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West Texas Mean Street
These rules are
in effect for the 2012 season. We do reserve the right to adjust the rules as needed to insure parity in this class.
This
class will be 1/8 mile heads up class using a .400 pro tree
All cars entered must run 7.50 or faster
It will be a 8
car qualified field, will extend to 16 if needed
Each car is allowed 2 qualifying passes
Each car will be responsible
for a membership fee of $100 for the year
All cars will be weighed after each pass
All cars MUST BE driven to the scales,
staging lanes and back to the pits after each pass
If a car wins 3 races in a single season they will undergo a review
for a possible weight penalty
All cars can and will be teched at any time to insure everyone is abiding by the rules
$150
fee to protest a car ($50 tech fee, if the car is found illegal the protester gets the other $100 back)
We will use the
safety rules that are set forth by the host race track (NHRA/IHRA), these rules will be enforced.. Safety is our #1 priority
Chassis
Stock
front and rear frame rails (must be in stock location)
Aftermarket control arms and bushings ok as long as they bolt in
stock locations.
Rack and Pinion allowed
All replacement parts must be in stock location
No replacement part may
be permanently attached to the chassis
K-Members allowed (late model mustangs, Camaro's and Firebirds)
K-Members must
feature stock attachment locations
Coil over shocks allowed.
Aftermarket bolt in sub frames not allowed.
Sub-frame
connectors okay.
Cross Members may be notched for oil pan clearance
Bolt on Traction devices only
Suspension components
must be attached to frame rails
Factory or Aftermarket type anti-sway bars allowed
NO Wheelie bars.
MOTOR PLATES
allowed but engine must stay in factory location
Rear shocks may be moved for tire clearance
No traction compound spraying
devices allowed.
Torque arms are limited to OEM equipped cars only.
Aftermarket strut is allowed but must follow the
following guidelines:
Full on race strut prohibited (i.e. 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
AWD & FWD Allowed.
Stock style or ladder bar suspension only, aftermarket 4 links are prohibited
Ladder
bars allowed with weight penalty (see weights)
Body
Stock Firewall must be in stock location
Unaltered floor
pan. May be altered for through the floor sub-frame connectors, etc.
NO body alterations (must have front and rear bumpers)
Headlights
and Taillights must be in working order
Fiberglass Limited to Hood, deck-lid and bumpers only
Aftermarket wings allowed,
MAX 15 inch from the leading edge
Forward mounted hood scoops prohibited unless OEM equipped
Mini tubs allowed
Interior
Two
Front Seats, passenger seat must be bolted in
Driver's seat must be mounted in front of the door jamb
Full Interior
(carpet, stock type dash and door panels)
No Lexan for cars (must have factory glass and windows)
Lexan for trucks is
limited to the rear window only
Back seat not required, seat area must be carpeted.
Tires
Any 275/60/15 drag
radial or any 28x11.5x15 DOT approved bias ply
Power Adders
Only one type of power adder allowed
Nitrous:
Only
one pressurized n2o bottle in car. 15 lb. Maximum.
N2O limited to a Plate type system with one n2o solenoid, one fuel solenoid
and one purge solenoid. Plate can only have one nitrous entry point and one fuel entry point.
Single wet or dry fogger
nozzle - allowed only one fuel and one nitrous entry point for the single fogger, or SINGLE dry nozzle with ONE nitrous entry
point.
Purge has to exit engine compartment.
Push systems are prohibited.
Maximum nitrous supply line is a single
#6 line.
**For any car running multiple stages, you are allowed to run a single stage (plate only, per the rules) as long
as the other stage(s) are capped off at the solenoids.
Forced Induction:
Single turbocharger limited to 80 mm maximum.
Measurement will be 1/16 inch from the compressor wheel.
Twin turbocharger limited to twin 61 mm maximum. Measurement will
be 1/16 inch from the compressor wheel.
Max compressor wheel size is 88mm for singles (reduced to 80mm) and 67mm for twins
(reduced to 61mm)
Turbocharger size will be verified by measuring the housing bore at the leading edge of the impeller
wheel and must maintain the contour of the compressor housing. The maximum diameter of the housing bore at the leading edge
of the wheel may not exceed 2 mm more than the maximum allowable turbocharger size permitted and may not have any additional
holes that allow air to enter the turbocharger
NO "thumper" turbos allowed
NO "cut down" compressor wheels allowed
Maximum
F1R supercharger or equivalent
Cog or gear driven superchargers are permitted, must meet all factory inlet, outlet,
and internal housing dimensions.
NO Roots type superchargers allowed
Air to Air intercoolers are the only form of
intercooling allowed.
All Cars must run Gasoline or E85, Methanol is prohibited
Progressive nitrous controllers and
data recorders allowed.
Engines
Sheet metal intakes limited to 4 cylinder engines only
Single Carburetor
only, maximum 4150 series
Dry Sumps not allowed
EFI MAX 92 MM throttle body limit on nitrous and turbo/supercharged
cars.
Horizontal throttle body limited to 4150 style.
Transmission
Any OEM style 2, 3, 4 speed auto allowed
OEM
style manual transmission (H pattern with clutch) allowed
No racing style transmissions allowed (Bruno, Lenco...etc.)
Exhaust
Mufflers
required on all but turbo entries
Exhaust is allowed to exit anywhere out of the fenders as long as staging is not affected
NO
insert or collector type mufflers
Weight Breaks
Naturally Aspirated cars can deduct 200# from their base weight
Ladder
bars add 50lbs to their base weight
**SMALL BLOCK**
Base weight - 3000 lbs
Small block turbo/supercharger:
Up
to 80mm/twin 61's/F1C - 3200 lbs
88mm/twin 67's with reducers/F1R - 3300 lbs
Small block nitrous:
Up to 440"
- 3000lbs
440"+ - add 100 lbs.
Conventional valve angle heads only
LSX cars:
Base weights same as small block
Minimum
valve angle *15*
LS7 style heads, factory valve angle only - add 200lbs
C5R heads Prohibited
**BIG BLOCK**
*Nitrous:
*3300#
base weight.
*up to 530" - 3300#
*530"-575" - 3400#
*Forced induction:
*limited to 468" - 3400#
*No
18* Oval port BBC heads
*No CFE 385's or larger
*575 cubic inch MAXIMUM!
** 4 Cylinder**
*2000# base weight
Sheet
Metal intakes allowed
** 6 Cylinder**
*2600# base weight
Cylinder heads
Billet or fabricated heads
prohibited
Internal port areas of cylinder heads may be welded or epoxied for repairing, but heads must maintain standard
"as produced" valve layout design, valve cant, and valve spacing. (no substituting canted valve for inline head, etc.).
Cylinder
heads must retain OEM style port/valve configurations and must be a massed produced type head readily available.
One-off
or custom made cylinder heads prohibited.
Heads must maintain conventional/stock style valve angles.
No Big Chief, Big
Chief style, 18* BBC, SB2 or Yates style heads allowed.
No 18* heads allowed except for LS1 stock valve angle heads.
Heads
must have manufacturer’s markings visible.
If you are not sure if a particular head is allowed, please contact
Chris or Aaron for clarification before race day.
Chris Spears - 432-413-6341
Aaron Wood - 432-638-7294
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