Speed Engineering and Dyno

Auto Repair
Hours: Speed Engineering and Dyno in Decatur, Tennessee, is a trusted automotive shop known for its quality work and attention to detail. Owned by Jeff Nance, the shop has a reputation for delivering excellent performance tuning and engine enhancements. Jeff is a skilled tuner and racer who personally handles each project, ensuring high standards and reliable results. Customers appreciate his thorough approach, often traveling from far away to have their vehicles worked on, thanks to his honesty and commitment to doing the job right. The shop specializes in maximizing engine power through precise tuning, carb adjustments, and timing, often uncovering hidden issues that need fixing. For example, Jeff has helped customers find significant power gains—sometimes adding over 30 horsepower and 27 pound-feet of torque—which translate into noticeable improvements in drivability and performance. Customers also value that Jeff's work saves money by avoiding unnecessary parts and focusing only on what’s needed. Many clients have brought various vehicles, including Camaros, Hondas, and classic cars, and left highly satisfied with the results. Jeff’s expertise with LS engines and turbocharged setups is highly praised, and his support after the work is also appreciated. Overall, Speed Engineering and Dyno is known for honest, fast, and high-quality service that consistently meets or exceeds customer expectations.

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1. Decatur, Tennessee