We are going to run the car in the "HRDC Touring Greats" Series so permissable modifications are determined by the technical regulations of that series.
In principle, the engine capacity can be increased by 25% so we will have a 1500cc engine built. Internals are free, head castings are to be as original, induction manifolds are free and Webers are permissible. Being new to Beetles we need to research best options on engine builder or component supplier if we build our own but no doubt a steel crank, rods and forged pistons will be required.
We have to retain the swing axle rear suspension but our fabricator was involved in the build of a very successful Formula Vee car which had some unique suspension mods which we will introduce into the car. Gearbox will have Hewland internals and a LSD.
Front suspension again will be heavily modified within the spirit of the regulations, solid front disc brakes of a type similar to later production cars are allowed.
We will install a T45 full cage, welded to the chassis and then bolted into the sills of the bodyshell. Full trim needs to be retained.
The cars run on historic type Dunlop Cr65 tyres.