What's Your dB?

Steve 110

Member
75 db at 70 on freeway with ac on.
The type of road surface also affects the reading.
South African 3.5110v8 lt77
 

Frobisher

Well-known member
For comparison, 1995 D1 auto, with NIOSH app on my iPad held on the cubby.

At idle: 55 dB
60 mph windows closed: ~77 dB
60 mph windows open: ~81 dB

I thought it would be louder, but that seemed to be about the average reading over several minutes.
 

RBBailey

NAS-ROW Addict
Callsign: KF7KFZ
Center/left of dash, from a suction cup mounted Ram mount off the bottom of the windshield.
 

RDavisinVA

Technical Excellence Contributor
In the winter with the windows up, you can have a soft spoken conversation or talk on a cell without any noise interference at 70 MPH.
This is with the Chevy 292 Inline 6, but no idea what the DB level is.
 

RDavisinVA

Technical Excellence Contributor
Before I got use to the Chevy 250 was in the process of ruining a starter because I tried to start the engine when it was already running because you couldn't hear it.
Mine are very low as you can have a soft spoken phone conversation on speaker in a 110.
 

Norton

Well-known member
Interesting thread tried out the app yesterday averaged about 80db at 65mph with my straight pipe 2.8 Cummins.

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