Valve springs for horsepower Ask Ed discussing how spring pressure and setup affect RPM and engine power output #Horsepower ...

We're always on the lookout for new stuff, so when information on Comp Cams dual conical valve springs came across our desk, we were eager to take a look. Comp introduced these dual conical springs in ...

If the cylinder heads are on the engine, you will need to add air pressure to the cylinder to hold the valves in place. Our example is the Craftsman 47089 compression test kit using the 14mm long ...

The scenario goes something like this. Our LS3 used to rev freely and make power all the way up through 6,800 rpm, but now it struggles to get to 6,000 and power is definitely down. After a thorough ...

Four-stroke engines, which make up 99% of vehicles on the road, rely on a system for managing air intake, compression, ...

As with every first year of production in the car world, the 2020 Corvette isn’t perfect. Quality control is questionable at best, the mid-engine sports car had to be recalled over the “flying frunk” ...