Here's the official announcement from SoloMatters:
SCCA.com
For Immediate Release:
Official Specifications Announced for New SCCA Solo Spec Coupe Class
TOPEKA, Kan. (Oct. 11, 2017) -- In September, the Sports Car Club of America® unveiled the new Solo Spec Coupe (SSC) class concept for autocross competition. Today, the SCCA® has released the official specifications for that class, which can be reviewed online in full at the SCCA Solo Supplemental Classes webpage.
SCCA President Mike Cobb said the new supplemental class for 2018 national and regional events was developed to be unique in that it primarily focuses on a competitor's driving skill by having racers participate in nearly identical cars. The base platform selected by the Solo Events Board is the 2013 to 2016 Subaru BRZ or Scion FR-S, cars considered to be modestly priced, rear-wheel drive, late model enthusiast vehicles useful as both a "daily driver" and for autocross competition.
"The Solo Spec Coupe class leverages the market strength and know-how of longtime Club partners Tire Rack, Koni, Eibach and SPC Performance to create a turnkey competition platform that is both fun and cost efficient," Cobb said. "With an exhilarating car model and tremendous partner support, the SSC class will offer an amazing SCCA member experience we're sure many people will enjoy."
Howard Duncan, SCCA Rally/Solo Senior Director, pointed out that official SSC vehicle specifications include a number of mandatory components and parts that must be used and are required to be installed for national competition. Original equipment or equivalent components are not allowed at national events. However, individual regions may decide to allow SSC vehicles to compete in regional events with some original equipment.
"The Scion FR-S and Subaru BRZ are readily available and offer a platform where the modifications outlined in SSC rules can be made with ease," Duncan said. "The cars have proven to be reliable, which should help with cost containment over time. Plus, these street vehicles can be maintained for daily use while also allowing for autocross fun and performance."
Some of the mandatory components include tires sized at P225/45-17 with a UTQG treadwear grade 200 or higher, wheels with diameter and width of 17x8, and specific suspension upgrade kits and packages from Koni, Eibach and SPC Performance available through Tire Rack.
All work on SSC cars must comply with factory-authorized methods and procedures, or industry standard methods. Such work may not result in a part or combination of parts that provides a performance advantage. If a change or modification is not specifically authorized in SSC rules, it will not be allowed. However, components normally expendable and considered replacement parts may be used provided they are essentially identical to the standard parts, used in the same location, and provide no performance benefit. And it is not permitted to use non-compliant parts even if they have been set to the manufacturer's specifications.
Both front and rear suspensions may be tuned through their designed range of adjustment by use of the specified parts. No suspension part may be modified for the purpose of adjustment unless such modification is specifically authorized by the manufacturer service documentation. Suspension bushings as supplied in kits are mandatory. Those not included in the supplied kits may not be replaced with bushings of a different material.
No changes will be permitted to electronic engine management systems or their programming. The engine air filter element may be removed or replaced provided the air flow path remains as originally designed, but no other components of the air induction system may be removed, replaced or even modified. The muffler and midpipe may be substituted provided the system meets the minimum weight of 18 pounds and exits the car in one or both original locations. "Track pipes" or "straight pipes" are not permitted.
For more information, please visit the SCCA Solo Spec Coupe specifications webpage.
The Sports Car Club of America®, Inc., founded in 1944, is a 67,500-member motorsports organization that incorporates all facets of autocross, rally and road racing at both club and professional levels. With headquarters in Topeka, Kansas, the SCCA annually sanctions over 2,000 events through its 116 Regions and subsidiary divisions. Much of the SCCA's activities are made possible with support from the following Official Partners: Chevrolet, the Official Truck of the SCCA; Hawk Performance, the Official Brake Products of SCCA; Mobil 1, the Official Oil of SCCA; Sunoco, the Official Fuel of SCCA; and Tire Rack, the Official Tire Retailer of SCCA. To learn more, please visit
www.scca.com.
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