Mike Molloy Posted June 17, 2009 Share Posted June 17, 2009 Can anyone confirm what the current noise limits are for bike engined cars at sprint/hillclimb events? Do they vary from venue to venue? Ta. Link to comment Share on other sites More sharing options...
Mark Durrant Posted June 17, 2009 Share Posted June 17, 2009 Mike The Blue Book states 108dB however, some venues are stricter on noise such as Goodwood who specify 105dB. Mark D Link to comment Share on other sites More sharing options...
peterg Posted June 17, 2009 Share Posted June 17, 2009 Yeah and Goodwood also specify at 3/4 maximum revs rather than 2/3rds that the Blue book says... 😔 Link to comment Share on other sites More sharing options...
Mike Molloy Posted June 17, 2009 Author Share Posted June 17, 2009 Any idea how the scrutineers determine "maximum rpm" for a BEC? Obviously it no longer has the standard clocks with a handy red line for reference... Link to comment Share on other sites More sharing options...
peterg Posted June 17, 2009 Share Posted June 17, 2009 You tell 'em mines revs to 11,250 but I tell them 10k... but even at 'only' 7500 my car was too loud for Goodwood as it comes on cam at 7000 - brrr, brrrrrr, brrrrrrrrrr, brrrrrrrrrrrrr, 7k Waaaaaaaaaaaaaaahhhhhhhhhhhhhh 😬 Link to comment Share on other sites More sharing options...
Mike Molloy Posted June 17, 2009 Author Share Posted June 17, 2009 Peter - what engine do you have? Link to comment Share on other sites More sharing options...
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