NASCAR Cup
NASCAR Cup
R
Daytona Clash
08 Feb
-
09 Feb
Next event in
18 days
08 Feb
-
16 Feb
Next event in
18 days
R
Las Vegas
21 Feb
-
23 Feb
Next event in
31 days
R
Fontana
28 Feb
-
01 Mar
Next event in
38 days
R
Phoenix
06 Mar
-
08 Mar
Next event in
45 days
R
Atlanta
13 Mar
-
15 Mar
Next event in
52 days
R
Homestead
20 Mar
-
22 Mar
Next event in
59 days
R
27 Mar
-
29 Mar
Next event in
66 days
R
Bristol
03 Apr
-
05 Apr
Next event in
73 days
R
Richmond
17 Apr
-
19 Apr
Next event in
87 days
R
Talladega
24 Apr
-
26 Apr
Next event in
94 days
R
01 May
-
03 May
Next event in
101 days
R
Martinsville
07 May
-
09 May
Next event in
107 days
R
All-Star
15 May
-
16 May
Next event in
115 days
R
Charlotte
22 May
-
24 May
Next event in
122 days
R
29 May
-
31 May
Next event in
129 days
R
Michigan
05 Jun
-
07 Jun
Next event in
136 days
R
12 Jun
-
14 Jun
Next event in
143 days
R
Chicagoland
19 Jun
-
21 Jun
Next event in
150 days
R
26 Jun
-
28 Jun
Next event in
157 days
R
Indianapolis
03 Jul
-
05 Jul
Next event in
164 days
R
Kentucky
09 Jul
-
11 Jul
Next event in
170 days
R
17 Jul
-
19 Jul
Next event in
178 days
R
Michigan II
07 Aug
-
09 Aug
Next event in
199 days
R
Watkins Glen
14 Aug
-
16 Aug
Next event in
206 days
R
Dover II
21 Aug
-
23 Aug
Next event in
213 days
R
Daytona II
27 Aug
-
29 Aug
Next event in
219 days
R
Darlington
04 Sep
-
06 Sep
Next event in
227 days
R
Richmond II
10 Sep
-
12 Sep
Next event in
233 days
R
Bristol II
17 Sep
-
19 Sep
Next event in
240 days
R
Las Vegas II
25 Sep
-
27 Sep
Next event in
248 days
R
Talladega II
02 Oct
-
04 Oct
Next event in
255 days
R
Charlotte II
09 Oct
-
11 Oct
Next event in
262 days
R
Kansas II
16 Oct
-
18 Oct
Next event in
269 days
R
Texas II
23 Oct
-
25 Oct
Next event in
276 days
R
Martinsville II
30 Oct
-
01 Nov
Next event in
283 days
R
Phoenix II
06 Nov
-
08 Nov
Next event in
290 days
Nascar 2018
Topic

Nascar 2018

NASCAR reveals 2018 rules package for Cup cars

shares
comments
NASCAR reveals 2018 rules package for Cup cars
By:
Oct 3, 2017, 5:20 PM

Aerodynamically, the 2018 Monster Energy NASCAR Cup Series car won’t be significantly different from the version raced this year.

Martin Truex Jr., Furniture Row Racing Toyota and Kyle Busch, Joe Gibbs Racing Toyota
Ryan Blaney, Wood Brothers Racing Ford, David Ragan, Front Row Motorsports Ford
Dale Earnhardt Jr., Hendrick Motorsports Chevrolet, Austin Dillon, Richard Childress Racing Chevrolet, Michael McDowell, Leavine Family Racing Chevrolet, Danica Patrick, Stewart-Haas Racing Ford
Martin Truex Jr., Furniture Row Racing Toyota
Ryan Blaney, Wood Brothers Racing Ford
Jimmie Johnson, Hendrick Motorsports Chevrolet
Martin Truex Jr., Furniture Row Racing Toyota, Kyle Busch, Joe Gibbs Racing Toyota
Race action
Denny Hamlin, Joe Gibbs Racing Toyota

The rules governing the use of engines in those cars, however, feature important changes.

In a Tuesday morning release, NASCAR provided Cup teams with a 50-page document — broken down to 38 pages of explanations and the remainder featuring diagrams detailing the important changes for next year.

NASCAR will release the hard copy of the 2018 Monster Energy Cup Series Rulebook on December 11.

For the first time, teams will be required to use the same engine in more than one race. Specifically, short-block sealed engines must be used in 13 races, meaning the engine block, crankshaft, camshaft, connecting rods, pistons and oil pan are sealed for use in a second race. Teams can choose in which 13 races they will use the sealed engines.

New engine policy among changes

For The Clash at Daytona and the All-Star Racing, teams will use a long-block sealed engine that has the same components as the short-block sealed engine along with cylinder heads and valves — pieces that are highly susceptible to failure.

NASCAR will enforce the single-engine rule at all events, including the Daytona 500. If a team is forced to replace an engine — no matter whether the failure occurs before first practice or after Happy Hour -- the car will start at the rear of the field for the event. Teams will no longer be able to carry engines in their backup vehicles. NASCAR is attempting to discourage teams from carrying three engines to the track.

The spoiler on next year’s Cup cars will remain at 2.375-inches tall by 61-inches wide. Each manufacturer will use a common flat splitter, radiator and oil cooler. The net rear steer will remain set at zero. NASCAR introduced this at the All-Star Race in May in an effort to keep team from reducing side force on the cars. With the exception of repaved and reconfigured tracks, NASCAR will set a one-rear gear rule for each race.

Due to teams’ continued work in the aerodynamics underneath the car, NASCAR has limited the number of fans located at wheel corners which are used to manipulate the air. The front sub-frame rules were also modified to reduce additional aerodynamic development.

NASCAR has eliminated ride heights at superspeedways. Through wind tunnel testing, NASCAR has discovered having the cars closer to the ground decreases lift-off speed by approximately 30 miles per hour. Teams will no longer have mandatory rear shocks or springs at Daytona and Talladega. The restrictor plates for the super speedways will continue to be 7/8-inch.

On the safety side, NASCAR will delay the introduction of the enhanced vehicle chassis (EVC) to 2019. Beginning in November, teams will be required to certify with EVC.

Despite the success of the Indianapolis Motor Speedway aero package in the Xfinity Series, NASCAR currently has no plans to use the same rules for Cup next season. According to a NASCAR spokesperson, the air ducts which were instrumental in the car’s success are not as easy to install on the Cup cars. However, it’s likely the Xfinity teams will use that same package at the Brickyard for 2018 and possibly at other venues on the tour.

 

Next article
NASCAR Hall of Fame inductee Robert Yates dies at age 74

Previous article

NASCAR Hall of Fame inductee Robert Yates dies at age 74

Next article

NASCAR delivers penalties to four teams after violations found

NASCAR delivers penalties to four teams after violations found
Load comments

About this article

Series NASCAR Cup
Author Lee Spencer