As the off-road racing community and technology grew, so did the vehicle speeds and related suspension components. Today, these are without a doubt one of the most highly strained engines in motorsports – bar none.
Since motorcycle bearings are smaller than automotive, the oil clearance is smaller too. In order to achieve optimal conditions of hydrodynamic lubrication, the absolute tolerance of the oil clearance should be tighter than that of bigger automotive bearings.
Back when we started to get serious about competing in the V-Twin drag racing scene, there were four or five manufactures making engine cases, heads, crank/flywheel assemblies, and connecting rods, along with other parts for large cubic inch competition V-twin engines. At the time, the largest factory engines from Harley-Davidson were 80 cubic inch big
While not impossible to build, offshore marine engines are not the easiest to build either, so it takes a skilled and experienced engine builder to churn out the power levels most customers desire.
The small blocks are preferred over the big blocks in dirt racing because of their lighter weight for better handling through the turns. In this type of racing, the way your car drives through the corners is way more important than horsepower down the straights.
When it comes to the foundation of drag race engines these days, a majority of builders are into the Hemi and the 481X platform.
The Performance Racing Industry (PRI) trade show is back and ready to roll in Indianapolis on December 9-11, 2021.
I’ve actually lost track of how long it’s been since people started claiming print was dead. It’s been a while! Now, I understand the ‘print is dead’ claim might be different for newspapers than it is for magazines, but I can tell you this – the content landscape has certainly been shifting. When I look