Raby's Aircooled Technology

RAT DTM Serpentine Drive system.

A lot goes into creating an engine. Often overlooked is the time that goes into making fixtures for procedures so every part or modification is performed with exactness. Here’s an example of fixtures designed and CNC machined in house at Raby Machine Works that hold factory rocker arms so they can be CNC machined for the clearance required to utilize Porsche 911 valve adjusters.