Tony Martyr Posted August 10, 2001 Share Posted August 10, 2001 1600 K series fitted with QED TBs and 4:1 Caterham exhaust with 6 inch silencer, no CAT. Taken at 0.5 metres from exhaust outlet at 45 degrees from pipe end at same level. Idle = 74.5 dBA 2000 = 82.4 dBA 3000 = 88.7 dBA 4000 = 92 dBA 5000 = 95.8 dBA 6000 = 103.5 dBA Calibrated meter and test in accordance with MSA blue book. Link to comment Share on other sites More sharing options...
captain chaos Posted August 10, 2001 Share Posted August 10, 2001 Vx 2L with 48's/K&N's & 4:1 comp exhaust. 5,000 rpm gave 101.4db at Oulton last Saturday. Link to comment Share on other sites More sharing options...
Rob Walker Posted August 12, 2001 Share Posted August 12, 2001 Tony I ran last year with identical spec including the six inch box and measured around 94dba at Castle Combe 4500rpm which is not too far away from your results. Link to comment Share on other sites More sharing options...
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