.9L.

Whipple introduced the Gen 3 rotor upgrade for the 2.9L in late 2017 and it boasted a 30-150hp/tq increase at the same boost level compared to its predecessor. It’s been performing like a beast but Whipple knew they could get more out of the 2.9L so earlier this year they introduced the option to upgrade to the Gen 4 rotor & housing. The Gen 4 upgrade is great for those customers wanting a little extra hp boost but without going full Crusher or crazy small pulley setup. The step up from the Gen 3 was not as big as the 2-3 step, but still makes for a nice little gain. Compared to the Gen 3, the Gen 4 2.9L has a 4% flow increase and will make around 1-1.5 more psi at the same pulley size.

Looking to upgrade your Gen 1, 3 or 3 2.9L Supercharger to the new Gen 4 unit? Then this is the part number you'll want to order.

- Adds up to 30-150 hp/tq at the same boost level
- 10-80*F cooler temps
- New Whipple Crusher SC Housing for increased volumetric efficiency
- Simple bolt-on upgrade to existing Gen 1, 2 and 3 2.9L/W175AXFF superchargers

Current available applications:
2003-2004 SVT Cobra
2007-2014 Shelby GT500
2011-2017 Mustang GT & F150
2010-2014 6.2L Raptor/F150
2006-2018 Dodge/Chrysler/Jeep

Whipple Superchargers, known for years of innovation, have now developed the new Gen 3 Whipple 2.9L supercharger that features both updated rotor design and rotor housing to unleash even more power from your engine. The Gen 4 works with nearly all 2.9L Gen 1, 2 and 3 applications and is a simple upper half swap. No tuning required, just more power by increased supercharger efficiency.

Gen 4 features all new 3/5 rotors that feature a new updated rotor profile and new advanced manufacturing methods, allowing more accurate and tighter tolerances along with increased efficiency. Each Gen 3 rotor also features a later generation robotically sprayed conformal rotor coating, allowing the rotor clearance to conform to the operating conditions and application. The Gen 4 also features upgraded double lip PTFE rotor seals for higher RPM, higher temp and higher pressure ratios.

The Gen 4 also features a new rotor housing with the new angled support ribs for a more aggressive appearance, along with revised port shape for increased rotor filling and decreased turbulence, resulting in increased overall supercharger efficiency. What does all this mean? More power, more power, more power while maintaining the same boost levels.

During extensive testing on multiple applications, both Whipple and 3rd party testing found gains from 30RWHP up to 150RWHP depending on blower speed and engine specifications. Standard pump gas applications can easily make another 30RWHP with no other changes. Because boost maintains, tuning is not required. Just bolt on and unleash the power of your stock application.

Each swap kit comes with all the necessary parts/hardware to swap the Gen 2 or 3 for the Gen 4 head unit. No cutting or grinding required.