Older vehicles with distributor-based ignition systems need their timing checked on a regular basis, otherwise you can have a host of problems. Starting becomes difficult, idling will be rough, ...

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 ...

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 ...

'The new darling of the engine-swap set is the GM Gen III family of small-blocks that includes everything from the lowly 5.3L truck engine to the LQ9 6.0L all the way up to the swarthy Corvette LS7 ...

In a perfect world there would be no need for ignition advance curves. As soon as the piston in your vintage Vette reached top dead center and the engine built maximum compression, you'd be able to ...

Some very valuable tuning tools are greatly misunderstood. Take the lowly vacuum advance canister. Many enthusiasts dismiss this device as superfluous—or worse—only for emission-controlled engines.

for mower engines. A Tachometer is a gauge on a vehicle that tells you how quickly the crankshaft of the engine is turning. It is typically a unit of measure called revolutions per minute (RPM). There ...