I was just waiting for my cue. Julien and Richard pointed me in the direction of this thread. I asked my editor and he emailed the author of the article to get the injector and fuel pressure info. I have a feeling that I'm wasting my time though. I've been around forums enough to know that people will believe what they want to believe no matter the facts and it seems many here have already made up their mind. Until we get the info from the author I can tell you this:
1) The article was written by a freelancer who couldn't care less who advertises in the magazine.
2) Sources at the end of an article are NOT advertisements. If I could write a company's name and email address at the end of an article and have that somehow turn into money, I'd have a much faster truck right now.
3) The magazine's 60-year reputation isn't worth tarnishing for the sake of a handful of extra newsstand sales. It's not good business.
4) Some people clearly don't know the difference between evidence and speculation.
5) That emoticon of the guy swinging his junk on the right hand side of the "Reply to Thread" page is kind of disturbing. I will probably find a way to use it in the future. Consider yourselves warned.

Brandan
Online Editor
Hot Rod Magazine

 

Well fellas, here it is...

"Injector Duty Cycle is the amount of time a fuel injector is energized or on during an engine cycle (intake, compression, combustion and exhaust)...It is impossible to physically run an injector HIGHER than 100%."


In any case, just take the article for what its worth. It was on an ENGINE DYNO with no accessories aside from an ELECTRIC water pump...

Take the 451hp NA that it made and subtract 30% off of that for lack of drivetrain and accessories and you get 316hp... THAT sounds like a true to life WHEEL HP number to me. Now take 1200hp and subtract 30% and you get 840hp, sound unreal now?

Just saying...

 

Thank you. So if the duty cycle is 100%, then... the injector is open 100% of the time all the time... and not 125% of the time.

Still gonna wait for the "explanation" from HR. 30% is a lil high driveline loss so ill wait, but that makes it sound a little more believable, but my numbers are all based of hp numbers at the crank.

 

Hmmmm, why is that I get the feeling that no matter what evidence you're given, you're going to ignore it?

 

30% loss isnt unrealistic either, in a truck. Figure even in a 2wd manual, 15-20% is gonna be through the driveline and with all accessories, that could easily be another 5%. Now if were talking 4WD/AWD with a 4L60E/4L80E, 30% loss isnt so farfetched.

In any case, take 20% from 1200hp and you get 960hp... Still not an out of this world number for this combo to put down at the wheels.

Some people are just gonna believe what they wanna believe.

 

What makes you think that? Do you personally know me? Do you know exactly how i think and act? Pretty quick to judge dont you think, all ive done is point out some obvious FACTS, not enough FUEL for that much power, everything else point in favor of them, even boost, just kinda weird that they dont have enough fuel, which is A BIG FACTOR. Lets say that they didnt have enough airflow from that turbo, like if it was too small, what could they have done? Increase VE with GOOD heads, BIG cam, LOT of compression, and RPM. Could they have done tricks to increase fueling? Yes, but did they document?....

I believe 30% out of a stalled TH400, but anyways your right, its just im used to lot manual transmission cars.

 

Again, you dont know the fuel pressure, and therefor know nothing about how much their fuel system actually flows. The magazine representative is looking into this for us, so be patient and wait to find out the FACTS before making accusations of fraud.

 

Why would I think that? Why else would you quote, "explanation"? You already have misgivings about an answer we don't even have yet.

Just for the record, all the evidence so far shows that the engine did make 1,200hp. That's what the dyno numbers are for, evidence. You're the one now making the claim that it didn't and you're basing your speculation on a variable that you admittedly don’t know the value of.

 

I think we need a set of boxing gloves for this site sometimes.

 

i bet my dad could beat up his dad......