The SGI-8E Tachometer Interface Unit is designed to allow a factory tachometer to function accurately after performing an engine swap to an engine with a different number of cylinders or tacho signal. If you are swapping out a V-6 for a V-8 and you need to recalibrate the tacho signal from the V-8 to make it read accurately on the factory V-6 tachometer, the SGI-8 will do the job. With adjustability up to 16x, the SGI-8 is capable of recalibrating tachometer signals for nearly any engine swap combination. All set-up, calibration and diagnostic functions are handled with the use of a built-in 3-digit display and integrated push-button switches.
Product not compatible with '86-91 VW Vanagon's and other similar models
Unit measures 4" x 2" x 1" and is designed to be mounted inside a vehicle.