Katech announced a new direct injection fuel-pump that allows LT1/LT4 engines to achieve more than 2,000 horsepower. Developed with Xtreme-DI, the system adds a secondary, direct injection fuel pump to the original factory OEM fuel system.
The Katech Xtreme-DI System fully integrates with the factory engine computer, providing all degrees of freedom for controlling fueling, regarding minimum injection durations, pressure levels, idle stability, and so on.
“The Katech Xtreme-DI Fuel System is a new approach to providing fuel to a direct injected engine,” said Uwe Ostmann, founder of Xtreme-DI. “It’s not like what other people have tried to do, such as simply replacing one pump with a bigger pump. We are literally adding another fuel pump, which doubles the flow. We can also triple or quadruple the flow as well. The system is extremely modular, which gives us a lot of options to pursue better performance and higher horsepower.”
The first Xtreme-DI Fuel System was installed on a C7 Z06 Corvette, which put out 900 ft. Lbs. of torque at 3,000 rpm on the engine dyno, and 965 horsepower. The horsepower on this installation was limited by the airflow available from the engine supercharger.
According to Katech, when the system is combined with twin turbochargers, or a solution providing similar airflow, the current version is capable of 1,200 horsepower at the wheels, and 1,400 horsepower at the flywheel with E85 fuel.
Katech is in the process of validating these numbers with a system on a twin-turbo LT engine.
“Our system provides exceptional fuel flow at all engine RPMs,” said Chris Meszaros, Director of Engineering for Katech. “What you’re really looking for in terms of engine power output for real-world applications is an area under the torque curve. The more area you have under the curve, the more usable power you have. Provided you can supply the necessary airflow; our system enables big torque gains across the entire engine operating range.”
Xtreme-DI developed the secondary pump and pump control electronics while Katech integrated the secondary pump onto the engine utilizing the front engine belt drive, provided the required engine ECU calibration, and validated the system both on the engine and chassis dyno.
“Our system is based on OEM approved solutions that are validated for production run times – 300,000 miles,” Ostmann said. “And we are not modifying the core of it. We add a second pump that was built to the same (OEM) standards. So we believe it is more durable than other solutions on the market.”
The Katech Xtreme-DI Fuel System is available now at Katech.