2014 NASCAR Dover

Nearly 60 different enhancements / updates have been made to the NASCAR national series rules packages for 2015 in the following areas:

*New Rules, with one or more of the following goals in mind: enriched competition, improved safety, reduced cost, enhanced product relevance and environmental (green) improvements.

*Enhanced Enforcement of Existing Rules

*New Officiating Processes

*Newly Approved Parts

*Updated Business Processes

The following are among the significant updates to the competition package.


*There will be a NASCAR-mandated ban on all team-initiated private testing in 2015

*Teams will be invited to participate in NASCAR / Goodyear tests

*NASCAR will not conduct a test at Daytona International Speedway prior to the Daytona 500

Rules - 2015 NASCAR Sprint Cup Series Race Package includes:

*Reduction of horsepower to 725 via tapered spacer

*Roller valve lifters to replace flat valve lifter

*Lower rear differential gear ratios targeting 9,000 RPM

*Rear spoiler adjustment to 6 inches high (2014 height: 8 inches)

*Optional driver adjustable track bar

*38-inch wide radiator pan

*Minimum vehicle weight drops 50 lbs. via ballast reduction (2014 weight: 3,300 w/o driver)

*Updated qualifying formats for all tracks

*Rain tires on road courses, similar to rules in place for the NASCAR XFINITY Series and NASCAR Camping World Truck Series; mandatory wipers, defogger and rear flashing rain light installed for the event weekend

New Officiating Processes:

*Data Log and Capture System for pre-race inspections

*Automated pit road officiating at race events

*Newly Approved Parts

*Revised brake calipers

*Updated Business Processes

*Electronic rule book

*New parts approval process

For more information about the NASCAR Sprint Cup rule changes for 2015, click here.

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