From the September 1997 issue of Car and Driver. During our first drive of this new five-valve Audi A4 2.8, we noticed that the only cars able to force us out of the blazing left lane of the autobahn ...

Fittings such as these, for connecting a compressed air line to the spark plug hole for valve support, are available at most auto parts stores. Occasionally it is necessary or desirable to inspect or ...

Performance is all about pushing the envelope. As camshafts become more aggressive in the search for more power, these lobes make life increasingly difficult for valvesprings. This may seem like a ...