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EZ Street 2010
This class is limited to nitrous, single turbo, centrifugal
superchargers/OEM style automatic cars/trucks.
Body and chassis:
-Lexan/plexiglass window replacements permitted
-Functioning lights required.
-Sponsor lettering restricted to vehicle glass and/or hood
only.
-Light weight body panels allowed.
-Stock style , ladder bar & 4 link rear suspension. 4 link
permitted on NOS and
blower entries only.
-Stock style front suspension required. Full stock front
frame required with stock
suspension pick up points retained. Coil over conversions allowed. No
strut
conversions.( example vehicle must retain all stock components , if
vehicle came
with upper and lower control arms it must retain them)
-Stock fire wall and location required.
-No front spoiler unless OEM equipped.
-No forward facing hood scoops unless OEM equipped.
-A small rear wing permitted. No molding of spill plates to
quarters
Exhaust:
-Mufflers required on all combos. Must be commercially
available units, no home
built mufflers. No gutting of mufflers permitted. No insert style mufflers
, Turbo is not a muffler
Induction:
-No carbon fiber/sheet metal intakes for turbo or blower
combos. Fuel injected
entries may use fabricated sheet metal upper intake with cast aluminium
lower
intake.
-Single carburetor or throttle body only, fabricated intake
permitted on NOS entries
Nitrous systems:
-Nitrous systems limited to 4 solenoids (2 nitrous and 2
fuel).
-Single stage systems only. Must use fogger or plate, no
combination of the two
will be permitted.
-Fogger systems limited to single nitrous and fuel nozzle
per cylinder with single
nitrous and fuel feed per nozzle.
-Plate systems limited to single plate.
-Progressive systems with 1 extra nitrous solenoid
permitted.
-No disconnected auxiliary nitrous equipment permitted. Only
approved nitrous
system may be on entry to pass OSCA tech inspection.
Tires:
-31 tall 13.5 wide max DOT tire for all combos
-Drag radial allowed all combos (we will monitor and impose
penalties as we
judge performance)
-No slicks permitted
Transmission:
-OEM style automatic trans
Engines/ Weights Nitrous:
-350ci 2900# +2.5#/cube over 350
-450ci 3150# +1.5#/cube over 450 up to 510 (Maximum 510ci)
SB NOS ONLY slick max size 31W = + 100lbs
SB NOS ONLY 2 NOS systems = + 100lbs
SB NOS ONLY no weight adder for 4 link rear suspension
SB NOS ONLY 31/ 13.5 tire DOT tire = -100lbs
Engines/Weights Single Centrifugal superchargers:
Minimum SB weight 3050#
Minimum BB weight 3150#
Weight adder/ci
+3.3#/cube over 300
+ 2.5#/cube over 360
+2#/cube over 400 up to 510 (Maximum 510ci)
So the math would go like this
300 - 360 = 198lbs 300-360cube 3.3lbs per cube
360 - 400 = 100lbs 360-400cube 2.5lbs per cube
400 - 440 = 80 lbs 400-510cube 2.0lbs per cube
-Max supercharger inlet diameter 115mm = max blower F2
Engines/ Weights Single turbocharger:
-Minimum weight 3100# (entries cannot be lower than base
weight regardless of
weight breaks)
-300ci 3100# +3.3#/cube over 300
+2.5#/cube over 360
+2#/cube over 400 up to 510 (Maximum 510ci)
Turbochargers:
-Max turbo frame 106 ( NO BILLET WHEEL TURBOS)
-Max turbo inlet diameter 83mm-restrictor cannot have a
cross sectional area great
than that of a round 106mm inlet
-all air entering turbo must pass through 83 mm reducer
Weight deductions (*not applicable to turbo entries)
-stock suspension -100*
-SB NOS engines under 415 cube -200
-SB NOS engines over 415 cube -100
-F1R Blowers -100
-Air to air intercooler -100
Weights adders
-4 links add +100 (blower & nos ONLY, not permitted on turbo
entries)
Safety:
-Engine Diaper - Mandatory. Non SFI units OK.
-Fire System - Mandatory.
-HANS (or equivalent) device - Mandatory
Fuel:
-Gasoline only
-No Q 16 fuel for blower or turbo
If you are building a race car and you are unclear about
rules concerning your class, please contact us.
The CSCN reserves the right to impose penalties for rule
infractions and on items which do not represent the intent
of the class entered. |
