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Class Description
PRO STREET is the quickest and fastest heads-up class in the Pacific Street Car
Association's
line-up. Mid 6's at over 220MPH is what you will see
in this class. From '57 Chevys' to '07 GTOs'.. Twin Turbos',
Supercharged, and in your face Nitrous Injected Mountain Motors make's
this the class everybody is talking about!!!
Pro Street
CLASS GUIDELINES
BODY:
Steel, aluminum, fiberglass and carbon fiber bodies and body parts are allowed as long as the car
retains it's original appearance and profile. Wheel well openings can be modified for tire clearance.
Rear wings
are allowed, but may not extend more than 28 inches from the transition point with the body to the
tip. The drivers and passenger doors must be fully operational and must open from the outside. The
PSCA reserves the right to add weight penalties for any body modification
that does not fit within the current rules.
AERODYNAMICS:
PSCA reserves the right to add weight as deemed
necessary to any body style that presents a superior aerodynamic
advantage at any time during the season
LETTERING / DECALS:
Contingency decals
or SPONSOR decals may be
permanent on body, per approval from an PSCA official.
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:
Any chassis and suspension combination that passes NHRA safety standards is allowed.
DRIVE TRAIN:
Any rear-end, gear ratio and transmission are allowed. Automatic transmissions may use a
trans-brake air or electric shifters.
Ignition:
Entries may utilize only 1 Distributor or 1 Mag.
DISPLACEMENT LIMITS:
See Weight Breaks.
ENGINE MOUNT LOCATION:
The maximum allowable engine setback is no more than 10% of the wheelbase as measured from centerline of front spindle to center of furthest forward spark plug hole.
HEADS:
Any cylinder head is allowed as long as only 1 spark plug per cylinder
is functional.
EXHAUST:
Mufflers are not required. Headers must have
a 4 pipes into 1 single outlet collector and must not
protrude more than 2 inches outside the bodyline (Please
refer to picture below). If you run "Zoomies"
there is a 50lb weight add....
FUEL / FUEL SYSTEMS:
Gasoline
& Alcohol only (No Nitro) The PSCA 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 PSCA. Failure to pass fuel
check is grounds for disallowance of the run during competition and
disqualification from the event during eliminations.
INDUCTION
NITROUS OXIDE:
All nitrous systems are allowed. Nitrous oxide commercially available,
thermostatically controlled blanket-type warmer accepted. Any other external heating of
bottle's
prohibited. The use of any agents other than nitrous oxide as part of, or mixed with, this
pressurized fuel system is prohibited. Nitrous oxide may not be used in conjunction with
supercharger or turbochargers. If entry is teched in at a non-nitrous weight break, all
nitrous
oxide lines, fittings, solenoids, and bottles must be removed before car is allowed to pass tech.
SUPERCHARGER / TURBOCHARGER:
Single or multiple supercharger or turbocharger
allowed (max twin turbo size is 91.000mm ea.)
Two-stage superchargers or turbos are not allowed (twin superchargers or
turbos must share a
common plenum). Intercoolers are allowed. Screw & Roots-type limited to single supercharger per engine.
Roots-type size limited to 14-71; 19 inches maximum rotor length, 11 1/4-inch case width, rotor
cavity diameter 5.840 inches maximum, variable multi-speed supercharger devices prohibited.
Supercharger restraint systems required on Screw & Roots-type units. (96% Over-Drive
Limit on Screw Super Charged Entries)
Nitrous oxide not allowed in
combination with supercharger or turbocharger.
TURBOCHARGER MEASURING PROCEDURE (Example 88mm):
PSCA accepted dual turbochargers are permitted with the following requirements: 1) Turbochargers must be of conventional impeller and housing design and type. 2) Turbochargers are limited to a maximum size of 88MM - 3.464-inch- inducer wheel diameter at the point where the leading edge of the compressor wheel meets the inlet housing. 3) Inlet housing is permitted a maximum inlet diameter of 3.545-inch where the leading edge of the compressor wheel meets the housing. 4) Compressor wheel to housing clearance must maintain a maximum of 0.080-inch clearance beginning from a) where the leading edge of the compressor wheel 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. Injection of any liquid, gas, or any other substance into the inlet or exhaust housing prohibited. 6) Turbochargers must share common plenum. 7) Stacking turbochargers prohibited. Turbocharger compressor wheel must be constructed of cast or billet aluminum. Exotic material wheels prohibited.
TIRES:
Front tires must have a minimum tread width of 4.5 inches. Front tires do not have to be DOT
approved. Rear tires have no limitations. The tread of the tires must not protrude outside the body
line at the top of the tire.
