Revelations
While driving through some awesome back roads today, I was impressed with
the grunt that this little inline 6 offers up so low in the RPM range. Wait
a second...
I think i have 3.91 gears (stock gears are 3.62). I just went back to
my data/video runs to get the mph and rpm info (see image below), and
entered the data here:
The tires on the track are 285/30/18.
Select M3 for the tranny gearing.
My data says at 8000RPM, I was at 91.3 mph.
If I had stock gears, the site says I'd be at 97 mph in 3rd gear.
When i switch to 3.91 gears on the site, it shows 90.15 in 3rd, which better
matches up to the speeds I'm seeing.
Also explains why I was on the rev limiter at autocross at 57 mph in 2nd
gear. 37 seconds in here:
and might explain why there is a hum/driveline noise in my car...aren't
steeper gears noisier? mine were in my firebird/camaro days.
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