Carbureted & EFI For Increasing Performance

High-Performance EFI Auto Repair in Bismarck

The expert mechanics at Automotive Unlimited know switching to fuel injection often improves the fuel efficiency and performance of older carbureted engines. In newer cars, replacing a single fuel injector with a multi-port fuel injector creates an intense, even flow of fuel on each cylinder when your engine needs it most. Feed your engine the fuel it needs with fuel pumps, fuel filters, superchargers, and turbochargers. Break out of gasoline only feed engines by adding a nitrous kit or cooling methanol injection kit.

To ensure the correct air to fuel ratio, Automotive Unlimited can add a new stock-height replacement intake manifold, cold air intake, and fuel rails. Never run rich or lean with a hood scoop, high-performance air filter, and new O2 sensor. Call Automotive Unlimited and talk to us about increasing your car's performance. When you want performance you need the auto repair experts at Automotive Unlimited located at 3630 Saratoga Ave
Unit A.

If you're ready to take your car or truck's fuel injection to the next level, Automotive Unlimited is ready with injectors, manifolds, fuel rails, sensors, and complete performance EFI conversion kits. From BMW to Audi to Corvette, Automotive Unlimited has you covered.

Tuning Old School Carburetors For True Muscle

Your muscle car may be starving for air! Bring it to Automotive Unlimited and find out. Because of operating losses in the intake runner and cylinder with newer unleaded fuels that do not fully vaporize in the combustion chamber, cars tuned to the manufacturer's specifications can run lean. Automotive Unlimited can diagnose if you are actually running leaner than the manufacturer suggested ratio of 14.7:1 air to fuel mixture. Bring your classic car to Automotive Unlimited at 3630 Saratoga Ave
Unit A to tune the perfect air to fuel mixture and correct ignition spark for maximum power.

701-258-3535!