[wyy183]

FWIW - The MT Fit does approx 3900 rpm at 80 mph. My AT Fit does approx 2900 at 80 mph.

I had a '90 CRX Si that did 4000 rpm at 80 mph, which is what the S-2000 does as well in top gear.

On my CRX I was wanting for an extra gear on a regular basis. I had an '89 CRX DX which had the same tranny with a different final drive and it turned 3500 rpm at 80 mph, and was much more relaxed.

If you're really bored and are good at spreadsheets you can calculate all this out if you know the tire size, gear ratios, and final drive ratio.

For your amusement, here is the calculation to get speed based on a given RPM:
1. (tire width in mm / 25.4 inches per mm * aspect ratio / 100 ) * 2 + wheel diameter = tire height

2. tire height * rpm / 12 inches per foot / 5280 feet per mile * 60 minutes per hour * pi (3.1415927) / final drive ratio / gear ratio = speed

You can set it up on a spreadsheet and just put in the speed that you want and it will show you how fast you would be going. I have it set up for individual gears and it shows how fast I would be going in those gears.

Have fun!