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Discussion Starter · #1 ·
F-150 EcoBoost Lariat 4X4 Supercrew 3.31 gears,0-60 6.2 seconds,1/4 mile 14.8 at 94 mph.
2014 Silverado 1500 LTZ Z71 4x4 Crew Cab 5.3 3.42 gears,0-60 6.7 seconds,1/4 mile 15.3 at 92 mph.
Ram 1500 Laramie Longhorn 4x4 Crew Cab,Hemi,3.21 gears,0-60 7.1 seconds,1/4 mile 15.6 at 88 mph.

What's with the Hemi's claimed 395 horsepower and 407 lb.ft.of Torque rating?

This test 15.6 at 88 mph in the 1/4 mile and the Motor Trend 2013 Truck Of The Year 15.4 at 88.6 mph.

Later Mark.
 

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I saw another member posted his 1/4 mile times (14.9 @ 88). He had 3.31s, 4x4 Supercab. The times were within 1/10th but his trap speed was 6 mph less, which could be due to a number of factors.

But, for a truck, the Ecoboost's times are very impressive. Especially from a tine 214 c.i. V6.


BTW, how was the rest of the article? Would you recommend buying the magazine?
 

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Discussion Starter · #3 ·
I ran a 14.90 at 91.73 mph with my bone stock 2013 Supercab 4X4,EcoBoost with 3.31 gears on Sunday.The rest of the article was pretty good although they said the ride and steering wanders on the freeway on the F-150.They rip on the Hemi and the 8 speed transmission in the Ram and mention how much better the Power and Torque on the EcoBoost is over the Hemi.

Later Mark.
 

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I reckon them Hemi 3.21 gears would make a heap of difference. It should beat the GM anyway.
 

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naaaa!
3.21 is still not a truck gear
my buddy is a hemi guy to the core and their head design is where its at.
the flow capabilities for naturally asperated is crazy, even better than alot of aftermarket stuff for ford and chevy.
 

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naaaa!
3.21 is still not a truck gear
my buddy is a hemi guy to the core and their head design is where its at.
the flow capabilities for naturally asperated is crazy, even better than alot of aftermarket stuff for ford and chevy.
I have to agree with you, probably for ALL the trucks. They should have used a ratio that is the most commonly and used them in all the trucks. Where I live, most of the Ecoboost trucks had 3.73 rear ends when I bought my truck last month. I had to look around to find an Ecoboost truck with 3.55s.
 

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i was actually looking for the 3.73 gears and couldnt find them here i know another guy that had the 4.10 option on his and that gear ratio makes a big difference in how hard the truck pulls
 

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That is a crazy comparison given the gear ratio but it is interesting to see how each truck did and most interesting thing to me is the difference the gearing made for each truck when compared to the higher gearing we saw with pickup trucks.com results. I agree with the Hemi flow but figured it would have faired better given the 8spd tranny but having the tq higher in the rpm might of played a factor who knows interesting read. Also surprised they ripped on the Hemi and tranny so much... Eco still impresses me nonetheless
 

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Still, those kinds of numbers for a truck impress me.
 

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i was actually looking for the 3.73 gears and couldnt find them here i know another guy that had the 4.10 option on his and that gear ratio makes a big difference in how hard the truck pulls
In the past, I would have gone with 3.73s in a heart beat. But I was hoping for better fuel economy with the 3.55s yet still having reasonable performance. And, I am quite pleased with the overall performance. Having a 2nd gear that works past 75 mph is nice.

I drive "pure city" on a daily basis and I'm lucky if I can hit 40 mph and mostly hills. Worst, I don't even live 10 miles from work, so my engine just BARELY gets properly warmed up. Needless to say, under those conditions my gas mileage sucks ... It sucks with whatever vehicle I drive (except maybe a moped). But every second week I take a long "highway trip" to visit family (and blow out some carbon). That is where I am hoping the 3.55s will help.

I really haven't had a chance to do any highway driving yet (still breaking in the truck) ... but I am hoping it will help. I'll know shortly ;)
 

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Discussion Starter · #11 ·
I really think the 3.55 gear is worth 2 tenths in the 1/4 mile over the 3.31 gears.I ran a best of a 14.68 at 93.7 mph with the 2011 F-150 Supercab 4X4 with EcoBoost engine 3.55 gears.The 2013 F-150 Supercab 4X4 with EcoBoost engine and 3.31 gears i have now has ran a best of a 14.88 at 90.83 mph in April and a 14.90 at 91.73 mph on August 4th.I do think with the 3.31 gears i do get a little better mileage then the 2011 with the 3.55 gears.

Later Mark.
 

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My fx2 crewcab came with 3.15 gears How much slower would my truck be compared to the other gears?
 

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3.15 is the fastest imo and from what I seen with my own eyes

Sent from my SAMSUNG-SGH-I337 using Tapatalk
 

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I really think the 3.55 gear is worth 2 tenths in the 1/4 mile over the 3.31 gears.I ran a best of a 14.68 at 93.7 mph with the 2011 F-150 Supercab 4X4 with EcoBoost engine 3.55 gears.The 2013 F-150 Supercab 4X4 with EcoBoost engine and 3.31 gears i have now has ran a best of a 14.88 at 90.83 mph in April and a 14.90 at 91.73 mph on August 4th.I do think with the 3.31 gears i do get a little better mileage then the 2011 with the 3.55 gears.

Later Mark.
I ran best 14.53 at 94 stock 3.15 gears.

Ran against a 3.55 2wd running 14.60s he also stock.

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