FRAME / CHASSIS

1.1 Front suspensions can be fabricated but must bolt into stock location, fabricated tube control arms and K members permitted, stock front cross members may be scalloped for sump clearance. RRS front suspension is permitted for Falcons and Mustangs. In American bodied vehicles (originally LHD) substitution of local front end of similar design to standard is permitted, i.e. Holden HQ-WB front end in “55-57” Chevrolet. Steering rack conversions permitted.

APSA would like to ensure that all front suspension components are built with safety as paramount in all cases.
ANDRA safety rules apply to all cars.

1.2 Firewall must remain in standard position. Notching for distributor or rocker cover clearance only is permitted. Flat firewalls are permitted but must be in standard location. Chassis rails in engine bays may be chambered to a cross section of 60mm x 60mm or an area equaling to this amount to allow exhaust clearance. All material removed from chassis rails must be replaced with the same thickness material or thicker. This may also be the case for cars needing to notch strut towers in engine bays for pipe clearance. Chassis rails must be in standard location.
1.3 Front struts may be replaced; aftermarket products must bolt up in the factory position.

1.4 Inner rear wheel tubs may be moved inwards, full tub replacement permitted. Chassis connectors are permitted.

1.5 Standard rear suspension points must be used, rear suspension mounts maybe reinforced or fabricated in standard size, shock absorber location can be moved, and leaf springs can be moved inwards.

1.6 Coil over shocks are permitted for tyre clearance.

1.7 Rear chassis rails may be notched for tyre clearance but not moved or rerouted. Inner chassis rail cannot be moved and must remain in factory position. Any metal cut away must be replaced with the same thickness material or thicker. Special permission may be given to existing cars with rails moved if standard points are retained and tyre is within the limits, but must be checked with APSA committee.

1.8 Four links and ladder bars are not permitted.

1.9 Adjustable tubular control arms may be used on rear ends but must retain factory fixed mounting points and suspension set up. Tramp rods, Slapper bars, Caltrac bars or any other similar devices may be used. Anti roll or sway bars permitted.

1.10 Fiberglass panels are restricted to guards, nose cone, bonnet, boot lids and bumpers.

1.11 Lexan /polycarbonate windows permitted all round as per ANDRA specifications.

1.12 Must have some style of dash, original dash board may be replaced by a fabricated dash.


ENGINES

2.1 Engine blocks,
Small blocks cast iron only with standard cam and standard pan rail, max deck heights SBC 9.025, SBF 9.5, Chrys SB 9.5, Holden 8.9, LS-1 9.2, Mod motor Ford 9.0,
Factory alloy blocks permitted, eg. LS-1
Big Blocks cast iron only with standard cam and pan rail BBC 10.2, BBF 10.32, Chrys BB 10.7
Any other combinations must be standard deck height.
2.2 Maximum head gasket thickness .150"
2.3 Dry sumps are not permitted.
2.4 Transmissions must be OEM type, No Lenco’s or aftermarket clutch less type, lock up convertors are permitted, Dedenbear cases are permitted
 


WHEELS AND TYRES

3.1 Maximum diameter 15”

3.2 Maximum tyre width and height 29.5”x 12.5” as marked on side wall and in measurement, no "w" tyres permitted on max size.

3.3 Front tyres must be a minimum width of 3.5”


SUPERCHARGERS / TURBO CHARGERS / NITROUS OXIDE

4.1 Roots type superchargers are as per Pro Street Blown but are restricted to 10:71

4.2 Turbochargers are as per Pro Street Blown but are restricted to a maximum size of 94mm inducer diameter (tip-to-tip) for single turbochargers and 70mm inducer (tip-to-tip) for twin turbochargers at the point where the edge of the compressor wheel meets the inlet housing and must be of conventional impeller and housing design (non-clipped).

4.3 Single centrifugal superchargers are permitted with a maximum inlet hose diameter of 6.00in and maximum discharge hose diameter of 4.00in (e.g. Procharger F-3R-131).

4.4 Nitrous Oxide systems are restricted to a single stage. Fogger or plate systems permitted. If using direct port systems, a maximum of two nitrous solenoids, two fuel solenoids and two purge solenoids allowed. If using plate system, one nitrous, one fuel and one purge solenoid allowed. Nitrous controllers are permitted

MINIMUM WEIGHTS   including driver

MSB Big block 2800lbs
MSB Small block 2650lbs
MSB 4 and 6 cyl 2500