When considering exhaust speed or backpressure, it is extremely important to have a properly modeled exhaust system. Too much backpressure (a more restrictive exhaust) can be detrimental to top end power and harm the overall power curve, while the opposite (not enough backpressure) can cause an excessive peak in the power curve, hurting low-end torque and overall performance. This is a fairly basic principal that is often overlooked, so beyond spending big dollars on your powerplant, be sure to carefully choose the proper exhaust system size and design for you ride. Let's delve into the Burns Stainless components used on Getaway, the reasons why, and the exhaust construction process set forth by Carroll's Rod and Racecraft. Pictured is the four-into-one merge collector, also made from 304 stainless and generally the most technologically advanced part of the exhaust system. The merge collector design contains four tubes into one; there is then a short section known as the transition and then the tail-ring. In extreme race applications, where open headers are run, this becomes a tunable part of the system.Pictured is the four-into-one merge collector, also made from 304 stainless and generally Different sized transitions can change torque and power bands. For example, a longer transition or megaphone can be used for maximum peak horsepower and broadened torque curve, while a shorter can be used to achieve the reverse. When utilizing a complete exhaust the effect is lessened. Notice the smoothness of all transitions within the collector, thus creating a balanced flow, while increasing horsepower.Different sized transitions can change torque and power bands. For example, a longer trans Next up, Bob will use the SS V-band clamps pictured... ...along with the SS transitions from 3.5 inches round to 3.5 inches oval tubing. The purpose of using the oval tubing is primarily for ground clearance—with the added benefit of looking great. Oval tubing does not provide anything as far as performance, but if sized properly it will not hurt either. If a larger oval is used above the required size of the standard round tube, it is a break even in performance at that point....along with the SS transitions from 3.5 inches round to 3.5 inches oval tubing. The purp For a better view, here is the merge collector, V-band clamp and round to oval transition as an assembly.For a better view, here is the merge collector, V-band clamp and round to oval transition We can't wait to hear this baby purr! Shown above are the 3.5-inch mandrel bent SS oval tubing sections available in many different angles.Shown above are the 3.5-inch mandrel bent SS oval tubing sections available in many differ Bob will incorporate an H-pipe into the exhaust system to help pull wasted exhaust gases away from the combustion chambers. An H-pipe allows the gas a different route to travel, thus helping achieve a balanced flow within both cylinder banks for increased horsepower.Bob will incorporate an H-pipe into the exhaust system to help pull wasted exhaust gases a Also pictured is Bob using a drill press with a hole saw attached to begin the opening in the oval tubing for the H-pipe crossover assembly to breathe.Also pictured is Bob using a drill press with a hole saw attached to begin the opening in Pictured here we have the Burns Ultra-Light stainless muffler assembly. These mufflers can be built to custom lengths and are available from 2- to 5-inch inside diameters. The Ultra-Light muffler contains a floating core design, allowing for easy rebuilds and as you can see has a straight-through design to provide the ultimate in flow, hence additional ponies.Pictured here we have the Burns Ultra-Light stainless muffler assembly. These mufflers can Also shown is the mid-section of the exhaust system neatly nestled beneath the Deuce. In order to transfer the power to the pavement, TCI Transmissions hooked us up with a 4L80E. The 4L80E will provide the ultimate in strength and reliability, while providing us a fourth gear to save a little petrol. All TCI transmissions are triple tested to ensure superior function out of the box.In order to transfer the power to the pavement, TCI Transmissions hooked us up with a 4L80 Pictured is the TCI unit installed behind our Kenne Bell-supercharged LS2, allowing us to properly construct the exhaust system.Pictured is the TCI unit installed behind our Kenne Bell-supercharged LS2, allowing us to Finally Bob TIG welds the back half of Getaway's exhaust system on a completely flat surface, guaranteeing that it is true.Finally Bob TIG welds the back half of Getaway's exhaust system on a completely flat surfa The oval tailpipe is nestled neatly below the rocker (between the door and the rear wheelwell), and will be trimmed to proper size upon final assembly. Bob will also box in the rocker and add a stainless steel trim ring to protect the paint—yes, that's right, Getaway will get some color very soon.The oval tailpipe is nestled neatly below the rocker (between the door and the rear wheelw Here we have the completed mock up. All seams will be meticulously welded via stainless wire and custom exhaust hangers will be added upon final assembly. In conclusion, as simple as we may think the exhaust system may be, there is a boatload of technology behind it.Here we have the completed mock up. All seams will be meticulously welded via stainless wi SOURCES Turn Key Engine Supply 2620 Temple Heights Drive Oceanside CA 92056 760-941-2741 www.turnkeyengine.com Burns Stainless 1013 W. 18th Street Costa Mesa CA 92627 949-631-5120 www.burnsstainless.com TCI Transmissions 151 Industrial Drive Ashland MS 38603 888-776-9824 www.tciauto.com Carroll's Rod And Racecraft 11 American Way Suite 17 Spotswood NJ 08884 732-416-9887 www.rodandracecraft.com « | 1 | 2 | View Full Article By Dan Ryder Enjoyed this Post? Subscribe to our RSS Feed, or use your favorite social media to recommend us to friends and colleagues!
