The Official What class am I in thread? Ask Questions!

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The Official What class am I in thread? Ask Questions!

Post  BOWERS on Thu Jan 10, 2008 9:08 am

Confused what class you should be in? New to the sport and don't know where to start? Post your make, model, year and complete list of mods to help class your car for the upcoming SOLO2 season.

The Basics:

There are 4 main categories your car can fall into. Stock, Street Prepared, Prepared, and Modified. The Street Touring classes (STS, STS2, STX, STU) fall in between Stock and Street Prepared, while the Street Modified classes (SM, SM2) fall somewhere between Street Prepared and Prepared.
Stock

This class includes mass produced vehicles able to be used for normal street driving. Stock Category cars must compete in their showroom configuration with only minor modifications allowed. Some of the basic mods allowed include: any DOT legal tire that fits on the OEM size rim, up to double adjustable shocks, cat back exhaust, and front (only) sway bar. Please refer to the Solo Rules for details on the allowable modifications.

Some of the cars commonly found in Stock classes:

* SS: C5 Vette, 93+ turbo RX7, 911 turbo
* AS: new M3, C4 Vette, 911(993), S2000
* BS: M3, 87-91 turbo RX7, 350Z, Camaro SS
* CS: Miata (2nd gen) , MR2 spyder and turbo
* DS: Integra Type R, Mazdaspeed Protege, Subaru WRX
* ES: Miata (1st gen), MR2 n/a
* FS: American V8, Camaro, Mustang
* GS: V6 Camaro, Neon, CRX Si, Mini Cooper S, GM J-body, VW 1.8 turbo
* HS: most small 4 cyl

Street Prepared

Any and all Stock Category vehicles are eligible for Street Prepared. Some of the basic mods allowed include: any spring, strut/shock on OEM mounting, two point strut bars, any wheel with DOT tires, padded racing seats, headers, intake, chip, limited port and polish, .40 overbore. No internal engine modifications are allowed, but minor changes to the bodywork to accommodate larger wheels and tires are permitted. Please refer to the Solo Rules for details on the allowable modifications.

Some of the cars commonly found in Street Prepared classes:

* ASP: new M3, C5 Vette, RX7 turbo
* BSP: E36 M3, all other Vettes, Nissan/Datsun Z cars, S2000, WRX STi, Mitsu EVO
* CSP: E30 M3, Civic/CRX Si, Miata
* DSP: Integra & ITR, Neon, BMW 325-330, GM J-body, SOHC Civic
* ESP: American V8, Camaro, Mustang, 4wd turbo Talon/Eclipse, WRX
* FSP: most small 4 cyl

Prepared

Cars in the prepared class retain their original design, structure, and drive layout unless otherwise specified in the Solo Rules. Minimum weights are specified for all cars as part of the classing structure. Some of the basic mods allowed include: racing slicks, most internal engine mods, and interior removal. Please refer to the Solo Rules for details on the allowable modifications.

Some of the cars commonly found in Prepared classes:

* XP: Lotus
* BP: RX7 turbo, Viper, 928S, 944 turbo
* CP: American V8, Camaro, Mustang, Corvair
* DP: MG, Spitfire, X1/9, Miata, CRX
* EP: Integra, Neon, Civic
* FP: Nissan/Datsun Z car, RX7, 911

Modified

These vehicles are heavily modified specifically for the purposes of competition. Vehicles in this class include: formula cars, sports racers, single-seat specials, and kit cars. Some of the basic mods allowed include: engine swaps and power adders (turbos/superchargers). Please refer to the Solo Rules for details on the allowable modifications.

Some of the cars commonly found in Modified classes:

* AM, BM, CM: Formula cars, Sports Racers, Specials
* DM: 2000 cc and under
* EM: over 2000 cc

Street Touring: STS, STX, and STU

Think Street Prepared "Light." This category allows sedans (four seaters and coupes) which must use street tires with treadwear ratings of 140 or higher. Allowed mods include: headers, intakes, chips, body kits, sway bars, springs, 2pt strut bars, fully padded front seats (over 15 lbs). Please refer to the Solo Rules for details.
Street Touring: STS

This category is limited to 3.1L and under. No turbos except as listed in the rule book (VW 1.8 turbo, Audi A4 turbo, Mazda 323, and Volvo S40/V40). No mechanical LSD (OEM viscous okay). Maximum wheel width 7.5 inches. Maximum tire width 225. Please refer to the Solo Rules for details.
Street Touring: STS2

Same basic rules set as STS but limited to 2 seat cars, 1.8L and under, such as CRX, delSol, Miata (90-97), RX7 (non-turbo 79-92). Excluded vehicles: Miata 99+, MR2 91-95 and 00+, all Lotus. Please refer to the Solo Rules for details.
Street Touring: STX

Maximum 5.1L normal aspirated, maximum 2.0 turbo/supercharged, LSD, maximum wheel width 8.0 inches, maximum tire width 245. Excluded vehicles: E36 M3, M5, Mitshbishi EVO 8, and WRX STi. Please refer to the Solo Rules for details.
Street Touring: STU

STX rules but with no restrictions on wheel size. Maximum tire size is raised to 275 for 2WD (245 AWD), forced induction limited to 3.1L. WRX STi, EVO 8, and SRT-4 are allowed. Excluded vehicles: E46 M3, and the E39 M5. Please refer to the Solo Rules for details.

Some of the cars commonly found in Street Touring classes:

* STS: Civic, Integra, Neon, MINI Cooper, Cavalier, Impreza 2.5 RS
* STS2: CRX, delSol, Miata (90-97), RX7 non-turbo, MR2 (1st gen)
* STX: WRX, Integra type-R, Cooper S
* STU: Mustang, Camaro, WRX STi, EVO 8, SRT-4, Supra, RX8

Street Modified: SM, SM2

Similar to Street Touring except that extensive drivetrain and suspension modifications are allowed. The SM Class is for 4 seat sedans and coupes, not sportscar based. All Street Touring and Street Prepared modifications are allowed. Same manufacturer engine swaps are allowed such as: Honda/Acura, Toyota/Lexus, Chevy/Pontiac. Aftermarket turbo/superchargers are allowed and rear seats may be removed. Maximum displacement: 6.0L normal aspirated; 3.0L OHC turbo; 4.0L pushrod turbo; and 1.5L rotary. For minumum weights, see the rule book. Please refer to the Solo Rules for details.
Street Modified: SM2

Two passenger cars (except Lotus) and cars beyond SM. Please refer to the Solo Rules for details.

Some of the cars commonly found in Street Modified classes:

* SM: Mustang, Camaro, Civic, Integra, 330, M3
* SM2: Miata, CRX, delSol, Corvette, S2000

Above info is courtesy of nrscca.com

Also here is a copy of the 2008 SCCA SOLO Rules book:

http://www.scca.com/documents/Solo%20Rules/2008_Solo_Rules_2.pdf


Last edited by on Mon Jan 14, 2008 6:58 am; edited 2 times in total
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BOWERS
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Re: The Official What class am I in thread? Ask Questions!

Post  BOWERS on Sat Jan 12, 2008 3:00 pm

new rules link is up...
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Male Number of posts : 226
Age : 37
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Registration date : 2008-01-08

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