- First Name
- Cal
- Joined
- Oct 13, 2021
- Threads
- 27
- Messages
- 6,065
- Reaction score
- 11,908
- Location
- Ohio...but I'd rather be in Boone.
- Vehicle(s)
- 2025 Hybrid AWD Lariat
- Engine
- 2.5L Hybrid
Somebody watches Sarah N Tuned.....The ecoboost is rated at 277 ft/lbs of tourque. Correct me if I'm wrong, but I believe the transmission is rated for 250 ft/lbs. I would assume that means if you're constantly hammering on the throttle, you will eventually break the transmission.
I believe the 8F35 is indeed only rated to 350nm or roughly 258 ft lbs of torque - which was a surprising choice over the larger 8F57 that can handle 575nm or roughly 475 ft lbs of torque.
The 8F57 would have been overkill in the Maverick and I'm not aware of the 8F57 in any 2.0 EB - although it was used in a Ford Edge EcoBlue bi-turbo.
It is also pretty clear that you really aren't getting all of the 277 ft lbs of torque available to you. For the probably 80-90% of Maverick owners who fill on 87 - they are within the power limits of the 8F35.
For those of us who fill with 93 - the engine will detune when nearing heat soak and the transmission is tuned for fuel efficiency not speed - so it likely also will let the PCM know to turn down.
Last I'll say is that the 8F35 and 8F57 share quite a few parts with the 10R series transmissions, and the 8F35 shares many design features of the 8F57.....where as the 8F24 is a more simple and less robust design.
In the - the transmission likely is the weak point in the drivetrain but that hardly means it is a failure point that us owners should be concerned with every step of the way either.
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