In dyno testing the different intake manifolds on various engines, it’s found that the intake runner and plenum designs are main players in determining what the power curve for a particular engine combination will look like.
Like any engine that’s in its planning stages, particular care must be paid to that engines intended use in order to select the correct parts and maintain those clearances that would be considered optimal for that combination. In the case of the blown engine for Randy Gummelt’s rear engine dragster, I’ve already covered some of the parts selection as well as the main support girdle construction in previous articles. At this point, I’ll cover in more detail some of the specific clearances and specialized machine work that was required to make Randy’s engine a reality. Continue reading “Blueprinting for an eight second Y-Block”