Quote Originally Posted by Jac Mac View Post
Was looking at manufacturers specs last nite for several different cars, they ranged from 102 to 114 dBA, but sup regs by meeting organisers in various countries contain a regulation where organisers can insist on a lower noise level...... not an easy task on that Camaro as its flat sheet underneath.
Which system of measurement Jac, by that is it as done by the world motorsport bodies where it is a set distance from the racing line under full power etc or is it by the method used by the various transport authorities around the world where it is measured at a set rpm at a certain distance from the tailpipe as there is one hellave difference in the outcome. A car at the limit on the transport authorities test system would probably hardly raise an indication on the motorsport system.