Welcome back for Part 2 of tune-up tips for your older Corvette. Last time we talked about tricks of the trade when setting points. This month we will talk about setting ignition timing. The most ...

Ignition timing is an often-misunderstood concept that has a big effect on performance. An air/fuel mixture burn rate doesn't increase in direct proportion to engine rpm. Therefore, the faster the ...

Duvernay has the highest stock output production Quad 4: the 190-hp 1991 to 1992 RPO W41. The 1993 W41 lost 10 hp due to smaller exhaust ports. I have a 1992 Olds Achieva SCX with a W41 Quad 4 engine ...

This noise is increasing and my engine has started to lose power, has unstable idling and displays a check engine light I drive a Toyota CAMRY 2003 with a 2AZ-FE engine. Recently, my engine started ...

An engine's health depends on several key measures and functions. For example, air and fuel need to be present in the correct quantities, coolant is required to keep the engine operating at a safe ...

Having a car with outrageous low-end throttle response and top-end horsepower is something every gearhead strives for. The correct combination of parts will get you close, but it’s the tune-up that ...