Quote:
Originally Posted by j9fd3s
oh and #3 back to the mazda rotary. we make the 1000mile round trip to sevenstock every year, and its almost the only drive i get that's almost 100% freeway, and having taken every car from a stock 79, to a 20B FC, to an FD, i've noticed that the FD and the SA both had an rpm range where they got better mileage. the SA gets the best mileage (23-25) in the 3500-4000rpm band. which in 4th puts you right around 65, and in 5th is like 80. driving @3000rpms, actually gets WORSE mileage, although not by a lot, and going over 4k, it gets bad quickly.
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Another data point...
Several Sac to Vegas and back trips netted me 400 miles between gas fill-up's.
1987 Turbo II on a (reprogrammed) stock ECU
16.6 gallon full capacity fuel tank, but filling up at 14 gallons each time.
That makes it 28.5 miles per gallon.
Key is to drive run under the secondary injector crossover point at 3,800RPM, which is about 75mph - 80mph on my car.
-Ted