my 2014 f150 3.5 ecoboost tach is not marked with a red line. what is the factory redline on these cars.
I have used the redline as a guide in all my cars since 1968 and they have hit it often. although my Ranchero has gone from 5600 to 6800 since I first bought it after rods, cam, crank, pistons and valvetrain changes.
Tom J.
1968 Ranchero Scode, 4spd, ported edelbrock heads,comp 292 cam, 3.91 detroit locker, performer RPM, 750 cfm double pumper.
2013 Escape 2.0l ecoboost
2014 Ford F-150 3.5l ecoboost, trifecta tonneau cover
1994 4.6l TBird

 

I found the answer on another ECOBOOST forum with a different search topic. it is 5800 to 6200. the pcm starts it at 5200 and ensures it by 6200. my question now is however if you have a tune the pcm may not stop it. I also feel there is a redline determined by engine internals like connecting rods and valve train. I will take it as 5800 and keep the engine safe. just like my ranchero I set it at 5800 with the tach shift light, this ensures a 6200 shift . It is expensive to blow up engines.
I need to find a drag strip close to Brownwood TX. I need to exercise the 390 Ranchero and chk out the F-150. The escape did 14.51 in the quarter @ 93 mph. I am 66 (wife say 19 when it comes to vehicles) but like to have a little fun every once in a while.