Where's OUR Horsepower?
Fleet Mechanic
Joined: Aug 2006
Posts: 1,684
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From: Phoenix, AZ
Originally Posted by DOHCmarauder
Like already mentioned; the Cobra had a N/A 4V 5.4 and the CURRENT Shelby uses a Blown 5.4 DOHC 4V.
And while it was only with us a short while; Ford's crown jewel GT used an aluminum block, dry sump DOHC 5.4 4V.
This subject is very frustrating to me because Ford HAS the goods in their parts bin to offer us the power crown.
And while it was only with us a short while; Ford's crown jewel GT used an aluminum block, dry sump DOHC 5.4 4V.
This subject is very frustrating to me because Ford HAS the goods in their parts bin to offer us the power crown.
or hell, another contender for the performance crown would be a v10 based on the 4.6 stroke. it's been done in a mustang before with pretty damn good results... dohc v10, 5.8L, made upwards of 400hp/420tq if i remember right... that would take no effort to do.
or hell, drop the v10 in the f150. exactly as it sits right now... would pretty much shut toyota up real quick
Sit. Stay.
Joined: Oct 2001
Posts: 18,308
Likes: 20
From: Washington State
I really think (but don't know for sure) that the engine in the 5.4L is limited by the tranny that is used and not the technology for producing more/better power out of it.
If they had a stronger tranny with the correct "truck" ratios then I would imagine they'd have a stronger engine.
I really think the V10 would grenade the 4 speed or the Expy's 6-speed. But I'm no automagic tranny wiz.
If they had a stronger tranny with the correct "truck" ratios then I would imagine they'd have a stronger engine.
I really think the V10 would grenade the 4 speed or the Expy's 6-speed. But I'm no automagic tranny wiz.
Fleet Mechanic
Joined: Aug 2006
Posts: 1,684
Likes: 0
From: Phoenix, AZ
Originally Posted by Monsta
I really think (but don't know for sure) that the engine in the 5.4L is limited by the tranny that is used and not the technology for producing more/better power out of it.
If they had a stronger tranny with the correct "truck" ratios then I would imagine they'd have a stronger engine.
I really think the V10 would grenade the 4 speed or the Expy's 6-speed. But I'm no automagic tranny wiz.
If they had a stronger tranny with the correct "truck" ratios then I would imagine they'd have a stronger engine.
I really think the V10 would grenade the 4 speed or the Expy's 6-speed. But I'm no automagic tranny wiz.
the mustangs that have em (96+) push 500+tq on slicks through stock autos all the time. the 2004+ f150 4R75E based on it, is even beefier. they could handle a v10 just fine
FTE Leadership Emeritus
Joined: May 2004
Posts: 18,787
Likes: 30
From: Melbourne, Aus
Originally Posted by Monsta
That 5.4L is the 4V. I guess it is similar to what used to be in the Navigator.
It needs more torque but I'd take a 348/368 4V V8, I guess. BTW, the specs said it makes 260kW which converts to 348HP...not 389. Where did that number come from or did I convert it worng?
It needs more torque but I'd take a 348/368 4V V8, I guess. BTW, the specs said it makes 260kW which converts to 348HP...not 389. Where did that number come from or did I convert it worng?
290kW = approx 389hp (forthcoming version will be 325kW)
And the current is a rather "energetic" 389 ponies - if you catch my drift
As for using it in a "real" truck.... I would advise against it (unless the forthcoming 420hp version proves better).
The engine doesn't really make a whole lot of torque until 3500rpms - and then, thanks to its long stroke, the party is all over by 6grand.
Great for a car (or a light "sport truck" like mine) not so good for a heavy Crew Cab F150.
The better motor would be the turbocharged 4.0l I6.
Been dynoed at over 1000hp:
http://www.youtube.com/watch?v=fb9Q6ErB8cw
(language warning on some of the comments)
Thing makes 325lb-ft from 1500 rpms - all the way to redline (6500)
Max torque is about 410lb ft@2000-4500rpms (converting in head)
This is for the current 360hp version. The 420hp version should have MUCH more torque
Last edited by BigF350; Apr 9, 2007 at 03:50 AM.
Sit. Stay.
Joined: Oct 2001
Posts: 18,308
Likes: 20
From: Washington State
Originally Posted by Ford-150
i really do not want to sound like this but the V10 gets pretty bad gas mileage, my friend has it in his F250 and he gets at the best 9 or 10, but its just badass to say, ya it has a V10 in it
Post that include "my friend, buddy's friend, a guy at work, some guy who told etc. etc." and use them as proof is pointless. 
Sit. Stay.
Joined: Oct 2001
Posts: 18,308
Likes: 20
From: Washington State
Originally Posted by BigF350
www.fpv.com.au
290kW = approx 389hp (forthcoming version will be 325kW)
And the current is a rather "energetic" 389 ponies - if you catch my drift
290kW = approx 389hp (forthcoming version will be 325kW)
And the current is a rather "energetic" 389 ponies - if you catch my drift
Sit. Stay.
Joined: Oct 2001
Posts: 18,308
Likes: 20
From: Washington State
Originally Posted by Fosters
you'd be surprised what the 4R70W can handle.. the mustangs that have em (96+) push 500+tq on slicks through stock autos all the time. the 2004+ f150 4R75E based on it, is even beefier. they could handle a v10 just fine
the mustangs that have em (96+) push 500+tq on slicks through stock autos all the time. the 2004+ f150 4R75E based on it, is even beefier. they could handle a v10 just fine 
Bet they're cheaper for Ford than the 5R110.
f-150
Lead Driver
Joined: Sep 2003
Posts: 5,844
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From: Albuquerque
Originally Posted by Ford-150
i really do not want to sound like this but the V10 gets pretty bad gas mileage, my friend has it in his F250 and he gets at the best 9 or 10, but its just badass to say, ya it has a V10 in it
IMO...sounds like "User error". Come visit the V10 forum sometime. Most reports are in the 14-15mpg highway...and city 12-13mpg. In an all OEM setup.
biz
Lead Driver
Joined: Sep 2003
Posts: 5,844
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From: Albuquerque
Originally Posted by Monsta
Gues we'll have to wait for them to build a whole new engine to get the HP/TQ "bragging rights". The way I see it is we can only legally drive 75mph in the US (in certain places). Our current 5.4L accomplishes that no problem even towing 10K. What's everybody's hurry?? 
The hp/torque numbers for bragging rights should go away like the dinosaurs. In today's world...and increased oil costs and instability, FORD should be thinking of economy over hp/torque ratings. The current 5.4L 3v is a GREAT engine and suites the F150 perfectly. Does everything it was designed to do.
The 6.2L V8 "Hurricane" (or whatever they are calling it this week) will be the next generation V8 for FORD. It will have the high hp/torque figures, but with better fuel efficiency. The 6sp Auto tranny will certainly help with putting the power to the ground, but keep those mpg's up.
Anyway...just my .02
biz