| Theorists - a unique exhaust exercise for you |
Subject: Theorists - a unique exhaust exercise for you by Notorious on 2008/3/10 1:45:25 It's likely that I'll be coming into a low-mileage '56 Plymouth flathead six that I will go through, modify and use in a very traditional and early style hot rod project. For those unfamiliar, these engines were used in various Chrysler Corp. cars from the 1930s through 1959. Beyond that they continued to be manufactured new by Chrysler through 1972 for use in various industrial applications. This particular 230 inch version already has more HP and torque than the best flathead V8 that Ford ever produced and also a well deserved reputation as a good performer back in the early days of hot-rodding. Anyhow, I'll be building my own multi-carb intake manifold and header for this engine. And my question concerns the exhaust. Split exhaust manifolds were a popular upgrade way back when, routing cylinders 1, 2 & 3 into one pipe and 4, 5 & 6 into the other. I'm considering building a 6 into 3 into 1 header as a more advantageous configuration in regard to getting the utmost in scavenging. The firing order is 153624 by the way, very common and in fact nearly universal among inline six cylinder engines. Thoughts regarding this, cylinder pairing and other aspects would all be appreciated. I'm certainly not building this engine for all out racing. But I do wish to make it a sound performer for what it is. And one that will open some eyes, especially among those not familiar with such antiquated technology. In other words, I want to have fun with it! Thanks. |
