On older vehicles and smaller engines, the carburetor controls the mixture of fuel and air that reaches the engine. Here's ...

Regardless of the larger target of extracting big power from your engine build is the primary goal of building a well-tuned combination that provides strong performance across the rpm band. And as ...

After months of acrimony between the California Air Resources Board (CARB) and the Engine Manufacturers Association (EMA), the two have agreed to flexibly implement the state’s toughest-in-the-nation ...

Kenworth Truck Co. announced a California-compliant version of Paccar’s MX-13 diesel engine is now available for its T680, T880 and W990 Class 8 trucks. The engine is compliant with forthcoming ...

The California Air Resources Board (CARB) released new guidance documents for manufacturers, dealers, upfitters, and buyers clarifying when heavy-duty engines must be certified in California and ...

The Truck and Engine Manufacturers Association (EMA) is suing the California Air Resources Board (CARB) in a bid to secure at least four model years of lead time before new emission standards are ...

The California Air Resources Board (CARB) has signed an “unprecedented” pact with North America’s largest truck and engine manufacturers that resolves key issues dogging the advance to zero emissions ...

Peterbilt said the new MX-13 version meets the CARB Omnibus Regulation and features redesigns of internal hardware and the aftertreatment system to effectively reduce NOx emissions. The larger volume ...

Kenworth has introduced a California Air Resources Board (CARB) compliant version of the Paccar MX-13 engine. The engine is available as a spec for heavy-duty Kenworth models that meet 2024 ...