To Macgyver:

The 1994 "N" 5L is listed as follows: 205@4000 hp@rpm and 275@3000 torque@rpm both are Net

 

not according to chiltons . maybe they are wrong?

1994 "N" 5.0 MFI 185HP@3800 rpm 270ftlbs@2400rpm

maybe it is putting out more hp at that higher rpm .

 

Well my Chiltons says EFI not MFI so there lies the differance, mine is EFI but thanks for the info, this was located under General Engine Specifications.

 

mine is EFI also . the difference is MFI or SFI . someone else will have to explain that . all i know is SFI is sequintial fuel injection . what the M stand for i don't know , but i do know all the truck motors were MFI not sequintial . that is a mod that has had other posts here about switching to which includes a mustang harness and harness mods along with the mustang ECM. but i don't know much bout that either .

 

Well, according to Ford, the 1994 F-150 5.0L "N" engine had 185 hp @ 3800 rpm and 270 ft.lbs. of torque @ 2400 rpm. It was an EFI (Electronic Fuel Injection) engine, with a MFI system. MFI stands for Multi-port Fuel Injection. These numbers were unchanged from 1987 through 1994. In 1995, Ford offered a SEFI (Sequential Fuel Injection) system on their F-150 5.0L "N" engine that came with automatic transmissions. These were rated at 195 hp @ 4000 rpm and 270 ft.lbs. of torque @ 3000 rpm. The 1995 F-150 5.0L "N" engine that came with a manual transmission was a MFI system that was rated at 205 hp @ 4000 rpm and 275 ft.lbs. of torque @ 3000 rpm. The 1996 F-150 5.0L "N" engine was a SEFI system, regardless of the transmission, and was rated at 199 hp @ 4200 rpm and 270 ft.lbs. of torque @ 2400 rpm. These numbers are also posted in Chilton's Ford Pick-Ups and Bronco 1987-96 Repair Manual, part #26664 (8136).

Kidd-
The numbers you have posted are correct for a 1995 F-150 5.0L "N" with a manual transmission. For a '94, the numbers that Macgyver posted are correct.

MFI and SEFI are both types of EFI. MFI systems fire multiple injectors at the same time, in groups (banks). In MFI V8's, bank one is cylinders 1, 4, 5 & 8, while bank two is cylinders 2, 3, 6 & 7. In other words, all four injectors fire in one bank, and then the other, and then the first, etc. In a SEFI system, the injectors are fired individually, one at a time.

Take care,
-Chris

 

thank you Chris . that is the exact Chilton's i have (# 26664)

 

Man, you guys have me all confused now !!! My Ford brochure states that I have 205 HP and some odd torque for my '94 302. From what I am understanding, you guys are saying that I don't have 205 HP as a base HP figure ??????? That would just suck even worse, here I am thinking that I have around 230 HP with mods and now I don't ..... {sigh .... sigh}

Have Fun & Keep on Truckin'
Dean

 

Strange. So the batch fire trucks of the same year made more power.....

I'm with Izzy Eddy on this one, I thought they were the same for any given year. Looks like I'm down 10 HP for having the "better" injection system. LOL!

Were there any other differences you know of in the years that had both types of injection?

 

1995 is a very gray area in the automotive world. With mandatory OBD II just a year away, most manufacturers had a mess for a '95 line up. More often than not, half of the vehicles were OBD II compliant, and the other half were a crap shoot. Take for instance the F-150. My '95 4.9L is an OBD I, speed density, MFI system, although all documentation I've seen claims it's a MAF SEFI. As you may recall, I have always been puzzled as to why some 95's were MAF, and others were SD, regardless of the engine. I now believe the answer is in the transmission. It would appear that all 1995 F-150's that were produced with either the 4.9L or the 5.0L, and an automatic transmission, received the MAF, while those with a standard transmission received a SD system. Furthermore, I believe that MAF and SEFI went hand in hand, as well as SD and MFI, when it came to the '95 F-150's.

Now all I need is to run into someone with a MAF 5.0L 5 speed w/ MFI, at which point I will officially quit trying to figure out the powertrain applications for the '95 F-150, and buy stock in Anheuser Busch.

Take care,
-Chris

P.S. Look at the bright side: you're 10 hp up over the '94!

