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Xtreeme Drag Radial /
TT-5
is
a heads-up class for all
types of vehicles. Rear
suspension may utilize
ladder bar or four-links (no
full tube chassis).
Legal combinations include
the use of nitrous oxide,
supercharger, turbocharger
and normal aspiration at
different weight breaks for
parity. All entries must
compete
on a
must
compete
on a 12
inch wide (or smaller)
DOT
approved,
M/T Drag
Radial Tire or 29.5x10.5
Slick
Class Guidelines:
BODY:
The car must retain its original appearance and profiles. Aftermarket fiberglass
or carbon fiber replacement panels are limited to hood, front fenders, doors, deck lid and bumpers. One piece front ends are permitted, but must retain factory head lights,
grille and bumper (if originally
equipped).
FIREWALL:
Must retain in original factory location, and be constructed out of
sheet-metal. Notching of factory firewall for valve cover clearance is allowed. Firewalls that are moved from the
factory location will receive a 50lb weight
penalty..
INTERIOR:
Dash board must be
factory appearing and in stock location.
WINDOWS:
Must be of safety glass, Lexan, or other shatterproof materials, minimum 1/8th inch thick. Also must be clear and non hazy.
BRACKET RACING AIDS:
The use of bracket racing aids such as optical sensors, delay boxes, stutter boxes, and throttle stops are not allowed.
CHASSIS / SUSPENSION
FRONT SUBFRAME:
All sub framed or full framed cars must retain complete stock front subframe from firewall forward. Frame connectors or rear frame rails may not pass engine firewall, except for the following exceptions. The 62-67 Chevy II's and 64 1/2-68 Mustangs and similar cars with bolt-on front K-members, must retain stock or aftermarket bolt-on front subframe. The subframe must be a bolt on (not welded, unless kit is OK by
PSCA officials) to factory mounting location. Frame connectors or rear frame rails may pass firewall location, but not exceed where original front subframe mounts to the body. All late model Mustangs must retain factory front subframe from firewall forward. Stock or direct fit aftermarket K-members are permitted, but must be bolted in factory location using factory bolt holes. Cross members on all front sub frames may be altered or removed for oil pan clearance.
FRONT SUSPENSION:
All cars must retain stock suspension, aftermarket tubular control arms, coil over kits, or OEM front strut retrofits are permitted.
Replacement Bolt-on Lightweight K-Members
are legal, but must be a direct bolt on, no welding modifications permitted. Stock wheelbase will be enforced on all vehicles. You
can weld tubes from your roll cage
to the front suspension..
**The only front suspension bolt-on kit deemed legal by the
PSCA are the
CHRIS ALSTON, AJE, HEIDTS,
Smith Racecraft and *FATMAN bolt-on kits (for 62-67 Nova's,
67-69 Camaro's & early Mustangs)
Total Control Products Coil Over
Conversion Kits, and The Rod & Custom Motorsport Mustang II kit for 64 1/2-66 Mustang, Part
#RC-106 & Skinny Kid
front end kits for late model
Mustangs.... Kits must be installed as
instructed and not modified.
K-MEMBER
Aftermarket factory-replacement-type K-member permitted, but must attach to the chassis using only the original factory OEM-type mounting bolts. No part of the K-member may be welded to the chassis.
REAR SUSPENSION
No Restrictions
DRIVE TRAIN
AUTOMATIC TRANSMISSIONS:
Any OEM automatic transmission permitted. Aftermarket torque converter, shift kit, valve body, shifter, and pan cooler use are permitted. Trans brakes are permitted.
MANUAL TRANSMISSION:
After-market clutch (single disc only) assisted manual transmissions are allowed Clutch/Automatics or planetary transmissions
(Lenco or Jeffco) are not allowed. Split sliders are also not allowed. All shifts must be made manually without the aid of electric, hydraulic or pneumatic devices.
ENGINE:
Cubic inch limits.
(see weight guide below)
ENGINE BLOCK:
No Restrictions
OIL-RETENTION DEVICE:
All Xtreeme Drag Radial cars must utilize an NHRA-accepted lower
engine oil-retention device; may use a belly pan in lieu of a device
attached to the engine. The belly pan must extend from framerail to
framerail and extend forward of the harmonic balancer and rearward of
the flywheel and must incorporate a minimum 2- inch-high lip on all
sides. A nonflammable, oil-absorbent liner mandatory inside of retention
device.
ENGINE MOUNT LOCATION:
The
maximum allowable engine
setback from the center line
of the number-one spark-plug
hole to the center line of
the front spindle is 2
inches, except in those
vehicles in which the engine
was factory installed at a
distance greater than 2
inches behind the spindle.
In both
cases, the engine must
be mounted in front of the Original
Factory Firewall Location. For
those cars with the firewall
moved back and your engine
is more than 2" and
Less than 4" from
the center line of the
number-one spark-plug hole
to the center line of the
front spindle,
you will be penalized an
additional 50lbs
CYLINDER
HEADS:
No Billet Cylinder Heads
Permitted. See weight guide
below for individual specifications...
