Here at VETTE, we've heard both sides of the engine-dyno argument. On one hand, a stout dyno sheet offers bragging rights to the owner, but on the other, you can't race a dynamometer, and they cost a ...

When the same motor is engine dyno tested and chassis dyno tested, a different tune is needed to produce the most efficient power. Once installed in the car, the vehicle's accessories, exhaust, and ...

Part 2: Must-read advice from expert Jim Mederer for anyone interested in a rotary engine. Few people outside of Mazda's RE research department know more about rotary-powered Mazdas than Jim Mederer, ...

There's an old saying in engine tuning that when adjusting the mixture of your engine you can be too rich a bunch of times, but only too lean once. With that in mind, determining the air-fuel ratio ...

Usually you'll only modify your engine's computer to achieve higher engine output, but with recent gas prices it's worth looking at your ECU to see what kind of gains in economy you can get. Since the ...

The Ford Cosworth YB engine is one of the most receptive engines to tuning that Ford has ever produced. Let’s take a look at how to extract those impressive power figures from the mighty Cossie motor… ...