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blimpyboy
08-11-04, 04:37 PM
Heya guys, just wondering what the rules are for sports sedans, seems to me to be a free for all as long as your engine is under 6 liters? (From what i can find on the net)

I've googled a bit and searched the forums so perhaps one of the circuit racing guys could enlighten me a bit with a basic outline of "what goes" for this class, just for interests sake?

dattoman1000
08-11-04, 08:37 PM
Contact CAMS and get a manual. Then contact the Sports Sedan Association for the Sup Regs.

Basically though

2. ELIGIBILITY
To be eligible for this group cars must be fourseat
series production closed cars, manufactured
primarily from steel and must be or have been:
(1) On sale in Australia through a recognized
manufacturer franchised dealer network, or;
(2) Of a type which a minimum of 5000 examples
have been manufactured world wide, or;
(3) Automobiles which otherwise do not comply
with (1) and (2) above but which have been
recommended by NASSA and approved by
CAMS. Cars which are presently so approved:
• Toyota MR2 AW-11 only when fitted with
normally-aspirated reciprocating engine (of up
to two litres) or twin-rotor rotary engine. Such
vehicles, where issued with a log book prior ro 1
August 2002, may continue to compete in midengine
format with the engine to the rear of the
midpoint of the wheelbase until 31 December
2007.
• Nissan 300 ZX
Note 1: Mid engine cars will only be eligible where the
complete engine is positioned forward of the midpoint
of the wheelbase.
Note 2: Manufacturer supplied optional body kits, where
each component is identified by a manufacturers part
number, will be considered for approval by NASSA and
CAMS, each being evaluated on its merits.
Note 3: In all cases the base model of each eligible
vehicle will be the reference for wheelbase, track width,
maximum width and length of coachwork.

(iv) Front doors: Original front door frames must be
retained and must be unchanged in the areas
not covered by the original door trim. All
window regulator mechanisms may be removed.
Original front door hinges and catches must
be retained. Internal anti-theft locks must be
rendered inoperative.
(v) Rear doors: On four-door cars, the door skins of
the rear doors may be made integral with the
surrounding bodywork. On cars where the
door skins do not extend around the window
frame the original appearance and shape of
window frame trims must be retained. The rear
mudguard flares may extend over part of the
surface of the door skin. The area of coachwork
under the flare, which may include part of
the “C” pillar, may be removed. If the original
external door handles on rear doors are removed
the resulting aperture must be filled.

4.4 Engines:
(i) Engine and ancillary equipment is free, provided
that:
• the engine block is derived from a car eligible
under the provisions of Article 2(i) to (iv) hereof;
• engines from vehicles eligible under Article 2(v)
will not necessarily be eligible. However such
engines if deemed acceptable by NASSA will be
recommended to CAMS for approval.
• the road use mass produced three rotor rotary
engine assembly is acceptable (Mazda 20B).
• the engine is located in the same general area
as envisaged by the manufacturer of the body.
In rear-engined cars the engine must be in the
original location relative to the rear axle.
• It is permitted to use a cylinder block
manufactured by an aftermarket supplier
provided that:
(a) it is an identifiable replacement for a
permitted, original equipment cylinder
block;
(b) the centrelines of the crankshaft,
camshaft, and lifter bores are in the
same relative positions as per the original
equipment cylinder block; and
(c) it is made from a ferrous material.
(ii) Engines mounted in front or rear (subject to
the above) may intrude into the space originally
intended for passengers, save that no part of the
cylinder block may extend across a line drawn at
right angles to the longitudinal axis of the vehicle
at a point halfway between the front and rear
wheel hub centres.
(iii) To establish total engine capacity.
• A multiplying factor of 1.30 applies to
reciprocating engines with more than two valves
per cylinder if the swept volume exceeds:
• 2500cc if normally aspirated
• 1500cc if fitted with Forced Induction.
• A multiplying factor of 1.7 applies to forced
induction engines.
• A multiplying factor of 1.75 applies to rotary
engines.
(iv) The maximum engine capacities are:
• Naturally aspirated two-valve/cylinder 6000cc
• Naturally aspirated multi-valve 4615cc
• Naturally aspirated rotary engine 3428cc
• Forced induction two-valve/cylinder 3529cc
• Forced induction multi-valve 2520cc
• Forced induction rotary engine 2016cc
5. FUEL
Only fuel as defined by CAMS may be used (see
Schedule G).
6. WHEELS AND TYRES
The complete wheel (tyre + wheel + flange)
maximum width 14.5” (all measurements must
be made with at least 1.8 bar pressure in the tyre).
7. ELECTRICAL SYSTEM
The original external shape and location of
all lighting and signalling equipment must be
retained. If original headlamps and turn indicators
are not used, their replacements may be
blended with the surrounding coachwork. Front
lighting and signalling equipment need not be
functional. For vehicles with retractable headlights,
the external shape shall be determined
to be that attained whilst the headlights were in
the parked position. Tail lamps and brake lamps
must remain operable, with a minimum power
of three and 20 Watts respectively.
The location of the battery must be marked
by a blue triangle (sides of 150mm) on the
coachwork.
8. MINIMUM RACING WEIGHTS
5101 – 6000cc 1125kg
4501 – 5100cc 1050kg
3551 – 4500cc 975kg
2501 – 3550cc 900kg
2001 – 2500cc 800kg
1601 – 2000cc 780kg
1301 – 1600cc 730kg
up to 1300cc 680kg
Note. These are minimum racing weights for rear wheel drive
vehicles, and include the driver. Front Wheel Drive: subtract
50kg from the above weights

blimpyboy
08-11-04, 09:46 PM
Cheers dattoman, was just a curiousity i had :)

However, it says the engine must be mounted in the same general area as stock... So why have i seen corollas with midmount rotarys and such??

dattoman1000
08-11-04, 10:02 PM
Its open to some interpretation

Have a look at the engine position in mine.
Front of rocker cover is level with that bar infront of A pillar.

Nafe
08-11-04, 11:23 PM
I think it means you can't turn a front engined car into a re-engined car.
The line between front mounted and mid-mounted is somewhat blurred though :)

itsnotagsr
09-11-04, 07:57 AM
Suprises me that the AW11 MR2 gets a special mention!

Nero
10-11-04, 03:39 PM
well there will always be controversy