2018 5.0 373 10spd vs 2017 5.0 373 6spd
Senior Member
Joined: Sep 2017
Posts: 2,229
Likes: 613
From: Louisiana
You just re-enforced my point..thank you 
Notice how with the 3.15, second gear can hit 60mph?!! Under hard acceleration, the advantage goes to using the engines entire torque curve for a longer period in 2nd. That means in 1st and second gear, the 3.15 with the 10 speed is almost equivalent to the 3.55 with the 6 speed...... so therefore the 3.73 with the 10 speed is geared way to low... Accelerate hard and by the time you hit 60mph, you are already well into 3rd gear....this is why it is and will feel slower
Notice how with the 3.15, second gear can hit 60mph?!! Under hard acceleration, the advantage goes to using the engines entire torque curve for a longer period in 2nd. That means in 1st and second gear, the 3.15 with the 10 speed is almost equivalent to the 3.55 with the 6 speed...... so therefore the 3.73 with the 10 speed is geared way to low... Accelerate hard and by the time you hit 60mph, you are already well into 3rd gear....this is why it is and will feel slower
Last edited by w00t692; Sep 29, 2017 at 11:56 AM.
Senior Member
Joined: Dec 2012
Posts: 189
Likes: 52
From: Cincinnati, Ohio
Can we get a volunteer with a 2018 5.0 to line up side by side with this guy? I just drove a 2018 5.0 with 3.73's, and I have no idea what the original poster is talking about. I want to see how many truck lengths it puts on a 2011-17 5.0 from 0-100.
Junior Member
Joined: Oct 2017
Posts: 20
Likes: 8
Over in the drag racing forum another member went 13.33 @ 104 mph in a box stock 2018 RCSB F-150 with the 5.0 and 10-speed. That's cookin', and a good bit faster than the stock 6R80-equipped 5.0 trucks--for what it's worth.
Last edited by TripleCProductions; Oct 29, 2017 at 01:59 AM.
Senior Member
Joined: Aug 2015
Posts: 1,360
Likes: 394
From: Maine
There is a Utube video of a F150 6sp and F150 10 spd each same engines, gears, towing same weighted trailers . They start off on flat then go right into an incline hill. When the 10 spd reaches the top of the hill he's one entire truck and enclosed trailer ahead of the 6 spd tranny. I'm not good enough with a computer to post it here.
5 Year Member
Joined: Aug 2016
Posts: 227
Likes: 101
Get the 2017. The new chemical cylinder coating on the 2018 v8's as opposed to metal sleeves on the 2017's is unproven over the long run and problems abound with the 10 speed transmission - many held back from dealers after production.
5 Year Member
Joined: Feb 2013
Posts: 1,290
Likes: 336
From: Calgary, Alberta
Not about the transmission
That wasn’t so much about the transmission as the generation 1 vs. Generation 2 ecoboost engine. With an extra 50 ft/lbs of torque, I would have thought the difference should have been significantly more.
There is a Utube video of a F150 6sp and F150 10 spd each same engines, gears, towing same weighted trailers . They start off on flat then go right into an incline hill. When the 10 spd reaches the top of the hill he's one entire truck and enclosed trailer ahead of the 6 spd tranny. I'm not good enough with a computer to post it here.
5 Year Member
Joined: Mar 2011
Posts: 3,086
Likes: 552
Lower ratio/Taller gears = slower acceleration = 3.31:1
Higher ratio/Shorter gears = quicker acceleration = 3.73:1