 

Well, I have the "n" engine code ... 1FTEX15N3RKA26637 !!

My Ford brochure states that I have This is right from the brochure ... so what you are saying Chris is that these figures are from a 5.0L with a manual transmission and speed density ??????????????????

I have MAF, 8 fuel injectors, 4R70W transmission (Code "u") with 3.55 rear end. Built in September of 1993. From all of the different times that I have been getting at the track and the different calculations that I or Neal have done, puts me right where my HP is expected to be when figured out with a base of 205 HP.

How can I have less HP but yet these figures comes out to roughly where I should be. For instance, I take my estimated HP with rear gear and mph from the track and it comes out with a time very close to what I am doing at the track. How can this be if I am only suppose to be starting out with 185 HP ??????????

Can someone please explain this ????????????

Have Fun & Keep on Truckin'
Dean

 

Found a HP calculator at Andthensometoo's site ...

HP Calculator

When I put in a weight of 5000 lbs and my last time of 17.469 secs. for the 1/4 mile and hit calculate, it says .....

So, what is the deal, do I have a base of 205 HP or not ???????? My times and mph from the track states so

Have Fun & Keep on Truckin'
Dean

 

your quarter mile e.t. will not help you calculate horsepower, its the trap speed that you can use to get an idea of how much hp youre making. even that isnt all that accurate, though. that calc tells you you have 240 hp, so that would mean you gained about 40 hp from your mods (and looking at your sig the only preformance mod i see is the ravin muffler), so the calc is definitely off. if you have maf, chances are you probably are making 205 hp. go dyno it and see what you get at the wheels (which is what really matters anyways).

 

Donate54,

My modifications are a K&N FIPK, the exhaust system which incorporates an aftermarket replacement for the dual cats., it is now a single cat, a raven muffler with dual mandrel bent tailpipes. And of course, courtesy of Mike Troyer a Superchip.

My Bassani equal-length shorty headers are on their way, so I hope to have them installed by the time we go to the track next. Also Neal "HP Freak" and I have been talking about putting a shorter tire (25" - 26" tall) on a set of rims that should raise my rear gear from a 3.55 to approximately a 4.10. This should give me a substantial difference since I am finishing the quarter mile JUST before I shift into 3rd gear with my 28" tall BFGoodrich's.

Our estimates for my hp figures are as such. Base HP is 205, the K&N - 5 HP, Exhaust work - 5 HP and the superchip - 15 HP. So that puts me in the 230-235 HP estimate. This allows me to run 17.469 secs at 78.12 mph in the quarter mile or at least it did the last time I was at the track. And that is in full street trim, I don't take nothing off of the truck.

Have Fun & Keep on Truckin'
Dean

 

ya know what really sucks? nissan has a v-6 out that puts out more HP then our trucks :-(

 

Even worse, Honda has all kinds of 4 bangers that put out more hp! But I just tell all them rice burners that I'd like to see a 4 cylinder make 250 hp @ 4000 rpm with natural aspiration. And 350 ft/lbs tq @ 3000 rpm would be pretty amazing too. See, we've got muscle where it counts

About that hp calculator, those are just rough estimates. All it asks for is the model, 1/4 time, and vehicle weight. It doesn't take into account gear ratios, transmission types, tire diameter/weights, or vehicle heights. A 5000 pound truck that is lowered with race slicks, a manual transmission and 4.10 gears that can complete the 1/4 mile in 17 seconds probably doesn't have as much hp as a 5000 pound truck that is lifted 9 inches with 38" boggers, an auto transmission with no shift kit, and 4.10 gears that can run a 17 second quarter mile. Also, driver skill comes into play. Vehicles being identical, if you pitted me against John Force, guess who's going to be sucking who's exhaust? Not Mr. Force.

I entered my info. into the calculator and it said that I had 176 hp at the flywheel! That's a joke! What it's probably not counting on are my 35" tires and 4" lift. Also the fact that I wasn't manually shifting played a part in the terrible time I got. But all this doesn't change the hp my truck actually has.

Yeah, one of these days when my truck is all fixed up I'm gonna take my truck to the track just for $h!+$ and grins. With any luck, I won't embarrass myself too much