Jack Renn
Jack Renn’s a NASCAR writer who digs into the speed and scrap, delivering the straight dope on drivers and races with a keen eye for the fray.
Daytona heartbreak hits four contenders at finish
The emotional roller coaster of Daytona 500 glory was on full display Sunday night. Carson Hocevar, Erik Jones, Ricky Stenhouse Jr., Chase Elliott and Tyler…
Byron salvages 12th after early Daytona wrecks
William Byron arrived on Sunday chasing a third straight Harley J. Earl Trophy, and his shot nearly ended before the race settled in. A spin…
Tyler Reddick wins Daytona 500 for Jordan
Michael Jordan, six time NBA champion, is now a Daytona 500 winner too. Tyler Reddick won “The Great American Race” on Sunday with a last-lap…
The Dirty Air Problem on Short Ovals Explained
Dirty air is the part of oval racing that looks simple on TV and turns into a headache the second you try to run two…
Why Track Bar Changes Feel Huge in NASCAR
Track bar adjustments sound like garage jargon until you see how much they change the car’s balance. On a NASCAR stock car, the track bar…
IndyCar: Fuel Saving on Ovals, How It Is Done
Fuel saving on an oval is not a cute side quest. It is a cold calculation about track position, pit lane time loss, and how…
NASCAR: Why the Next Gen Car Changed Tire Wear
The Next Gen NASCAR car’s altered tire wear is a direct result of its new, larger 18-inch aluminum wheels and low-profile tires, combined with changes to the…
IndyCar: How Push to Pass Really Changes Strategy
IndyCar’s Push-to-Pass (P2P) fundamentally changes race strategy by offering drivers limited bursts of extra horsepower (around 60-80hp) for overtaking and defense, turning simple passing into…
What is the point of drafting in NASCAR?
The point of drafting in NASCAR is to reduce aerodynamic drag, allowing cars to go faster with less engine power by using the slipstream (low-pressure wake) of…
Why Do Ovals Punish Steering Inputs In IndyCar?
IndyCar oval racing places cars and drivers in a mechanical state that leaves almost no margin for unnecessary steering input. At sustained speeds above 200…