UPCOMING RACES
LAS VEGAS
NOV 20-24, 2024
RACE INFO | PAYOUTS | CONTACT | CONTINGENCY | STORE | CLASS RULES | CONTENDERS | SPONSORS | PRE-REGISTRATION
MAGNAFUEL XTREEME DRAG RADIAL
MagnaFuel XDR 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 naturally aspiration
at different weight breaks for parity. All entries must compete on a 12-inch-wide or smaller M/T Radial Tire (including
the 3763X 315 Pro Radial at a 100lb weight add) or a 29.5×10.5 or smaller Slick. If you currently run the LDR
(Limited Drag Radial) Series, your car/chassis is considered legal if you follow SCSN XDR weight & power-adder
guidelines for your combo
XDR / TT-5 will run on a 1/8-mile format with a 32-car qualified field with alternates
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 light, grille and bumper appearance.
BRACKET RACING AIDS:
The use of bracket racing aids such as optical sensors, delay boxes, stutter boxes, and throttle stops are not allowed.
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 back from the factory location will receive a 50lb weight penalty.
INTERIOR:
Dash board must be factory appearing and in stock location.
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, FDC Gen II
Chassis & 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.
ENGINE:
Cubic inch limits. (see weight guide below)
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:
Any cylinder head is allowed if only 1 spark plug per cylinder is functional.
FUEL:
Gasoline & Alcohol only (No Nitro) The SCSN reserves the right to check gasoline at any time during competition. The
addition of chemical additives intended to alter the makeup of the gasoline for increased performance is strictly
prohibited. During fuel check, a competitor must identify the brand of gasoline being used. The sample will be
considered illegal if it does not match the baseline results (ex. color, dielectric reading +or-.2, and chemical tests) logged
by SCSN. Failure to pass fuel check is grounds for dis allowance of the run during competition and disqualification from
the event during eliminations.
NITROUS:
Any nitrous combo is legal. Water Injection is legal
SUPERCHARGER:
Roots up to a 14.71 (No Screwchargers) See weight adds.
TURBOCHARGER:
Twin Turbo 88mm Max ea.
REAR TIRES:
Mickey Thompson 3558, 3062r, 3362r or 3654x Radials / 3062s, 3055s or any 28×10.5 or shorter/narrower slick
(Add 100 lbs for M/T 3763x 315 Pro Radial or M/T 3062w)
WHEEL BASE:
Must retain stock wheel base with a maximum variation right to left and front to back of one inch.
MAGNAFUEL XDR WEIGHT GUIDE:
Base Weight (All weights are race-ready, car with driver)
4 Cly W/Any Power Adder……………………………………..2350 lbs
V/6- W/Nitrous………………………………………………………2200 lbs
V/6 W/Turbo or Blower………………………………………….2500 lbs
I/6 W/Turbo or Blower & Nitrous……………………………..2600 lbs
Small Block W/Nitrous…………………………………………..2250 lbs
Small Block W/Roots Blower………………………………….2800 lbs
Small Block W/Blower (F1, F3D or Equivalent)………..2800 lbs
Small Block W/Blower (F2 or Equivalent)……………….2900 lbs
Small Block W/Blower (F3R or Equivalent)……………..2750 lbs
Small Block W/Single Turbo …………………………………..2625 lbs
Small Block W/Twin Turbo ……………………………………..3050 lbs
Big Block W/Nitrous (up to 570ci)…………………………….2650 lbs
Big Block W/Nitrous (571 to 600ci)……………………………2700 lbs
Big Block W/Nitrous (601 to 650ci)……………………………2750 lbs
Big Block W/Nitrous (651ci & up)……………………………..2800 lbs
Big Block Roots SC…………………………………………………..3100 lbs
Big Block Centrifugal SC (Conventional Heads) …………2950 lbs
Big Block Centrifugal SC (Hemi Heads)……………………….3100 lbs
Big Block Single Turbo (up to 600ci)…………………………3050 lbs
Big Block Single Turbo (601ci & up)………………………….3150 lbs
Big Block Twin up to 88mm Turbo ……………………………3300 lbs
WEIGHT ADDS & BREAKS:
• Add 50 lbs. For Non-Factory Location Firewall
• Add 50 lbs. For Engine Set-Back over 2″ but not to exceed 4″ (#1 Spark
• Plug behind Front Spindle Centerline)
• Add 100 lbs for M/T 3763x 315 Pro Radial & 3062w
• Deduct 50 lbs. For Using a “Blo-Thru” Carb(s) on a Boosted Combo
• Deduct 50 lbs. For Stock Suspension (All attaching points in stock locations – excluding shocks)
• Deduct 50 lbs. For Using 275x60x15 Drag Radial or 28×10.5 Radial Slicks
• Deduct 50 lbs. For All Cast (Block & Heads) Combinations
• Deduct 200 lbs. For Mod Motor Combo’s
• Deduct 200 lbs. For Stock Bore Space on Big Block Nitrous Combos
• Deduct 400 lbs. For No Power Adder (off Nitrous Combo’s weights)
XDR REQUIRED CLASS DECALS: Decals will be available at Sign-Up at the SCSN Trailer
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)
SERIES PRESENTED BY SPONSOR DECAL:
“FuelTech” decal must be installed on base of windshield on the driver’s side. (Bottom right-hand side when looking at
front of vehicle windshield) Decals will be available during registration at the SCSN Event Trailer
SCSN TITLE SPONSOR DECAL:
“Comp Cams” Decal must be placed on the upper windshield in the center
SCSN SERIES DECALS:
SCSN Decals must be placed on both left & right sides of race car on the 1/4 Window, 1/4 Panel or Side of Rear Wing in a
highly visible location
CONTINGENCY AND CONTINGENCY SPONSOR DECALS:
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 SCSN Racing Event… Racers will be checked
for Products & Decals while be teched in and winners & runners-up 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 SCSN Event
Trailer, but in the event the SCSN 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.
RACE DAY POLICY’S
Field Size and Ladder:
XDR will qualify on a 32-car field (with Alternates) both will be put on a 32-car Pro Ladder. If less than 32 cars enter, we
will follow the NHRA “Official Ladder” for the field size.
SCALES:
After each qualifying and elimination pass, all 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.
ALTERNATES:
If there are more than 32 cars qualifying for the 32-car field, we will start inserting alternates (To replace broken
qualified cars) starting at spot 33 and so on… If you are an alternate, and a spot opens, you will be inserted in the 1st
available position before the drivers meeting on Saturday afternoon.
TOW BACK & TOW VEHICLES:
All XDR entries can tow to staging lanes and to the track scales with a golf cart or other similar small tow vehicle. All
carts will be subject to search by a SCSN Official at any time.
ALTERNATING LANES DURING QUALIFYING:
Each XDR driver must alternate lanes during qualifying. If you choose to ignore this rule, your second consecutive pass in
the same lane on the same day will be disqualified.
AUTO-START:
The Auto-Start System will be turned on with a 7-sec timeout
BYE-RUNS:
All vehicles must take the Tree & Scale for opportunity at Lane-Choice for next round
Once Your Vehicle Passes Tech Inspection, There Are No Refunds
PAYOUTS:
$3,500 / To Win
$1,000 / Runner-up
$250.00 / Semi’s