I really don't understand that rationale. If your wasting half the equation for horsepower, how does that not translate to wasting horsepower? Let me put it to you this way, I have bigger injectors, yet after I get going I can still make my truck smoke long after my turbo has caught up; smoking after the turbo that I(or anyone has for that matter) have is caught up with boost means that the smoke that I'm seeing is fuel that isn't getting burned and all that fuel is doing is going right out of the tailpipe, how is that not wasted horsepower? The only way I'm going to generate more boost is to go further down on the throttle, which it's still going to smoke, not as much eventually, but I still see a stream of smoke(faintly black, but you can still see it) and that is still unburnt fuel, not a whole lot compared to initial startup, but still not every ounce of fuel is getting burned some is getting wasted and thus horsepower as well. How do you think those off the shelf tuners make horsepower in diesel, why do you think they are always suggesting aftermarket airfilters so you will supposedly get the full benefit from their product? Also, you said "if air has not yet been supplied" that still means wasted horspower, if you had an input of air that was equal to how much fuel was being dumped into the chamber at that earlier time it would mean more horsepower at that point in time.

 

Why SCT? What does it do diffrently than edge or any other progerammer? Don't they all do the same thing? Are SCT's programmable as you drive? I don't know so that is why I'm asking...

 

No smoke...that sounds strange.

I have a bone stock one and i can make it smoke when i mash it until the turbo catches up after a while.

 

The SCT can be programmed to suite your needs, so if you love making smoke you can order a program that will make as much as you want.

The SCT is not programmable while you drive but when you do want to change tunes, such as if you are going to be towing a heavy trailer, it only takes 1 to 2 minutes to reprogram, and the SCT is safer for your transmission.

 

So by your reasoning, everyone is wasting horsepower by not using all the air in the atmosphere? Elaborate more on "wasted horsepower".

Yes if you had a perfect match of fuel to air you would technically have "more horsepower", but since it is not quite possible to obtain the perfect 100% fuel to air ratio, how does adding more fuel waste horespower? Would using less fuel generate more horsepower? If the engine is using every bit of fuel it can w/ the amount of air it has, it has maxed its potential for more horsepower.

I think what you are trying to describe is not "wasted horsepower" but something along the lines of "potential horsepower". Wasted fuel maybe, but the horsepower is not wasted.

Here's another analogy. Say you can put 10 cars through a toll booth a minute. This is as fast as the machine will operate. You have a line of cars waiting to get through. If you start running more cars through per minute, the money starts to pile up in the coin catcher and spills over. The machine is still receiving 10 cars worth of money per minute, but is not making any more money on the spilled coins. The coins = fuel and the revenue from the booth = HP. Throwing more coins that the machine can handle is wasted fuel and the booth is maxed out on its potential HP. If the machine was upgraded and could handle more cars per minute then that will increase its potential HP. If the number of cars were to slow down the number of coins (fuel) would decrease and thus your revenue (HP) would be less. The only thing wasted is fuel.

 

if you ask anyone here it seems biased but it is not the SCT is the best flash tuner w/ endless capabilities that can be altered to fit anyones needs, the edge just adds fuel and timing, and you cannot safely add power above the stock file of 3,500RPM because all the fueling boxes out there only add to the stock file. A true flash tuner writes a completely new file and can be altered as you wish. As matt told me " you cannot add fuel where ford stopped adding fuel". This means ford never let the engine rev above 3,500RPM so altering the stock calibration is just altered and not new.Also most tuners and fueling boxes (AKA power modules) do not change or very little change for your transmission. So you are adding big power and doing nothing to raise your transmissions line pressure to harness that power, and the edge has been known to over boost trucks and cause head gaskets concerns, I have personally seen one that overspeeded the turbin shaft and caused the bearings to fail,then the base engine oil runs down your exhaust and aluminum and tungsten enter your intake manifold and finnally into your combustion chamber.. stock turbin shaft speed at full load and WOT is normally 120,000RPM max! the edge has been known to overspeed that turbin shaft and bearings in excess or 210,000RPM... this is a huge issue. extra boost does not always mean more power. Boost is needed to completely burn the fuel injected into the combustion chamber which gives you power and the best fuel economy. Too much is unecessary and harmfull. So no THEY do not all do the same thing, in the drivers seat you may feel similar end result in more power, but and SCT is much more versitle and safer w/ the correct file and can be altered as you desire. I will tell you though, some people that just want a bit more power and never want to mess w/ a scan tool or computer may want an SCT w/ generic preloaded files for ease of installation and plug and play results.

 

It doesn't matter how much more fuel you're pouring into the engine. If it's not burning (ie, going out the tailpipe as smoke), then it's not making more horsepower. Smoke going out the tailpipe is unburnt, or wasted, fuel. If the fuel were burnt, you'd be making more horsepower, so unburnt fuel is wasted horsepower as well, depending on your point of view.

 

In this case potential horsepower and wasted horsepower are the same thing. If your pouring black smoke and that's potential horsepower then you would actually be getting more horsepower if your truck was burning that fuel and using it rather then dumping it.

 

not really, It is not actually fuel it is partially burnt fuel. I understand what you mean but a gas engine regulates air. A diesel has a wide open non-restrictive air intake system and only knows fuel and timing. You really mean smoke is wasted money at the pump and that I will fully agree w/. But it is cool. any tuner that builds more power than stock w/ smoke, if alot of these statements were true about wasted HP w/ black smoke then none of us would buy tuners because the stock truck would have the most efficient HP..

 

It would be potential horsepower in the aspect that the engine could be modified to use the extra fuel. However since the engine isn't going to make any more horsepower in relation to the fuel input (more fuel or less fuel), it's not wasted horsepower as no more horsepower could be put out by adjusting the fuel input.

You could say someone who is dumping black smoke isn't achieving the potentinal horsepower because the engine could be modified to use more air (bigger turbo/intake). But it's still not "wasted" horsepower, since the engine can't do anything with the fuel until the engine is modified to accept it. Calling wasted fuel wasted horsepower is like saying your wasting horsepower while idleing.

 

had a edge blew 4 setshead gaskets and 3 egr coolers .got the sct with matts tunes haven't had a problem sense

 

sure, wasted in a gas engine would be w/ too fat of a secondary jet or the choke stuck on, achieving less than the stocimetric 14.7:1 air/fuel ratio..

 

egr coolers may have been defective, but head gaskets!! 4 sets..I guess EGDE is a swear word in your house.. only cost you several thousands in repairs unless your dealer covered it for you.

 

Actually I could argue that unless your talking about tuning alone. There are several design flaws that if changed(although not likely as what I call flaws were mandates that ford and the other two had to put on their diesel trucks by the epa) would improve upon horsepower without even having to change the tuning on the truck.

 

of course, I am just dissagreeing about the excess smoking in a reverse way to the others thats all.