AutoMeter - Sport-Comp II 2-1/16" Vac / Boost Gauge - 3301

This mechanical vacuum/boost gauge from AutoMeter’s Sport-Comp II line is designed for forced induction or high-performance naturally aspirated engine applications where monitoring both vacuum and boost is critical. The gauge reads from 30 in Hg of vacuum (–30 inHg) up to 20 psi of positive boost pressure. It uses a patented high-precision Bourdon‐tube meter movement for excellent accuracy and durability, requiring only a 1/8″ NPT pressure connection and no electrical hookup for primary operation.

The dial features a clear, performance-oriented layout: black face, white numerals and markings, red pointer, and traditional incandescent “around-the-dial” lighting (with bulb covers or LED options available separately). The kit includes the necessary fittings: nylon tubing, compression fittings, mounting hardware and instructions for installation.

Key Features

• Measures vacuum up to 30 inHg and boost from 0 to 20 psi (check variant label to confirm exact range)

• Mechanical operation: stable, reliable, no electrical signal dependency

• 1/8″ NPT pressure connection (fittings included) for straightforward plumbing

• Performance styling: red pointer, high‐contrast face

• Includes mounting hardware, tubing and fittings in kit form

Compatibility & Installation Notes

• Mounts in a 2-1/16″ (52 mm) gauge cut-out (verify panel size)

• Plumbing must be installed to engine intake vacuum/boost line (use proper fittings and routing)

• Because it’s mechanical, ensure the tubing is securely installed and free from kinks or leaks to maintain accuracy

• Confirm that the vacuum/boost range matches your engine’s expected operating envelope—this one is designed for moderate boost (20 psi); higher boost engines may require a different model

• The gauge lighting connection needs power and ground (for the illumination bulb), though the pressure reading is mechanical

Warranty & Support

Final sale item. Not returnable. Before installing, verify the exact model number and range.