I wish someone who has a tuned 6.2 would chime in. I was looking at the video on 5 star tuning of the tuned 5.0. Wow!!!!!!! If the 6.2 gets nasty like that with a tune then it will be a monster!!!!

 

If everyone will chip in some $ to me, i'll be more than happy to get a tune and give my feedback

But really, there is a raptor forum that you can check out where people have used the tune. One person mentioned that he kept up with an ecoboost truck in a drag. Not OVERLY impressive, but considering the extra weight, the oversized tires, etc... Not shabby at all.

 

Agree, You talking 35" tires, squishy suspension, wider truck, etc. They are shaving nearly 1.5 sec off 1/4 mile times, very impressive.

 

I got this from another forum

this is typical max allowed throttle opening angle on any 6.2

5500 90
5500 90
5500 90
5500 90
5000 90
4500 82
4000 76
3500 60
3000 58
2500 56
2000 45
1500 37
1000 29
500 25
0 25

This information is from 5 star tuning. Its easy to see why it feels so sluggish on the bottom end. IT is severely detuned from the factory. I wonder if ford did this to make the other 2 engines shine even more, or is this how they tune all of the new engines?

 

Ford has always detuned their engines from the factory. Back in my day, the famed 427 and the Boss 429 where nothing special in factory tune, but just a little tweaking and they were awesome. It's been no different with the 5.4. A tune really wakes them up.

 

I hear ya. Yeah, in the magazines the chevy's and dodge's are usually "faster" and more "powerful", but on the street it is a different story. I learned that lesson with my 1998 f150 4.6 supercab vs. my friends 2001/2002 chevy single cab long bed 4.8. According to the magazines i couldn't mess with those new ls engines. Well it didn't go down like they claimed lol.

 

Don't quote me, but i thought I remember seeing someone who installed a boost gauge and they were seeing boost levels up to ~ 13PSI

 

First, the factory tunes the engines to prevent morons from blowing them up. They'd love to tell you to put only good quality 91+ octane gas in them, but people just wont do it. So to prevent knock and other issues, they detune the engines. It's also a matter of elevation, they ship these trucks to so many different elevations that they cant make a perfect tune for everywhere, so they de-tune it to make it work everywhere.

Second, as mentioned (i believe in this thread), they dont want to break things (like transmissions). I've learned quite a bit from my friend who's tuning his car's transmission (long story) but the simple part is that even if the transmission is strong enough, they de-tune it as well to provide the consumer with nice smooth shifts. You can change the line pressures and shift points, etc, but it makes the shifts more jerky and abrupt. Some people are ok with this, and when they get their trucks tuned they can opt for a stiffer shift, but again, Ford goes with what consumers want. Nice smooth shifts.

Do you know if that's factory boost or modded boost? 13PSI seems a little low for modded boost on a turbo'd vehicle. My subaru was ~14psi stock, but after tuning it easily held 19psi on 93 octane, and was going to be ~23psi on e85. Typically from what I've seen the non-factory turbo cars stick to less than 10psi becasue the pistons are shaped completely different on N/A cars. If that is modded, then I would venture to say the limiting factor is not the engine or turbo's themselves but the fuel system. DI is great for efficiency, but it has a lot of limitations when it comes to tuning/modding. (well, it costs a crap ton more to mod that is, lol)

 

Only from what I've read also, but the EB will hit up to 20 psi stock and then rapidly taper off. Indicative of running out of fuel on factory settings.
It's funny. My stock 6.4L Superduty would cruise at 20 psi and hit 35+ when hammering on it.

 

You are talking about an iron block and variable vane turbo though They're able to handle MUCH more pressure, and push through an insane amount of air with the variable vanes. Quite a bit different engine, but definitely awesome
The highest "tuned" car that I've read about is the EVO's. They're able to push through ~28-32psi on stock blocks and turbo's. Absolutely nuts, but they're a pretty solid setup, and apparently the older models were a little stronger because they used full copper gaskets for the headers.
The EB has a lot of potential I think, but it'll cost a lot of money to get it there as opposed to modding something like a SuperDuty. The turbo's are tiny and the fuel system is lacking for mod ability. Those 2 things are big money items. The block looks like it'll hold some decent power though (but it's all subject to real world mod/tests )

 

I am unsure if any of the above is true related the Ecoboost's fuel managment. Is it lacking? Is is easily upgradeable? I only know one thing, it is direct injection - like a diesel. I doubt it is running out of fuel due to mechanical limitations.

I would like to hear from someone who has eliminated the 6.2s supposed throttle opening limitations by using a tuner.

 

Yeah, I think it's more of conservative tuning by Ford, not really a fuel delivery issue. I have heard the turbo's may be limited, but that's with Honeywell turbo's on the SHO's. They are over the 400 HP range with those tunes.
I haven't heard from a tuned 6.2L non Raptor person yet either. I want to see what a tuned Lariat does

 

I'm going on a job for the next 2 to 4 weeks but as soon as I get paid I am calling 5 star and getting a tuner. If no one else has surfaced before then I will let you know my impressions.

 

Donate to my "get me a tuner" fund and I'll report back

Let me know what you find out. I'm very anxious to see the results. The only reason I'm lyrie of getting a tuner is 2 fold. 1) Warranty/longetivity of the drivetrain 2) I've gone down the mod/tuning path before and it's ADDICTING and expensive, lol

A true test, PITA, but would be extremely helpful, would be to dyno the truck as it sits, and then dyno it after the ~200 mile break in of the tune to compare the differences in hp/tq curves. Anyone know what gear should be run for a pull 3rd or 4th? I'm "assuming" 4th, but wonder if anyone else can confirm.

 

Well they made me a deal I couldn't refuse, so I bought the 6.2. I will get a tune for it and let y'all know how it goes.