AG4.0

Earlier you were making a point by using the old and new Mustang 0-60 & 1/4 times. (now that I think about it, I kind of made the same arguement as well). The only flaw to this reasoning, is we are comparing apples to oranges. Yes the new GT is faster with extra weight, but the whole car has been redesigned: new suspension, a longer wheelbase, etc. So who is to say these changes are not what made the difference more so than the 3v. Just a thought...

 

The Lincoln Navigator with the 3v 5.4 does not require premium. It's not the first time FoMoCo has made a mistake on one of their websites.
I know that it is basically comparing 2 completely different cars, but it's the best 3v vs 2v or 4v comparison I can make. The F-150 is another example of how a much heavier vehicle became quicker going from 2 to 3 valve design. The HP and Torque numbers aren't made up (Ford learned a lesson about overrating a motor in the 99 SVT Cobra)

 

Why would 4-valve heads with VVT require moving to DOHC? Honda has been doing 4-valve SOHC VTEC engines for quite some time now (not i-VTEC though, don't know if that makes a difference)

 

For some reason i am unable to copy and paste the VVT info for the 5.4 3-valve, Marauder. So go back too the news section and check April 2003. Article gives a general description of how it works.

 

Thank-you.


Electronics controlling solenoids controlling hydraulics............and some of you think 1 extra cam is complex

Meanwhile, I just ordered my 3 valve V10 from Jeff(FTE advertiser and all around great guy) so I will be an Alpha tester.........may Ford have mercy!

 

FYI, the 3 valve v10 doesn't have VVT.

 

Thanks, I didn't know that!!!

That's freaking amazing then. To increase the torque AND the HP of an engine by what I'm guessing is enlarging the intake side(2 valves) is a great job. Usually increasing HP or going to higher RPM's means the low speed air velocity is slower/less efficient. Especially on a "smaller" HD truck motor.

So not only is the air velocity still there to create the best in class torque, it still breathes well enough to make some HP.........KEWL!!!

 

And none of the VVT electronics to try and deal with. Just good old mechanics.

 

From the Chicago Auto Show
http://www.chicagoautoshow.com/showf...p?MODEL_ID=388
http://www.caranddriver.com/article....rticle_id=9211
Looks like the Mountaineer is getting a 292 HP, 300 ft-lb version of the 3v 4.6. Anyone know if the Explorer is getting the same upgrades.

 

I wonder what is so improved about the 4.0L. I guess they just used the Mustang Version. I think it'll be intresting to see if the new 4.6L with 6-speed will achieve the same or better mpg figures than the 4.0L.

 

It's probably "improved" like the 4.6 was "Improved" on the 04 F150's. I think the difference was electronic throttle control and tweaked to be a bit more fuel efficient and get better emmisions. I was thinking that the Explorer already had the best tuned version of the 4.0, 210 HP and 254 ft-lbs, compared to 207 and 238 in the Ranger. To see how the 4.6 was "improved" for 04, check this link, about 2/3 the way down.
https://www.ford-trucks.com/specs/2004/2004_f150.html

 

Ok, did some searching and found that the Explorer will get updated as well, although the article is very vague.
http://info.detnews.com/autosinsider...x.cfm?id=18254