CARBURETOR / THROTTLE BODY:
Any single or dual carburetor or throttle body set-up is allowed
EFI:
Any EFI system is permitted
NITROUS:
Any nitrous combo is
legal.
SUPERCHARGER:
Roots up to a 14.71
(No Screwchargers) See
weight adds.
TURBOCHARGER:
Single Turbo 115mm Max
Turbo - Twin
Turbo 88mm Max ea. See
weight adds.
MEASUREMENT SAMPLE FOR TURBO
ENTRIES:
(80mm)
1)
Turbocharger must be of
conventional impeller and
housing design and type.
2) Turbocharger is limited
to a maximum size
of 3.14960 inches (80mm)
inducer diameter at the point
where the leading
edge of the compressor wheel
meets the inlet housing. 3)
Compressor
cover inlet is permitted a
maximum inlet diameter of
3.24060 inches
(82.3114mm) 4)
Compressor Wheel to housing
clearance must maintain a
maximum 0.091 (2.3114mm)
clearance beginning from a)
the leading edge
of the compressor wheel where
it meets the inlet of the
compressor
housing, to b) the transition
point where the trailing edge
of the
compressor wheel meets the
volute. 5) All air
entering the
turbocharger must pass
through the turbocharger
inlet. 6) Injection of
any liquid, gas, or any other
substance into the inlet or
exhaust
housing prohibited. 7)
Compressor wheel contour must
be continuous
features from the inducer to
the exducer (no "stepped"
wheels).
EXHAUST:
Production type mufflers or collector mufflers are required. Modification or removal of muffler internals is prohibited (no gutting).
IGNITION:
No restrictions
OILING SYSTEM:
No Restrictions. The front cross member may be altered for oil pan removal. Vacuum pumps are acceptable.
ON BOARD DIAGNOSTICS / DATA RECORDERS:
On board diagnostic computers and recorders are permitted. Memory and playback tachometers are allowed.
TRACTION
CONTROL:
Not
Permitted
STEERING:
Rack and Pinion allowed on all vehicles.
STREET LEGAL REQUIREMENTS:
All cars are required to have working headlights and tail lights. Brake lights, turn signals are
not required to operate.
TIRES:
Front tires must have a minimum tread width of 4.5 inches. Front tires do not have to be DOT
approved. Rear Tires...12 inch MAX wide
D.O.T. Drag Radials or Slick
- Mickey Thompson 29.5x10.5
(3062 or 3062s) Or Goodyear
29.5x10.5 (D2690 or
D2709)
WHEEL BASE:
Must retain stock wheel base with a maximum variation right to left and front to back of one inch..
WHEELIE BARS:
Wheelie bars permitted (see weight adds)
XDR/TT-5 WEIGHT GUIDE
Base
Weight (All
weights are race-ready, car
with driver)
4
Cly W/Any Power
Adder........................................................2650
lbs
6
Cly
W/Nitrous.........................................................................2650
lbs
6 Cly
W/Turbo
or Blower.........................................................2850
lbs
6 Cly
W/Turbo
and Nitrous.......................................................3300
lbs
Small
Blocks
W/Nitrous.............................................................2600
lbs
Small Blocks W/Single Turbo
(up to 94mm)
.............................3100
lbs
Small Blocks W/Single Turbo
(94.01 to 98mm)
.........................3200
lbs
Small Blocks W/Single Turbo
(98.01 -
115mm)..........................3300
lbs
Small
Blocks W/Twin Turbo (Up to
True 80mm
ea)
..................3300
lbs
Small
Blocks W/Twin Turbo (80.001
- True 88mm
MAX ea)
......3400
lbs
Small
Blocks Roots
Supercharger.............................................3200
lbs
Small
Blocks Centrifugal
Supercharger (Up to 4.5
Inlet)............3100
lbs
Small
Blocks Centrifugal
Supercharger (4.6 to 5.5
Inlet)............3200
lbs
Small
Blocks Centrifugal
Supercharger (5.6 to 6.05
Inlet MAX)..3300
lbs
Big Blocks Nitrous up to
500ci....................................................2950
lbs
Big Blocks Nitrous 501ci -
555ci..................................................3000
lbs
Big Blocks Nitrous 556ci -
600ci..................................................3100
lbs
Big Blocks Nitrous
601ci -
650ci..................................................3150
lbs
Big Blocks Nitrous
651ci - 750ci
MAX..........................................3300
lbs
Big Blocks Roots
Supercharger..................................................3350
lbs
Big Blocks
Centrifugal Supercharger up
to F3A-123...................3400
lbs
Big Blocks
Centrifugal Supercharger All
F3R or
Single Turbo....3450
lbs
Big Blocks
Twin Turbo (True 88mm MAX
each)...........................3550
lbs
WEIGHT
ADDS:
Add 50
lbs. For
Non Factory Location
Firewall
Add 50
lbs. For
Engine Set-Back over 2"
but not to exceed 4"
Add
50 lbs.
