Teaxas X275 Rules:





Texas 275 rules

TeX275.com

2011 season





*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. Wheelie bars will be allowed for the 2011 season only



*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. Must have stock floor pans from tubs forward. No back half chassis cars allowed.

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. Any 275/60 designated drag radial is allowed.

2. No slicks of any type allowed.



*Power Adders*



1. Only ONE type power adder allowed

2. Timers and controllers are allowed.

3. Progressive nitrous controllers and data recorders allowed.

4. Dual entry and single entry plates are allowed 1 nitrous solenoid and 1 fuel solenoid in a single stage configuration.

5. 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. 15 lb. maximum size. (Push systems prohibited.)

6. Maximum nitrous supply line is a single #6 line.

7. Max 88 MM turbo inlet. 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.

8. Big Blocks and Small Blocks will be limited to a .036 jet maximum on each cylinder on a fogger. Dual entry plates are limited to “2” .075 nitrous jets along with a single nitrous solenoid. Single entry plates limited to a .112 nitrous jet and a single nitrous solenoid.

9. Maximum supercharger F1 air to water.

10. No big blocks allowed with a turbo or procharger/blower.




*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. 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" deck height. BBC 427 tall deck "truck" block allowed.



*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* or BBF “C” heads allowed.

4. Minimum non-stock valve angle for small blocks is 15 degrees.

5. No Big Chief, Big chief style or Little chief heads.

6. Porting allowed.

7. Yates or Yates style heads are allowed C Series or equivalent, must add 100 pounds and no forced induction

8. Yates SC-1’s and Chevy SB2 are allowed, but will carry 150 pounds. **No Yates or SB2 heads will be allowed with forced induction applications.**

9. Valve angle will be plus or minus 1 to 1 1/4 degrees max.

10. Heads must have manufacturer’s markings visible.

11. If you are not sure if a particular head is allowed, contact TTT5/Tex275 for clarification.



*Exhaust*



1. Mufflers Required.

2. No Insert or Collector mufflers.



*Weight Breaks*



**Small block**



1. up to 440" - 3000#



2. 441-499" - 3100#



3. 500+" – 3150#



4. *LSX powered cars – 3200#

5. *Turbocharged / Procharged Small Blocks 3300# (88mm) example- reduced 88/98’s and 91’s

6. *True 88mm, non reduced in a true 88mm housing 3200# GT47 or equivalent

7. *Any billet wheel turbo – 3350.

8. *Any TRUE nitrous 23* headed SBC or 20* SBF subtract 200#

9. *Any 15* Chevy head add 50#.

10. *Yates C heads or equivalent Add 100#.

11. *Yates SC1 or Chevy SB2 add 150#.





**Big Block**

1. Up to 530" - 3200#

2. 531-570"- 3250#

3. 10 head bolt Ford blocks 571 - 600" 3300#

4. 571-600" - 3350# Applies to aftermarket chevy blocks and 18 head bolt Ford blocks

5. 605" + 3450#

6. 632" Cubic Inch MAXIMUM

7. 10.2" Deck height MAXIMUM



**TECH**



1. All engines are subject to valve angle, port location, and displacement verification at any time.

2. Nitrous limits and turbo size will be verified before each event and at random during the event as deemed necessary by tech officials.



These rules will be adjusted as necessary after two races!