Böcker av David Vizard

Increase the power output of your A-Series! This fact-filled guide covers all aspects of engine tuning in detail, including filters, carburation, intake manifolds, cylinder heads, exhaust systems, camshafts, valve trains, blocks, cranks, con rods and pistons, plus lubrication systems and oils, ignition systems, and nitrous oxide injection. Applicable to all A-Series engines, small and big bore types, from 803 to 1275cc.

Author Vizard explains how the enthusiast needs to shape the combustion chambers and smooth out ports for maximum performance. Of key importance, he shows how to optimize flow paths through the heads, past the valves, and into the combustion chamber. It covers blending the bowls, a most basic porting procedure, but it also covers pocket porting, porting the intake runners, and many advanced procedures. These advanced procedures include unshrouding valves, porting a shortside turn from the floor of the port down toward the valve seat, and developing the ideal port area and angle. All of these changes combine to produce optimal flow velocity through the engine for the maximum power.

The photos in this edition are black and white.Acclaimed automotive technical writer David Vizard examines the finer points of carburetors and intake manifolds, looking for the smallest of modifications and upgrades which often result in large performance gains. How to Build Horsepower: Volume 2 includes Carter, Holley, Predator, Weber, Dellorto, and Mikuni carbs, dozens of factory and aftermarket manifolds, tunnel ram intakes, etc. Also covers carb calibration methods, analysis of different designs, mixture ration, test results of various carb and intake combinations.