BriSCA F2 Stock Car Rule Changes for 2010
1) Maximum inside weight to be 53% at all times. This will be checked on a random basis and as with total car weight, first weigh will be free of penalty. The car will be weighed without the driver, but must be presented in racing condition in accordance with standard rules for car weighing - i.e. cars are not permitted to be changed in any way, except at shale tracks where excess shale can be removed, under supervision.
2) Batteries and fuel tanks (a) to be fitted next to the chassis - there must be no gaps between outside edge of chassis rail and inside edge of fuel tank. The outer edge of the fuel tank must be a MAXIMUM distance of 9" from chassis rail and a MINIMUM distance of 10" from outside edge of nerf rail to outside edge of fuel tank must also be achieved (a drawing will be provided in the rule book, if unsure, please contact a member of the technical committee. If in doubt, please ask.)
(a) where a fuel tank is fitted behind the seat, it must have a complete firewall
3) Maximum car weight to be increased to 700kg and minimum 640kg.
4) Steel fuel tanks only may be used, 2mm thick minimum.
5) All exhausts must terminate on the same side as the engine exhaust ports and must not cross the center line of the chassis
6) Cars using rear of cab mounted style wings must paint the cab roof in grading colour.
7) A maximum of four shock absorbers be used on each car, one per wheel
8) When viewed from the side, the chassis rails must be above the centre line of the wheels over their entire length
9) The outer edge of the nerf rails is to be made of steel, which has a minimum thickness of 2.5mm and a minimum size of 25mm od or square. Nerf rails must be of symmetrical appearance on both sides of the car (when viewed from above) . Any struts, or supports, may be of lighter material.
10) Steel valve spring caps to be permitted.
11) 2 litre Pinto blocks maybe overbored to 1.5 mm or 60 thou.
12) A steel flywheel is under development which is proposed for use in all 2 litre Pinto and 1800 Duratec powered cars as an option to the standard item-details to follow.