For
"Boosted" Small Blocks using CFE
"Pro King" & Edelbrock
"Victor II", Yates
High Port (part
#'s 6049SC1 & 6049C3H) Edelbrock
(SC-1) Brodix (BF 200
& 300 Series)
CFE "Storm"or
any splayed valve
cylinder heads or
Canted Valve (Brodix CV
SP265 & SP330) or similar
Canted Valve Cylinder Heads
Add
75lbs. For
"Boosted" Big Blocks Using Dart 383
Oval Port Heads Or Similar
(Conventional Head with
valve angle +/- 3 degrees
From Factory)
Add
150 lbs. For
"Boosted" Big Blocks using any
Canted, Splayed Valve, Pro
Stock or Big Chief Style or similar
Cylinder Heads
Add
250 lbs. For
"Boosted" Big Blocks using Brodix part
#'s PB-1200
PB-1201 PB-1202 and PB-2005
WEIGHT
DEDUCTS:
Deduct 150lbs. For All "Mod Motor" Combinations
Deduct
400lbs. For no Power
Adder (Use Nitrous Base
Weights)
PSCA Required Decals:
Class Sponsor Decal
MagnaFuel Decal must be installed on base of windshield on the
passenger side. (Bottom left hand side when looking at front of vehicle windshield)
before entering the tech area..
PSCA Oval Decals
1 PSCA Oval decal must be placed on each side of every car in a
visible location before entering the tech area..
Series Sponsor Decal
"Chassisworks" decal must be installed on base of windshield on the
drivers side. (Bottom right hand side when looking at front of vehicle
windshield)
Contingency Program & Contingency Decals:
In order to become eligible for PSCA official contingency
program, You must first become a member of the PSCA. You can do this at
the PSCA Event Trailer during registration or on-line at the PSCA
Store. In order to receive Contingency Monies from any of the
listed Contingency Sponsors, you must have the correct product listed
and matching Contingency Decal for that product on your car for the
entire PSCA Racing Event... Racers will be checked for Products &
Decals while be teched in and winners & runner-ups again will be
checked in the Winner's Circle after the conclusion of each event.
Winners & Runner-ups failing to show up for this mandatory Inspection
will forfeit all Contingency Money that is owed!!!! All Contingency
Decals may appear anywhere on the vehicle in a clear and
organized fashion. Contingency decals may not be overlapped or modified.
Most decals are available at the PSCA Event Trailer, but in the event
the PSCA does not have the decals in stock, it is the racer's
responsibility to obtain the proper decals to be eligible for the
Contingency payout. Penalties For
Violating any PSCA Class Or Contingency Program Rules:
Penalties will vary for any PSCA Class
& Contingency Program Rule violation's from
Championship Point Deduction, Race Suspension, Probation and/or Re-instatement
Fine (Paid to St Jude In the name of the PSCA) If you are in any
violation that directly effects our "Electronics Policies"
(Example: Use of a Delay Box, Use of a Throttle Stop, etc..) You can receive the Maximum Penalty
(Disqualification from Event with loss of 50 Championship Points,
Two-Race Suspension and a $500 Re-Instatement Donation) You will also be
listed on a Web Page for all to view what violation and penalty any
racer receives..
RACE DAY
POLICY'S
SCALES:
After each qualifying and elimination
pass, all XDR cars must stop and weigh at the track scales. If you lose in
eliminations, and your opponent fails to make weight you will be
reinstated into the eliminations only if you made minimum weight
requirements. If both cars failed to make minimum weight, both cars will
be disqualified. It is the driver's responsibility to verify with each
track scale, the weight of his/her car prior to each race day. There
will 5lb error factor allowed.
Alternating Lanes During
Qualifying:
Each XDR driver
must alternate lanes during qualifying. Even if you skip a session, you
must run the opposite lane you made your previous run in. If you choose
to ignore this rule, your second consecutive pass in the same lane will
be disqualified. Entering into a 2nd Class:
During qualifying, any PSCA racer who purchases a 2nd NHRA Tech Card and
pays entry into an additional class will be able to do so. However, once
your Final XDR Qualifying Session is Completed, Driver and Car are no
longer able to make runs in that 2nd class... This also means NO RUNS
(Driver and Car) in
the Sunday Morning Bracket Time Trials Session.
TOW BACK &
TOW VEHICLES:
All
XDR entries are allowed to tow
to staging lanes and to the track scales. All are subject to be searched by a PSCA Official at any time. BYE-RUNS:
All
XDR vehicles must take the
tree, and run down the 1/4
mile (Unless instructed by
PSCA Official) and
Scale
PAYOUTS:
All XDR Racers that earn prize money can go directly to the
PSCA trailer after eliminations and pick up his/her Winnings.
Winners Circle Picture & Contingency Verification:
XDR Winner & Runner-up must return to the PSCA Winners Circle
Area for Official Photographs and Contingency Verification. Failing to
do so, will result in loss of all contingency monies earned. There are
no exceptions!!!
PSCA
Race Day Rules and Procedures...Click Here
All
drivers and vehicles must meet current NHRA and track requirements.
For questions or more
information on these rules, please contact Mel Roth at 661-917-3078
2009 Championship Runner-Up Rich Hoyle
3rd in 2009 Points Allen
Stewart
4th in 2009 Points Al
Jimenez
5th in 2009 Points Slim
Zeinaty |