PRO STREET WEIGHT GUIDE:
(All weights are race-ready, car with driver)
Engine Group/ Power Adder/ Weight
Import Combos:
Rotary Turbo or Nitrous / 1750
4 Cyl. Turbo or Nitrous / 1800
All 6 Cyl. Turbo or Nitrous / 2250
Single Turbocharged
Combos:
All 332ci or less/ Single Turbocharged / 2600
All 333ci-450ci / Single Turbocharged / 2700
All 451ci-500ci / Single Turbocharged / 2800
All
501ci-550ci / Single Turbocharged /
2900
Small Cubic Inch Twin Turbocharged
Combos:
All 332ci or less / Twin Turbocharged
(up
to 76mm MAX ea) /
2400
All 332ci or less / Twin Turbocharged
(76.001-80mm
MAX ea) / 2500
All 332ci or less / Twin Turbocharged
(80.001-88mm
MAX ea) / 2600
All 332ci or less / Twin Turbocharged
(88.001-91mm
MAX ea) / 2675
Medium Cubic Inch Small Block Twin Turbocharged
Combos:
All 333ci-450ci
/ Twin Turbocharged
(up to 80mm MAX ea) / 2600
All 333ci-450ci / Twin Turbocharged (80.001-88mm
MAX ea) / 2650
All 333ci-450ci / Twin Turbocharged
(88.001-91mm
MAX ea) / 2725
Big Block Twin Turbocharged Combos:
All
up to 450ci / Twin Turbocharged
(up
to 88mm MAX ea) / 2825
All up to
450ci / Twin Turbocharged
(88.01
- 91mm MAX ea) / 2875
Small or Big Block
(Big Cubic Inch) Twin Turbocharged Combos:
All
451ci-500ci / Twin Turbocharged
(up
to 88mm MAX ea) / 2850
All
451ci-500ci / Twin Turbocharged
(88.01
- 91mm MAX ea) / 2925
All
501ci-550ci / Twin Turbocharged
(up to 88mm MAX ea) / 2900
All
501ci-550ci / Twin Turbocharged
(88.01 - 91mm MAX ea) / 2975
Small Block NA, Nitrous & Supercharged Combos:
Small Block / Naturally Aspirated / 2000
Small Block / Nitrous Oxide / 2150
Small Block / Roots Supercharged / 2400
Small Block /
Screw Supercharged / 2550
Big
Block NA & Nitrous Combos:
Big Block Unlimited CI / Naturally Aspirated / 2200
Big Block up to a 5.0 Bore Center / Nitrous Oxide / 2550
Big Block over 5.0 Bore Center / Nitrous Oxide / 2600
Big
Block Supercharged Combos:
Big Blocks
up to 455ci/ Roots or Single Centrifugal Supercharged / 2700
Big Blocks
up to 455ci/ Screw Supercharger / 2850 (96%
Over-Drive Limit)
Big Block
456ci & up /
Single Centrifugal Supercharged / 2800
Big Block 456ci & up/ Roots Supercharged / 2800
Big Block 456ci & up/
Screw Supercharger / 3000 (96% Over-Drive Limit)
No Big Block Supercharged Combo (Except
Centrifugal) Can Weigh Less
Than 2600lbs
Weight Deductions:
*Entries using torque converters with manual trans may deduct...200 lbs.
*Entries using
OEM Automatic Transmission may deduct...250 lbs.
*Turbo
or Centrifugal Supercharged
Entries without an intercooler may deduct...50lbs
Weight Adds:
*Entries using "Zoomie
Type" Exhaust add... 50lbs
PSCA Required Decals:
Class Sponsor Decal
"Hughes Performance" decal must be installed on base of
windshield on the passenger side. (Bottom left hand side when looking at
front of vehicle windshield)
Series Sponsor Decal
"TBA" 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.
All contingency decals may appear anywhere on the windows 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 Rules:
Penalties will vary for any PSCA Class 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 car performance (Example: Over
CI, Illegal Power Adders, 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 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 Pro Street 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 Pro Street Qualifying Session is Completed, you are no longer able
to make runs in that 2nd class... This also means NO RUNS in the Sunday
Morning Bracket Time Trials Session.
TOW BACK &
TOW VEHICLES:
All Pro Street 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 vehicles must take the tree, and run down the 1/4 mile.
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
2nd in 2007 Championship Points, John Mihovetz
3rd in 2007 Championship Points, John Scialpi
4th in 2007 Championship Points, Gil Nevarez
5th in 2007 Championship Points, Kelly Bluebaugh
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