at our local track in Australia our club rules have been set to use the Muchmore 17.5 fixed timing motor. Another local club also follows these rules with either the 32/36 Rush/Volante tyres and an FDR of 3.5.
Our first night we had 7 drivers which I thought was not bad for our standards. We are currently having it once a month and we will see how we go in the future.