The Houston Rev It Up video sounds and positive responses
made me reach for my C&D comparo where at full throttle and idle
the dBA readings achieved average and 70 mph cruising only 1 dBA higher than average. Of coarse it is the turbine like sound
and free-reving that make it so enjoyable. Most of the engineering is to eliminate as much of the sound as possible.
The engine rpm @ 60 mph in top gear is said to be 3100.

Here are SIX technologies that deliver passenger comfort with low intrusion of vibration, wind noise, etc:
1.)ist time use of counter-rotating gear & dynamic balanced rotors.
2.)mode control panels on bottom of car
3.)straight (from side or top) line pwertrain layout
4.)lengthened engine & diff. mount spans (significant vs. RX7)
5.)no floor mount drive shaft support
6.)lengthened multi-link (5) rear to a six rubber mount
stiff subframe based suspension. up front strong chassis subframe.

Now go to thread "Houston Rev It Up" and enjoy those engine sounds! Thanks Eccles.

Originally posted by gord boyd
Now go to thread "Houston Rev It Up" and enjoy those engine sounds! Thanks Eccles. By the way, I forgot to mention that both front windows were fully down during that run, thus increasing the aural enjoyment. :)