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Chassis
1. Stock Front frame rails (must be in stock location).
2. Aftermarket control arms and bushings allowed as long as they bolt in stock locations.
3. Rack and Pinion steering allowed.
4. Aftermarket strut is allowed but must follow the following guidelines:
Full on race strut prohibited ( ie. Lamb or equivalent type )
Bolt in stock location with the exception of aftermarket K-Member
Strut must be comparable to QA1 or Strange style (adjustable)
Struts that changes caster and camber are prohibited
5. Aftermarket Coil shocks allowed
6. ALL replacement parts must be in stock location
7. K-Members allowed (late model Mustangs, Camaros and Firebirds)
8. K-Members must feature stock attachment locations
9. No part of the K-Member may be permanently attached to the chassis
10. Rear Frame rails must be in original stock location (minor notching allowed for tire clearance)
11. Mini Tubs allowed
12. Any rear suspension allowed, 4-links, ladder bars, etc.
13. Motor Plate and Mid Plate allowed
14. Motor must be in stock location
15. No traction compound spraying devices allowed.
16. Max 88 MM turboinlet. Air to liquid intercooler allowed. Measurement will be a 1/16th of an inch away from the compressor wheel. If it measures more that 88 MM or if the leading edge is more than a 1/16th away from the compressor wheel then the turbo is illegal. NOTE: All turbo cars will be checked.
17. Maximum supercharger F2 and D3 air to air.
Body
1. Firewall must be in stock location, minor modifications for trans, etc is OK.
2. Unaltered floor pan. May be altered for thru the floor sub-frame connectors, etc.
3. No body alterations (must have front and rear bumpers)
4. Headlights and taillights must be in working condition
5. Fiberglass limited to Hood, Bumpers, Deck Lid, front fenders or doors, limited to doors or fenders, not both. No one piece fiberglass front ends.
6. Forward facing hood scoops not allowed.
7. Drilling/cutting holes in hood for air inlet prohibited
8. No Pro Mod style wings
9. Max Wing 15" from leading edge
10. Lexan allowed
Interior
1. Two Front seats, turbo/supercharger cars may remove passenger seat for plumbing.
2. Driver Seat must be mounted in front of Door Jamb
3. Carpeted interior
4. Door panels (aluminum door panels allowed)
5. Stock Dash (aftermarket gauges allowed)
Tires
1. 10.9 Tread width only, NO W's. Hoosier part # 18192D05 will not be allowed.
2. 12.5 sidewall designation DOT Tires max
Power Adders
1. Only ONE type power adder allowed
2. Timers and controllers are allowed.
3. Progressive nitrous controllers and data recorders allowed.
4.
Only one fogger or single plate allowed. If a second nitrous system is on car it must be capped off at the solenoids. Dual stage, single nozzle foggers are not allowed. Only ONE nitrous bottle allowed in car.
Transmission
1. Automatic or factory equipped manual.
2. NO Brunos, Lencos etc.
Engines
1. NO Sheet metal Intakes
2. Must use mass produced cast aluminum intakes (no tunnel rams)
3. Single Carburetors only
4. EFI max 90 MM throttle body. 1250 CFM max
5. V6 Turbo may use air to liquid intercooler
6. F2, D3R blowers allowed air to air intercoolers only. F1’s or smaller can have liquid intercoolers
7. Max 6-71 Blower allowed
8. All cars must run gasoline (no alcohol or methanol)
9. Dry Sumps Not allowed
10. All big block engines limited to 10.2" deckheight.
Heads
1. Billet or custom fabricated heads prohibited.
2. Internal port areas of cylinder heads may be welded or epoxied for repairing, but heads must maintain standard "as produced" valve/port layout design, valve cant, and valve spacing.(no substituting canted valve for inline head, etc.)
3. Big Block cylinder heads must retain 24* style port/valve configurations.No BBC 18* heads allowed.
4. Minimum valve angle for small blocks is 15 degrees.
5. No Big Chief, Big chief style or SB2 heads.
6. Porting allowed.
7. If you are not sure if a particular head is allowed, contact TTT5 for clarification
8. Yates heads are allowed with a mass produced cast intake (nitrous cars only), must weigh 3200 lbs.
Exhaust
1. Mufflers Required.
2. No Insert or Collector mufflers.
Weight Breaks
**Small block**
1. up to 440" - 3100#
2. 441-499" - 3150#
3. 500+" - 3200#
1. Up to 530" - 3200#
2. 531-570"- 3250#
3. 571-600" - 3300#
4. 600" + 3400#
5. 632" Cubic Inch MAXIMUM
6. 10.2" Deck height MAXIMUM
1. *LSx powered cars - 3200#
2. *Turbocharged ANYTHING - 3350# (88MM)
3. *Any TRUE 23* headed small block subtract 100#
4. *YATES heads (or equivelant) - 3275#
5. *SBF CFE heads (or equivelant) - 3200#
6. *BBC CFE heads (or equivelant) - +100#
7. *18* Oval Port BBC heads (or equivelant) +100#
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