jpdadeo, that's the kind of reply I was hoping someone would post...glad to see not everyone on here are a$$holes and make a big deal about everything.....Getting my Xcal 2 in a few days hopefully

 

still waiting for mine. they said 2-3weeks. its gotta be close to that.

 

jpdadeo hit all the main points that the XCAL will do. it pretty much "unleashes" that 5.4 Triton from the super dosile programming done by Ford.
Like i said to Troyer, worth every penny and some.
Does it put down 25ft. worth of rubber, well not for me....but well worth the $
thats for you D

 

I love it.

 

Can you explain "goes open loop instantly at WOT (no 8 to 12 sec. delay)"? Thanks.

 

The factory PCM is set up to delay open loop significantly, in fact some vehicles never attain open loop. Troyer’s custom tunes changes that

quote from one of Mike's posts:

"In short, "Closed Loop" fuel control operation is when the PCM is using the feedback from the oxygen sensors to constantly adjust the air fuel ratio to a 14.64:1 A/F ratio. You're stuck at "stoich" A/F, thus there isn't much spark advance that can be tolerated before the motor knocks, so the engine doesn't make maximum power - as is appropriate, as this is basically it's "cruise" mode, for lack of a better term - for just enough power to cruise and get it's best fuel mileage.

Open Loop fuel control operation is when the engine makes it's *real* power - in this mode, the PCM ignores the feedback from the oxygen sensors and no longer forces the engine to run a 14.64:1 A/F ratio - instead, it uses the signal coming in from the MAF meter or MAS to determine how much fuel and timing to put into the engine, based on hand-coded values in lookup tables that are based primarily on load, and the result is richer A/F ratios and that makes the engine able to tolerate more spark advance"

 

So if it's a richer A/F ratio with a tune from Xcal 2.....you can expect worse gas mileage? I'm assuming supstainally more power from Troyer's custom tune = worse gas mileage. Am I correct or incorrect?

 

more power equals less work equals fuel savings.

but at the same time more power equals heavier foot equals efficiency loss.

 

So it's a draw then huh? Can a 87 performance tune from Troyer allow you to spin the tires on regular pavement. I have a 05 5.4 Lariat Screw 4X4 with 3.73 gears and I can barely chirp the tires without a tune, exhaust or intake. I'm thinking about doing an exhaust and intake, maybe that will help, and maybe I need the reflash? Who knows.....

 

closed-loop is when you are at less than 81% throttle and the engine is up to normal operating temperature

open loop is 80% throttle and above (full throttle operation, basically)

The Xcalibrator is a performance product marketed to increase hp & torque; any fuel savings you get will only be a byproduct. Keep your foot out of the throttle and you get better mpg’s

 

you should see a gain in efficiency if you drive 100% the same. But most guys end up getting the lead foot with the performance upgrade.

You its really up to you. Yeah it can be a draw but there was a couple of guys here who have driven the same and did report better MPG.

 

Yeah I'd drive the same...except for everynow and then flooring it....which is no different then what I do now. I just want something that doesn't have a 10 second delay when I hit the gas at a stop light to start going. It's like this...green light, gas pedal, 1, 2, 3, 4, go.....pretty nuts. So if this gets rid of the delay and helps accelerate onto the highway without having to floor it; and helps my gas mileage or doesn't hurt it...AND doesn't hurt the life of the engine.....then I'm game! Not too many requirements huh?

 

I cannot spin the tires with my mods (91oct/Airraid/Magnaflow). It comes damn close when it shifts into second though.

 

I got a 3:55 gear and I can blister the tires from standstill and get a minor chirp on the 1-2 up-shift. 93-octane Max-Performance tune, Troyer of course

 

Does it jump off the line though? Mine just feels like I'm towing a boat when I punch it from a stand still. The pedal goes to the floor and the truck slowly goes forward then picks up speed.