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Noise Testing at HiTech Motorsports Inc. 19-Jun-15 <br /> Location <br /> Location Description Base Notes W/Dyno Notes <br /> Number <br /> 1 Inside Chassis Dyno 123 dB Place next to exhaust fan behind test <br /> Room While Testing vehicle <br /> Outside chassis dyno <br /> 2 70 dB Noise from highway most prevalent 99 dB 24 dB reduction <br /> garage door <br /> 3 SW Corner of property 50 dB Protected from noise by vegetation, 70 dB 53 dB reduction <br /> fence,and building <br /> 4 <br /> Center of Fence Along 62-75 dB highest reading occurred during bird 65 dB Engine noise only,minimal highway <br /> West Property Line call in tree near meter traffic to add to reading <br /> 5 NW Corner of Property 63 dB Loud traffic noise from Highway 10 60 dB Highway noise very minimal, <br /> essentially a pure reading of dyno <br /> 6 Near Jerry's Auto Fence <br /> 60 dB Quiet period from Highway 79 dB Obviously louder.Sound directed <br /> 84 dB Diesel delivery truck at Jerry's towards hwy&away from res. <br /> 7 Move vehicle from garage 83 dB Measured at property line,vehicle <br /> to test area started and driven around building <br /> 8 Front of Building 80 dB Measurement of general highway <br /> noise at front of building <br /> Noise Testing at HiTech Motorsports Inc. 1-Jul-15 <br /> Location <br /> Location Description Base Notes W/Dyno Notes <br /> Number <br /> 1 Inside Chassis Dyno 120 dB Place next to exhaust fan behind test <br /> Room While Testing vehicle <br /> Outside chassis dyno <br /> 2 70 dB Noise from highway most prevalent 92 dB 28 dB reduction <br /> garage door <br /> 3 SW Corner of property 55 dB Protected from noise by vegetation, 68 dB 52 dB reduction <br /> fence,and building <br /> 4 <br /> Center of Fence Along 51 dB light highway traffic 62 dB Only noise from vehicle testing,light <br /> West Property Line traffic <br /> 5 NW Corner of Property 53 dB light highway traffic 64 dB vehicle testing max <br /> 6 Near Jerry's Auto Fence 60 dB Quiet period from Highway 75 dB train whistle right after vehicle test <br /> was louder by 0.2 dB <br /> 8 Front of Building 85 dB Measurement of general highway <br /> noise at front of building <br /> SW Corner of Mickelson 53 dB Taken at corner of house nearest 57 dB Difficult to distinguish between <br /> Property baby's bedroom highway traffic and vehicle test <br /> Near Mickelson Patio Difficult to distinguish between <br /> Door 52 dB Taken at the backside of the house 60 dB highway traffic and vehicle test <br />