Category 3 Chevette 2300

Category 3 Chevette HS2300

Homologation paper no 649

Permitted modifications supported by documented evidence.

Engine.  (Type 907)

4 In line. 2279cc.  97.59mm Bore 76.2mm Stroke

16V Twin overhead belt driven camshaft's running in a housing on the head.

Dry sump lubrication system is permitted.

Ignition/Electrics.

Luminition Optical trigger electronic ignition is permitted.

Carburation/Fuel system

Twin 45/48 Weber or Delorto DCOE carburetors.

Gearbox.

5 speed ZF or 5 speed Getrag

Clutch.
Triple plate clutch assembly

The fitting of a concentric clutch slave cylinder assembly is not allowed.

Back Axle.

Plated LSD.  An axle strengthening bracket is allowed.

Ratio's. 3.09, 3.45, 3.70, 3.77, 3.90, 4.11, 4.27, 4.55, 4.62, 4.89, 5.13, 5.28, 5.38, 5.8.

Suspension.

Front.

Strengthened suspension arms, alloy hub assembly.

Rear.

Strengthened suspension lower arms and links.

Brakes.

The fitting of a dual master cylinder or any other type of device providing a simultaneous action on all four wheels and divided action on two wheels is permitted providing the original brake pedal and pivot point are used.

The remote brake bias adjuster must be positioned so that it cannot be adjusted by either the driver or co-driver when normally seated in the car.

The fiiting of a hydraulic handbrake is permitted.

Front Brakes.

AP 4 Piston Alloy calipers

Vented front brake discs fitted on alloy hubs.  
265 x 21 or 25.4 mm Brake Disc Thickness

Rear Brakes. 

AP 2 Piston brake callipers.
Solid or Vented Rear brake discs     
265mm Diameter x 11 or 21 mm Brake Disc thickness

Wheels and Tyres.

The fitting of tyres with an aspect ratio of less than 70% is prohibited.

General.

Fibre glass bonnet or boot lid. Perspex side windows.

GRP front and rear bumpers.                                                                     

Alloy centrally mounted replacement petrol tank.