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Tim (our lead tech) wanted to push the red-line of his pump-gas, hydraulic-roller naturally-aspirated LS to 8,500 rpm and get more horsepower without losing low-end torque. He also wanted this to be a bolt-on project. Like a lot of racers, this 408 cubic inch build started out powering his daily driver, a 2009 GMC Canyon.  As time went on, he continued to invest into new go-fast parts and his truck slowly morphed from a daily driver that occasionally raced, into a race vehicle that could still be driven on the street.  After competing in Drag Week 2018, he concluded that some...

Big power LS engines are a key part of our business here at Borowski Race Engines, Inc.  The engines we build are sold worldwide and installed into all forms vehicles for road and track.  In addition, these engines are used in such diverse applications as fan boats and dune buggies.  We are power-adder agnostic believing they all can fill specific niches.  Our LS builds use twin screw and centrifugal superchargers, turbos, nitrous and on occasion, combinations of power adders.  The horsepower capability of some LS engines we ship exceeds the 2,500 hp physical limitation of our engine dyno.  This broad palette of...

If you are interested in turbos, you want to go fast.  Being able to tune a turbo can help you go faster by letting you quickly and easily change the turbo’s behavior to best suit conditions.  At Borowski Race Engines, Inc., all our customers want to go fast so we wanted to learn more about Bullseye Power LLC’s NLX tuneable turbos.  This blog will share with you what we learned. First, a little background.  A turbo’s performance is defined by what is referred to as its compressor map.  The outer limits of performance are largely set by the conditions at which the...