Who cares about the outdated Lincoln Navigator. It's rating is on 93 octane. If you want the same rating on the F-150 just fill up with 93 octane.

 

I guess my point wasn't clear: Listing Peak power numbers can be misleading. Peak power numbers can mean, in practical service, next to nothing.

 

Remember in years past the first year of a new body style has carry over engines and then a year or two later they release the latest and greatest engines. It keeps the consumer always wanting to upgrade every 2-3 years instead of keeping the truck for 10 or 15 years.

 

You are kidding me right?

So you say if I go fill up with 93 Oct I am gonna gain 20hp and 40 lb ft tq?

 

That's the theory.

Not sure if it is quite that much in reality though. I bet the Navi has a slightly different tune. I would expect 10HP and 20 ft-lbs (+/-) more on 93.

 

Navigator has 380 hp so that is only a 15 hp jump. Navigator is down to one engine now so they have to make it look as good as possible until the remodel. Hence the 93 octane rating. It is not offiically published, but there is an article where a Ford representative claims a hp gain for the current F-150 on higher octane.

 

Now I can see a change to the tune being the difference here.

I dunno, I mean, why couldn't they atleast changed the friggin exhaust manifold and system on our trucks to yield a better output rating.

I would like to see that article from Ford. I find that very hard to believe...they would have marketed our trucks that way from the get go.

 

Look at it this way, the 3.5 EB in the SHO is rated at 365/365 on 91 octane, the 3.5 EB in the truck is 365/420 on 87, but the truck version has bigger turbos thean the SHO/flex/explorer sport version. I have heard the sho gets 350 hp on 87, can't verify that tho, just what I've heard.

So if you look at it as the Sho gets 350 and the truck gets 365 both on 87, why wouldn't the truck get 380 on 91, as the sho gets 365 on 91. That's a 15 hp gain by running better fuel on both engines.

As a point of reference, my wife's escape has the 2.0 EB and it's rated at 240 hp on 91, but only 231 on 87. That's a 9 hp gain out of a 2.0 liter, so a 15 hp gain on a 3.5 liter engine sounds more than reasonable.

 

What are the size(s) of the different intake manifolds?

I know in the LSx world, all the Fbody guys were envious of the truck manifolds since they held more air volume, however, they would not fit under the hood.

I am sure there are more variables other than fuels but point taken.

 

The PCM dials up the timing to match the fuel quality, more timing means more Hp. The Ram and GM trucks were rated based on the few more Hp of 93 for years

 

Thanks DMP
for pointing out the "not" so obvious to the "average" truck buyer

All about the curves, and what's hidden underneath

Cheers bro

 

Guess I misunderstood you as well. I agree that people look way too much into peak numbers versus what the actual graph looks like.

 

Does anyone have estimates on fuel economy/mpg comparisons ?

 

Ford isn't releasing anything until the EPA numbers are posted, which is likely end of Oct, early Nov.

 

DiabloSport was able to get 90hp/90ftlbs on their 93 Octane Performance Tune for 2011-2014 F-150s with 3.5L EcoBoost Engine.

There is a special going for this forum where members purchasing the I-1000 inTune get a Free OBD-II Port Cover or T1000 Trinity get a Free 2 1/16th" Gauge Pod Mount.
Tunes not tested on 2015s ...yet