I agree with the VVT. But you can't compare peak HP in a Car (mustang) to the engine that will work in a truck. Pulling a hill at near peak tow rating for the 20 minutes it takes to get 2500 ft up a mtn. pass would cook the mustang engine. And that is what would happen to the Toy motor in real life, Not the fake a55 comertials the play up on TV.
You guys that seem to be embarassed by your 5.4 should get a V-10 SD. 450 ft lbs to haul your loads.
If your not hauling or towing and just want a fast truck for a grocery getter than for gods sake go get a Super Charger. For $4000 you can have a very fast F150
FYI, I own a Super Duty with V10/4.30's and an '07 Tundra 5.7.....the Toy will out pull the Ford any grade, anytime with the same loads.
The fact a motor has high peak HP/torque does not mean it doesn't have a broad, long curve that starts low. (The Toyota motor)
Modern technology (VVT, 4 valve DOHC heads) can be a wonderful thing; and I have no doubt in my mind that Ford has the know how and parts to do it.
Of course, GM does it with higher displacent (and VVT in the case of their 6.2 screamer) and seems to get good results.
you can't compare the power an engine makes overseas, where the emissions regulations are a lot less strict than over here, and gasoline is a lot better, with the choking manufacturers have to do over here and the stupid low octane gas they have to run on.
Also, those motors are in cars - not trucks - so you'd be giving up some of that HP to shift the torque curve a little lower... US had something close in the 2000 R
The Cobra R motor is EXACTLY what I'm speaking of .......and I disagree on giving up HP to gain low end; variable valve timing will accomplish that for you.
Quote:
Originally Posted by Fosters
I'm not saying 4v heads wouldn't help (hell, I love the heads on my mustang), just not as much as some people think they would.
Again, Toyota and Nissan make DOHC 4 valve truck motors that say otherwise.
The Cobra R motor is EXACTLY what I'm speaking of .......and I disagree on giving up HP to gain low end; variable valve timing will accomplish that for you.
Again, Toyota and Nissan make DOHC 4 valve truck motors that say otherwise.
something tells me the toyota and nissan don't use 510 lift cams for their truck motors... trust me, you will give up some hp, especially knowing ford won't use anything over a 400 lift in a truck motor; hell they won't even use em in mustangs...
VVT is good, but not god either, can't make mountains out of mole hills. now, an FR500 style intake... that'd be something worthwhile
Quote:
Originally Posted by dascro
I do not buy that a V10 can be outpulled by a V8 that makes less torque/HP smaller displacement and peakier torque curve. I call BS!!
I think he hasn't had it loaded down yet... the V10 F250 doesn't do all that great without a load, but once you put a hefty load on it and make it work, it's a monster...
I do not buy that a V10 can be outpulled by a V8 that makes less torque/HP smaller displacement and peakier torque curve. I call BS!!
Mine is an '01......
The 5.7 makes more horsepower than both the 2V and 3V V10 and slightly less torque than the 2V 6.8. (and sadly, the Toy 5.7 puts more power to the wheels than either version of the V10)
Wonder why some think the Toy 5.7 is "peakier".......the thing makes a LOT of torque down low.
Maybe the fact it has such high "peak" numbers confuse people.
Last edited by DOHCmarauder : 02-04-2008 at 08:57 PM.
something tells me the toyota and nissan don't use 510 lift cams for their truck motors... trust me, you will give up some hp, especially knowing ford won't use anything over a 400 lift in a truck motor; hell they won't even use em in mustangs...
VVT is good, but not god either, can't make mountains out of mole hills. now, an FR500 style intake... that'd be something worthwhile
Ok then......380HP with less agressive cams.
That number sounds familiar.....with 400#'s of torque, it would equal the Tundra.
Well the 3V makes 462 ft lbs at a low 3250ish if memory serves correctly. The 5.7 toyota makes around 400 at at a comparable speed. Thats pretty significant. It does have a good bit of torque down low but it doesn't compare to the 6.8.
The toyota motor makes great numbers i won't dispute that. I don't think it is in any way in the same class as the 6.8, one of the true heavy duty gassers left.
The 5.7 makes more horsepower than both the 2V and 3V V10 and slightly less torque than the 2V 6.8. (and sadly, the Toy 5.7 puts more power to the wheels than either version of the V10)
Wonder why some think the Toy 5.7 is "peakier".......the thing makes a LOT of torque down low.
Maybe the fact it has such high "peak" numbers confuse people.
Maybe peak torque at 4900rpm has something to do with it...
__________________
2004 F150 XLT screw 4x4 5.4 - 2.5 leveling kit, 34.5" BFGs
2004 mach1 mustang, every bolt on in the world...
I think he hasn't had it loaded down yet... the V10 F250 doesn't do all that great without a load, but once you put a hefty load on it and make it work, it's a monster...
there are several RV forums on the net that constantly sing the praises of the 6.8. Many choosing to compare the truck to the diesel. These guys regularly tow very near or even over the capacity of the truck. 6k lbs is not a challenge for any 1/2 truck. It is under the rangers capacity. 2 jet skis are probably below the rating of the escape...
This was never meant to be a Toy vs Ford discussion.....somehow, they always end up being that way.
My one and only point is I'm glad Ford is stepping up with a 6.2 to compete....but I've also always felt they had the parts bin to step up any time they wished to.
As a former Lightning owner, I think Ford could have even FACTORY appeased us with a blower....(then we'd get all the goof balls crying how Ford has to cheat to compete)
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