Quote:
Originally Posted by rangercarol
I read many of the notes on reducing external noise and see many different approaches. One thing I hate to do is spend a lot of time and money on a project and then be disappointed with the results.
Has anyone ever had an opportunity to see what has been done on the G37 to make it quieter? It would seem that it would be really helpful to know where the differences are between the 370Z and G37.
rangercarol
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Just the fact that the G37 isn't a hatchback with no rear seat probably accounts for a 10 db or more difference. I had a G35 and on occasion when I would have the rear seat folded forward to allow large items in the trunk, the increase in cabin noise was quite noticeable. I believe the G37 has an aluminum hood like the Z, but when you also add aluminum doors and a hatch to the Z you are going to get noise increases. Plus the tires on the Z are major noisemakers, especially if you live in an area with grooved freeways surfaces. When I hit a patch of smooth asphalt on the freeway the drop in noise is startling.