[SentraSE-R]

My xB has the following gear/rpm/speed relationship:

gear....rpm....speed
2nd.....1500..10 mph
2nd.....2500..20 mph
3rd......1500..15 mph
3rd......2500..30 mph
4th......1500..25 mph
4th......2500..40 mph
5th......1500..30 mph
5th......2500..50 mph

On flat ground, 1500 rpm to 2500 rpm is 3 seconds in 2nd gear, and 8 seconds in 3rd and 4th gears. I usually P&G at higher rpms in 5th gear, to accommodate highway speeds - typically 45-55 mph in the xB, but 50-65 mph in the SE-R. Those accelerations both take about 8 seconds. The times go up on uphills, and down on downhills. I suspect your high-revving GSR might like 1700-2800 rpm better, probably at the same rate of acceleration.

An Ultragauge or Scangauge will quickly pay for itself. I've saved over $1700 in 2-1/2 years compared to the EPA combined estimates.

I do a lot of EOC between pulses. Compared to the 3-8 second pulses, my glide times are typically 30 seconds 20-10 mph, 40 seconds 30-15 mph, 24 seconds 40-25 mph, and 16 seconds 55-45 mph.

I start gliding to stops 3-4 blocks before them, unlike most drivers who still have their feet on the gas pedal half a block from the stop. I also shut the engine off at all stops where I expect to be there more than 7 seconds.

So, my advice is slow down and conserve momentum.

I pass through Santa Barbara a couple of times/year, on the way to my parents' home near Ventura, and/or my son's in Camarillo. Perhaps we can coordinate a clinic, and/or I can loan you my Scangauge for a couple of days on one of those trips.