Cruise RPM in 7th and 8th gears for A10

[TORQUERULES]

I have a 2019 Ranger which of course has a very similar drivetrain as the Ecoboost Mustang (though our longblock has borrowed many parts from the Focus RS engine) and I often find myself locking out 9th and 10th and driving that way (we can lock gears out, not sure Mustangs can). I was just wanting to compare cruise RPM in 7th and 8th with you guys. In 7th I am at 60mph at around 2500rpm (actually closer to 2450/2475) and in 8th it is around 2000rpm at 60mph (actually closer to 2050). So, what RPM do you guys hit there and what is your gearing? Of course, I have have 32inch tires and 3.73 gears.

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[Coyote Chase]

I have a 2019 Ranger which of course has a very similar drivetrain as the Ecoboost Mustang (though our longblock has borrowed many parts from the Focus RS engine) and I often find myself locking out 9th and 10th and driving that way (we can lock gears out, not sure Mustangs can). I was just wanting to compare cruise RPM in 7th and 8th with you guys. In 7th I am at 60mph at around 2500rpm (actually closer to 2450/2475) and in 8th it is around 2000rpm at 60mph (actually closer to 2050). So, what RPM do you guys hit there and what is your gearing? Of course, I have have 32inch tires and 3.73 gears.

I don't do a lot of street driving, but when I do, I use sport mode and never let my RPMs drop below 2500, if I do, I'll down shift before accelerating. With 3.15 gears, I can reach 120 mph on the track, in 7th gear, so I don't use 8, 9 or 10.
As far as cruising on the highway, I shift from 6th to 7th at 3500 RPM and try to keep it around 3000 RPM when traffic and conditions permit.
Gas (or ethanol) is a lot cheaper than a new engine and if not luging my motor, will reduce my risk of low speed pre-ignition, then I'll do it.
However! If I were running 3.73 rear gears... I'd have to rethink my driving habits.

 

[CurtisH]

I have a 2018 Ecoboost PP with 3.55 gears and 255/40-19 tires. At 60, 7th gear is 2700 rpm and 8th is 2300.

 

[TORQUERULES]

I don't do a lot of street driving, but when I do, I use sport mode and never let my RPMs drop below 2500, if I do, I'll down shift before accelerating. With 3.15 gears, I can reach 120 mph on the track, in 7th gear, so I don't use 8, 9 or 10.
As far as cruising on the highway, I shift from 6th to 7th at 3500 RPM and try to keep it around 3000 RPM when traffic and conditions permit.
Gas (or ethanol) is a lot cheaper than a new engine and if not luging my motor, will reduce my risk of low speed pre-ignition, then I'll do it.
However! If I were running 3.73 rear gears... I'd have to rethink my driving habits.

That's why I lock out gears. Lugging can lead to LSPI. In warmer weather I run an E50 tune, but in the winter I run 93 with Boostane when I can. Our E85 varies too much in the winter.

I use Sport mode often, but it is pretty aggressive with RPM holding in the Ranger. Tow mode is a little better. But for more open road I use normal and lock out 8-10 or 9 and 10.

Thanks for the input!

 

[TORQUERULES]

I have a 2018 Ecoboost PP with 3.55 gears and 255/40-19 tires. At 60, 7th gear is 2700 rpm and 8th is 2300.

Thanks! Great information. Where about does it shift in normal and sport in just average throttle application? Just wondering about shift points too. I have my WOT set at 6000 with my tunes as my truck only started to fall slowly off after 5500.

 

[CurtisH]

Thanks! Great information. Where about does it shift in normal and sport in just average throttle application? Just wondering about shift points too. I have my WOT set at 6000 with my tunes as my truck only started to fall slowly off after 5500.

Off hand, I don’t remember. I do know that normal mode shifts much too early. I’ll pay attention next time I drive, which will probably be this evening.

 

[TORQUERULES]

Off hand, I don’t remember. I do know that normal mode shifts much too early. I’ll pay attention next time I drive, which will probably be this evening.

Thanks!

 

[CurtisH]

Okay, ”average“ throttle can vary quite a bit. I just got back from running a couple of errands. In normal mode, light/average throttle usually results in shifts occurring around 2200-2500 rpm. In sport mode, it’s more like 2700-3000 rpm. Adding just a little more throttle will push it to 3500.

Sport mode basically doesn’t let the engine go below 2000 rpm unless, of course, you’re stopping. Normal mode will let the engine run as low as 1300 rpm. For example, it will shift into 10th gear at 43 mph if I am driving at that speed. Personally, I think that is way too low. That’s why I drive with The transmission in sport mode or switch the drive mode to sport+ most of the time.

 

[TORQUERULES]

Okay, ”average“ throttle can vary quite a bit. I just got back from running a couple of errands. In normal mode, light/average throttle usually results in shifts occurring around 2200-2500 rpm. In sport mode, it’s more like 2700-3000 rpm. Adding just a little more throttle will push it to 3500.

Sport mode basically doesn’t let the engine go below 2000 rpm unless, of course, you’re stopping. Normal mode will let the engine run as low as 1300 rpm. For example, it will shift into 10th gear at 43 mph if I am driving at that speed. Personally, I think that is way too low. That’s why I drive with The transmission in sport mode or switch the drive mode to sport+ most of the time.

It sounds like the Ranger is pretty much the same. I find that interesting considering the different intended use of each vehicle. I agree that the way the transmission is geared the RPM can get way too low in normal mode in higher gears. Thanks for the input.

If they weren't so expensive, I would experiment with putting the 4.70 gears from the Bronco in the Ranger. It might actually make 9th and 10th gears somewhat useful.

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