Autometer 5 Sport-Comp 160 Mp

OVERVIEW

When you are pushing the limits of your air-cooled Volkswagen, the last thing you want is a bouncy, inaccurate needle on an aging mechanical speedometer. The AutoMeter 5-Inch Sport-Comp 160 MPH Programmable Electronic Speedometer is the ultimate solution for enthusiasts who demand precision and a classic racing aesthetic. Featuring the iconic Sport-Comp styling with its signature black face, bold white numerals, and high-visibility fluorescent red needle, this gauge doesn''t just tell you how fast you are goingit transforms your dashboard into a professional-grade cockpit. Whether you are building a high-performance street Beetle, a dual-port Ghia, or a high-speed sand rail, this 160 MPH sweep provides the headroom you need for those high-velocity runs where the stock 80 or 90 MPH unit simply falls short.

The beauty of this unit lies in its advanced electronic programmable technology. Traditional mechanical cables are prone to snapping, kinking, and causing "needle flutter" that makes reading your speed a guessing game. The ATM3989 eliminates these headaches by utilizing a rock-solid electronic signal that can be calibrated to virtually any tire size or gear ratio with the simple push of a button. This is a game-changer for the VW community, where changing from stock tires to oversized mud-terrains on a Baja Bug or low-profile rubber on a slammed Type 1 usually renders a stock speedometer useless. With a built-in resettable trip odometer and compatibility with most factory and aftermarket speed sensors, this gauge is the perfect blend of modern reliability and timeless competition style.

FITMENT

While this is a universal 5-inch in-dash gauge, it is a favorite for custom air-cooled applications. It is commonly installed in the following:

• Volkswagen Beetle (Standard & Super): Ideal for custom fiberglass or modified steel dashes.
• Volkswagen Karmann Ghia: A sleek upgrade for high-performance street builds.
• Volkswagen Bus (Type 2 / Transporter): Perfect for Westfalias with modern engine swaps (Subaru or EcoTec) needing accurate speed data.
• Volkswagen Type 3 (Squareback, Fastback, Notchback): Fits well in custom instrument clusters.
• Meyers Manx & Dune Buggies: The 5-inch diameter fits most standard buggy dash cutouts perfectly.
• Sand Rails & Off-Road Cars: Built to withstand the vibrations and rigors of the dunes.
• Custom Kit Cars: Including Bradley GT, Sterling, and Porsche 356 replicas.

SPECS

• Brand: AutoMeter
• Series: Sport-Comp
• Product Number: ATM3989
• Gauge Diameter: 5 Inches (127mm)
• Speed Range: 0 - 160 MPH
• Gauge Type: Electronic Programmable
• Display: Analog Needle with Digital Odometer/Trip Meter
• Face Color: Black
• Bezel Color: Silver/Aluminum
• Needle Color: Fluorescent Red
• Lighting: Incandescent (includes green and red bulb covers)
• Calibration: Push-button, 2-mile drive calibration
• Input Signal: Compatible with Hall Effect, Sine Wave, and Magnetic sensors
• Voltage: 12V DC operation

PRO TIPS FROM THE SHOP

1. Master the Calibration Drive

The biggest advantage of the AutoMeter Electronic Speedometer is the "Easy-Cal" feature, but you must do it right to ensure accuracy. Find a straight stretch of road that has clearly marked mile markers (most interstates are perfect for this). When you enter calibration mode, you must drive exactly two miles and then stop. Don''t worry about your speed during the drivethe gauge is counting pulses, not timing you. Once you hit the two-mile mark and save the setting, your speedometer will be perfectly calibrated to your specific tire diameter and transaxle gearing, providing accuracy that no mechanical VW cable could ever match.

2. Solving the Signal Challenge in Air-Cooled VWs

Since vintage Volkswagens originally used a mechanical cable driven by the front driver''s side spindle, you won''t have a factory electronic signal ready to plug in. For a clean installation, we highly recommend using an AutoMeter 5291 or 5292 Speed Sensor. If you are running a modern transmission swap or want to avoid wires on your suspension, consider a GPS Speedometer Interface. This allows the gauge to receive speed data via satellite, eliminating the need for any mechanical connection to the wheels or transaxle, which is especially useful for sand rails and extreme off-road buggies.

3. Clean Power and Grounding is Critical

Electronic gauges are sensitive to "dirty" electrical noise, which is common in older VW charging systems. To prevent the needle from jumping or the odometer from resetting unexpectedly, always ensure the gauge has a dedicated, clean ground directly to the chassis or the battery. Avoid daisy-chaining the ground wire with high-draw components like your wipers or heater blower. If you are still running a generator instead of a modern alternator, we recommend checking your voltage regulator to ensure a steady 13.5v to 14.2v output, as inconsistent voltage can cause electronic gauges to behave erratically.