I am looking for the factory hp/rpm and torque/rpm figures for the 4.6L engines for the various years they have been used.

Thanks in advance for the info,
birdman

 

220 hp at 4,500 rpm and 290 torque at 3,250 rpms for 97-2000 4.6 tritons.

 

These figures are just for the f150.

 

So the '99 and 2000 motors didn't follow the power increase of the Mustang to 260HP?
Interesting.

Seems you could put the Mustang heads on, which account for about 35 hp, and get some power that way. This wouldn't be the cheapest route, but was wondering.

birdman

 

Nope, the 5.4l has 260hp though. The f150 should get the Expedition motor {240hp 4.6l}.

 

Just a comment, I was under the impression that the '97 4.6 had 210 HP @4500 and the same torque.

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1997 F150 XLT Flareside
4.6, Auto, 3.55, custom catback
Pioneer DEH-305, Alpine 3547, 12" Kicker Comp.

 

Has anybody had their truck on a dyno to see what hp these engines really make? The Cobras are down quite a lot from their rated hp.

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97 4.6 F150, 1/8 = 10.885 @ 64.10 mph, 88 5.0 Mustang 1/8 = 7.409 @ 93.72 mph



[This message has been edited by LarryS (edited 01-14-2000).]

 

I wouldn't be too concerned about the 'rated' HP. I recently took delivery off a '00 5.4 with 260 hp. My 99 4.6 with only 220 however feels pretty close in terms of power /acceleration. Not that the 5.4 is slow but let's just say I was expecting more.
The 4.6 and 5.4 are very close in terms of power, so I don't think that if my 4.6 had an extra 20 horse it would be much different.

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99 2wd S/C s/b XLT 4.6 Triton auto. w/3.08
BONE STOCK...for now
and
2000 Lariat 5.4 4x4

 

Rear wheel horsepower is substantially less in any vehicle. In the f150 with 4.6 and 3:55's it's still around 200 hp from what I read in a magazine article. So I would assume the 5.4 would lose even less Hp.

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'97 Ford SC 4X4 XLT Off Road pkg., 4.6,A/OD, 3:55, premium sound w/CD chg, Black clct,towing pkg., hvy duty elec. pkg., Bridestone dueler AT's, line X, Flowmaster true duals, chip, K&N air filter, smittybilt stainless nerf bars