Do you actually think that the engine would last 4 seconds at WOT if it wasn't receiving enrichment? I guarantee that there's a lot more going on than just a delay in providing PE - since this engine has ETC, it's a lot easier (and safer) to restrict power by simply keeping the throttle partially shut.

At least the people in this thread are taking the news of a favorable C&D test fairly well (much better than in the recent Z06 thread)

 

I have no idea - I'm assuming that the authors of the article know what they are talking about... but I tend to agree with you that it sounds like there's other parameters at play - I'd like to have a looksee at the tune to determine what the actual issue(s) might be, but I would confidently say its something that could be easily addressed. For instance, there are no performance issues with Holden's L98 yet the PCMs are identical to the trucks' albeit with different tunes.

A 4s delay on PE mode can definitely be felt in acceleration... it almost sounds dangerous?

 

Fuel economy is almost never THE ISSUE. Emissions is almost always the reason for conservative or even weird factory tunes.

I have a 500 hp LS1 with a cam yet my car's fuel economy is better than most stock LS1's. I've tuned it for street performance, not for fuel economy. Whether my engine will meet local emissions regulations is another matter entirely.

 

It's for real some how some way. As captured from Edmunds dyno test.

 

Thanks for the dyno graph.

From what I can tell, a 4 sec PE delay would almost certainly mean the engine is running less than optimal timing.

No wonder the Silverado is a slug.

 

Titan has a nice engine, but the rest of the truck is no better than those it beat. Fords V8 is its weakness, but other than that I'd put it ahead of the Ram and Titan.

2009 F-150 and Dodge Ram will be new, things should get interesting. Both will have 6.X Liter V8s

 

Ouch the Tundra's engine sure makes the power and early too.

 

Here's C&D's score sheet from the test:

 

Did anyone see the screenshots from the making of the Toyota commercial? They had 3 work trucks there at the filming and all 3 were Fords, lol.

 

So the Tundra beat the Silverado in gas milage, towing, and the all great category of "got to have"?