Backpressure can seriously sabotage your efforts to get plenty of air into the cylinders, yet many people overlook it and don’t know how to detect its presence. And how is the MAF sensor affected?
In this installment of Greg’s great exposition of high-performance rocker arms, we’ll be looking at the science and geometry involved, which you really must understand before you start building an engine.
Our man Greg has produced such a stupendous amount of truly useful copy on this subject that we’re going to present it in three parts. This time, we’re giving you interesting info on bore finish and block preparation.
The changes in how today’s reformulated unleaded gasoline burns in a vintage carburetor-equipped engine will often cause it to not perform as it should. These new blends are not as volatile, but still burn somewhat faster than the leaded gasoline of the distant past.
A pushrod selection consideration is the tuning effect of size, length, and stiffness of the components in the valve train. Any part has a natural resonant frequency at which it will vibrate and a point at which a small periodic input or disturbance coincides with the resonant frequency will cause the vibration to increase with each excitation input.
Two spectacular collections of antique, classic, and other interesting vehicles and memorabilia within a couple of miles of each other, either of which is worth the trip.
