Both too soft and too hard shift is bad for the transmission, but how can I know if it's at optimal firmness? James told me it's different for different cars, and only experience can tell. I think at least for a specific transmission there should be a preferred length of time for the RPM to drop. I checked the two tunes he sent to me. It went from softer than stock to harder than stock (see pics below). The harder one seems better to me, but I am not sure if it's too harsh. Another question is whether it's normal that the length of time for the RPM to drop for different gears is different.
I asked him to lower shift RPMs. They are lower now, but the engine sounds louder with the same RPM. Is it possible that the car can be programmed to just display RPM lower? The RPM stays at around 2000 on highway (60 to 80 mph). Is it normal? Is it possible to program it lower to improve fuel economy? For example, program it to shift to higher gear. Maybe this may make the RPM too high at high speed? Since the car is hardly driven at more than 80 mph, maybe that's not a concern?
I wonder if higher shift RPMs with light throttle in some cars with 6F35 transmission is a sign of potential problems. What to look at in the datalog to check if there are problems?
My car is 2012 Ford Fusion V6 3.0 with 6F35 transmission.
Stock tune:
James old tune:
James new tune:
I asked him to lower shift RPMs. They are lower now, but the engine sounds louder with the same RPM. Is it possible that the car can be programmed to just display RPM lower? The RPM stays at around 2000 on highway (60 to 80 mph). Is it normal? Is it possible to program it lower to improve fuel economy? For example, program it to shift to higher gear. Maybe this may make the RPM too high at high speed? Since the car is hardly driven at more than 80 mph, maybe that's not a concern?
I wonder if higher shift RPMs with light throttle in some cars with 6F35 transmission is a sign of potential problems. What to look at in the datalog to check if there are problems?
My car is 2012 Ford Fusion V6 3.0 with 6F35 transmission.
Stock tune:
James old tune:
James new tune: