Hydroforming has many advantages over original muscle car chassis manufacturing techniques, as well as “modern” replacement subframes constructed from standard steel tubing and multi-piece welded designs. The original Camaro/Firebird/Nova subframe rails were designed in the mid-1960’s, using then state-of-the-art technology. Given the tire, suspension and manufacturing technology for the time, they were contemporary for their day; however, they are unable to match the performance of a current automotive chassis. A stock rail is composed of two separate pieces of stamped steel, which are stitch welded together. Hydroforming permits each rail to be made from single piece of steel that is ultimately stronger, lighter, and more rigid than the OEM design. Considerable weight savings are achieved by the use of thinner steel and through the elimination of the weld flanges, yet stiffness is greatly increased due to the exclusion of the intermittent stitch welds. Welded, multi-piece replacement subframes suffer from many of the same issues as the original and often lack adequate strength and stiffness due to limitations presented by their fabricated construction. Hydroformed rails are also far more precise than the original rails or multi-piece replacements. Since the same dies are always used for each set of rails, they are always consistent unlike jig-welded components. When dealing with suspensions, a mere sixteenth of an inch can mean a substantial difference when it comes to precise final alignment settings. In severe-use or high-performance applications, such as autocross or track day events, precision alignment becomes even more crucial. The framerail is set in place for hydroforming NEWS & EVENTS NEWS & EVENTS NEWS & EVENTS WWW.DETROITSPEED.COM WWW.DETROITSPEED.COM 17.0 17.0 7 7