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 ...

If you have a lemon, make lemonade." Rather than complain about all the newfangled computer/smog technology, wise hot rodders are finding that they can adapt much of it to make their cars run faster.

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 ...

One of the most misunderstood and feared aspects of racing with aftermarket parts is tuning. Without proper tuning, even the most carefully built motor will go postal. For some people, tuning means ...