Hi blokes, i've just built and logbooked a 70 swingaxle rallycar in brisbane. To answer your question,not a lot!!!!YES BIX i saw the thread......your round oz event will be harder than u think! concentrate on COLD oil,removing lots of exhaust,and the one everyone forgets,supply LOTS of COLD fuel.engine specification will ultimatley be determined by the supplementy regs for the event and which classes u can run under,PRC HISTORIC,CLASSIC etc.running other events after may only require minor mods to build a JET!! i'm runnig kybs at the front, modified hyundai terracan fronts at the rear,1600 std barrels,std rods, 69 crank,39/35 valves on heavily ported heads,twin 44s,engle 120,light flywheel. std ratios with home made phantom grip lsd,(WORKS GREAT!!!)oil cooler over gearbox with thermo fan,std brakes(well u want to go fast don't u!)i does 100mph indicated with 14in delta mags and revs to 5800 before valve bounce on std valve springs pulling hard all the way. posting pics here is a pain contact me on
david.scharf@bigpond.com.au for some pics ,i'll email. running kcf short course rally end of feburary at jimna in brisbane. i'll help anyone interested in running more beetles in ralllies.