It's a story as old as hot rodding itself. It starts with the sales pitch-"Buy my widget and your engine will gain 50 hp"-and ends with a disappointed customer with a car that sure doesn't feel like ...

Love 'em or hate 'em, dynamometers have become an important part of our hobby and, even though they can be found at the scene of many a bench race gone awry or multi-page e-battle, they play an ...

Our domes are on fire thanks to one seemingly simple idea we had for a great story. We wanted to go undercover at five different performance tuning facilities and test each of their chassis dynos ...

Update #1 September-1-2010 02:49 PM PDT: Our friends at Diesel Power are also testing a 6.7L Power Stroke V-8 this week. Check out the results of their pre-flash dyno run. You can see significant ...