Trask Injected Bagger Turbo System

If you're a Harley performance enthusiast, we're sure you know that there are several ways to make power-several ways to skin a cat, so to speak. For instance, some guys prefer lots of cubic inches while others are more comfortable with a high-revving small engine. Still others like pulling up to the boy's club with a power adder like a turbo. Nick Trask, owner of Trask Performance in Phoenix, Arizona, is just one of those guys-a turbo type of guy, that is. And so is Jesse James of West Coast Choppers in Southern California. Since Jesse was looking for a power boost for his '07 96-cubic inch Street Glide without having to disassemble the entire engine, he contacted Nick to see how development of his new Bagger Turbo System was going. If you've been following HOT BIKE, you probably know that Nick builds some great turbo systems for the V-Rod and was developing a similar line of turbos for Harley Baggers. Fortunately, Nick was putting some finishing touches on his new Bagger Turbo System and asked us to follow along as his crew performed the install on Jesse's bike.

Trask's new Injected Bagger Turbo System is intended for '02 and later Delphi-equipped Twin Cam baggers. It is designed to give heavily loaded 88- and 96-cubic inch engines a smooth, streetable power boost on pump gas that will flatten out steep mountain grades-make passing 18-wheelers a breeze-and turn riding two-up and heavily loaded into a pleasurable experience. When installed and tuned properly, you can expect the Trask Turbo Bagger System to produce between 100-130 horsepower and 100-130 lb-ft of torque with 8 pounds of boost and 91-octane pump gas. Fortunately for Twin Cam owners, unlike Evolution crankcases, Twin Cam cases are stout and can handle that level of power.

The Trask Injected Bagger Turbo System comes as a complete package, including a Patent Pending precision billet plenum and snap-in venturi for unobstructed airflow, a modified Garrett GT turbo, ceramic- and chrome-coated pipes, high-flow injectors, performance Barnett clutch spring and assembly hardware. Also included are an instructional CD and EFI fuel maps. The turbo kit is designed to run on pump gas and use stock TC camshafts, throttle body and compression ratio. The only additional item you need is a Harley-Davidson SE Race Tuner or Dynojet Power Commander so the fuel injection's ECM can be recalibrated with the proper fuel curve.

Before installing the Injected Bagger Turbo System, Trask Performance dynoed Jesse's 96-cubic inch Twin Cam engine. The stock engine dynoed at 71.1 horsepower and 85.9 lb-ft of torque. After the Trask turbo installation, the engine produced 112.6 horsepower and 117.0 lb-ft of torque. That represents a 58-percent horsepower and 36-percent torque increase with stock compression, 91-octane pump gas and without requiring any internal engine modifications. If you have a heavy bagger and are looking to increase performance, turbocharging is one of the most cost effective ways for producing smooth, rideable horsepower. And you can effectively ride all day without getting on the boost, so fuel economy and reliability are not compromised. Jesse will have smooth sailing up the PCH while rousting the gulls and pelicans from their perches on buoys and piers with the steady, rhythmic rumble of 112 hp from his Trask turbo-equipped bagger.