| Engine parts | Features and benefits |
| Mufflers |
| Mufflers perform two important functions: · Pass hot combustion gases out of engine and deaden live sparks · Muffle engine noise with minimum of back-pressure |
|
| · (1) Arc welded joints - Produce both gas- and water-tight seams - Many competitive mufflers are only spot welded at joints so they are vulnerable to seam splitting · (2) Bigger baffle areas - Screen out noise without interrupting flow of gases - Backpressure is held to minimum allowing valves greater freedom and minimizing loss of engine power · (3) Center tube and baffle plate made of quality steel - Steel will not oxidize under normal exhaust temperatures and will dissipate heat faster - Many competitive mufflers use cold-rolled steel, which is more susceptible to oxidation that causes premature muffler failure |
| · (4) Water trap - Eliminates water flowing back to cylinders which could damage engine · (5) Special black paint - Heat resistant to prolong life of outer shell - Many competitive mufflers are covered with aluminum paint or enamel which burns off in a few short hours leaving no protection to outer shell |
Last modified: 29Jun99.