2017 Downforce Package

[ChexOrWrex]

 

[klemmabyna]

from http://www.foxsports.com/nascar/sto...es-package-jimmie-johnson-carl-edwards-101416

2017 RULES HIGHLIGHTS
Race Package

• Splitter reduced by 3” in outboard regions
• Spoiler reduced in height to 2 3/8” x 61”
• Tapered rear deck fin
• Net rear steer -- zero

Safety

• Anti-intrusion plating and structural foot box (mandatory at superspeedways, optional elsewhere)
• Toe board foam (mandatory at superspeedways, optional elsewhere)
• Roof hatch (mandatory at superspeedways, optional elsewhere)
• Steering column mounting
• Garage-only fuel coupler

Superspeedways

• Restrictor plate reduced to 7/8”
• Vehicle weight increased by 20 lbs to accommodate structural changes

Tires

• Reduced tire allotment
• Start the race on tires used in qualifying

 

[klemmabyna]

the tire thing: are they still doing three rounds of qualifying?

do I have this wrong: in 2016 doesn't the final 12 have to use the same tires for all three rounds?

how is this going to work?

 

[jws926]

http://racing-forums.com/threads/2017-rules-package.55289/

 

[FLRacingFan]

the tire thing: are they still doing three rounds of qualifying?

do I have this wrong: in 2016 doesn't the final 12 have to use the same tires for all three rounds?

how is this going to work?

Only one set of tires used for all of qualifying, yep.

 

[Team Penske]

Harvick will damage the right front tire after his qualifying so that he gets a new tire.