Engines

How Mobil1 Goes in a ‘Quaker State’ Engine

Got a number of questions today about how a team that uses Hendrick engines – Hendrick having Quaker State as a sponsor – can have sponsorship from another oil company. The questions were along the lines of “Will Stewart-Haas have to drain the oil pans when they get them from Hendrick?” Here’s a quick answer, since I’m in the middle of a cross-country move and just about everything I own is in boxes: […]

Aerodynamic Forces
Drayson Racing
Engines
Browne, Josh

Pit Road Speeding Explained

The black helicopters were out over Indy on Sunday, or so suggest some Juan Pablo (a.k.a. Juablo) fans. This happens every time someone leading a race (or contending for the lead) gets a pit road […]

A photo of a camshaft
Engines
Dynos

Magnets and Dynomometers

I have never seen Robin Pemberton looking so disgusted as he did during an interview replayed on NASCAR Now Monday evening. (Well, maybe not since Daytona 2007.) NASCAR did a chassis dyno test after the […]

Engines

Is the Tapered Spacer Rule Fair?

Combustion is the chemical reaction that converts gasoline into motion.  If you remember back to balancing equations in high school chemistry, that often tedious exercise is entirely due to the fact that chemical reactions are […]

Aerodynamics

Is More Horsepower Always Better?

A number of drivers and owners have said that Toyota engines have more horsepower. “I think everybody in the garage is down on horsepower compared to what the Toyotas are.” Kevin Harvick One report of […]

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