New here, have a question. I have an ‘01 F250 with the 5.4, been a good ol truck. Got 256k on it now, always maintained well...

Wife wants a camper. I know the truck will pull it, cause I pulled a skid steer last weekend to some side jobs (didn’t get in no hurry by any means, but it pulled it.)

The camper we’re looking at weighs much less than that skid, think it’s around 6k lbs dry weight, so I know it’ll pull it ok. However, a few of the places we camp have some huge hills, so I was wondering what simple bolt on power adders are out there that work well for these trucks. Been looking at the SCT X4 tuner (for the tow tune) and a cold air intake of some kind. Any pros-cons here? Am I on the right track? Bolt on some power or leave it alone? If so, what is a good cold air intake for these 5.4’s? Any advice would be appreciated. Thanks in advance.

 

I would suggest not to depend on manufacturer's weight sticker. Most travel trailers run well beyond that weight ready to roll. I would be thinking more of the GWR. rather than the dry weight. I have towed both skid steers and lots of campers and the experience is different in that air resistance and wind play a much greater role when a camper is on the back. Almost anything can tow the weight, but comfort while doing it may be in question. You may be a little light on truck. Obviously I have a much bigger truck now, but I have towed with our 5.4 F150 in the past and I often felt like we had tossed out an anchor when we had to get rolling and again when we hit a hill,

My two cents.

Steve

 

thank you for the info. I sold my diesel and bought this truck 2 years ago, and I’m still trying to train my mind to understand that this isn’t a pile of crap, it just isn’t a diesel. It’s been a great truck. And I completely understand what you mean by the aerodynamics. The camper I’m buying is actually the same one my uncle just bought, which he pulls with a 1/2 ton ram. 2021 Grey Wolf Cherokee, rounded front, extremely light and cuts the wind good. His truck is also new... anyway, I pulled his and you are correct. Feels like dropping an anchor on bigger hills. Just looking for a way to cure that problem without buying a new truck.

 

I have an 03 f250 5.4 and I pull my 7x12 dump trailer with a skid steer and my 8x12 cargo trailer filled with tools on a daily basis in central pa (very hilly) to say the least. It pulls it just fine without having to "punch it" as far as pulling a camper just be sure you have good tires and your 4x4 works you'll have no problem.

 

Regearing the axles to 4.56 or 4.88 would make the biggest difference.

 

I had a 2003 with the 5.4L and a travel trailer that was between 5500 and 6000 loaded (depending on our camping destination). I also loaded up my VStar 650 in the bed for a few trips. It all towed very well, and we put a lot of miles on that truck with that trailer. The worst we had were the mountains in Tennessee on a trip there for a family reunion. But it did pretty good. Just had to go easy on the hills.

I did have a tuner on it, but it really didn't do much. I also swapped the 3.73 rear end for a 4.30. This really helped the low and mid-range pulling, but at cruising speed, didn't do much for it. All in all, it was a great truck and did the job. But you just have to remember that it is not a diesel, and pulling a travel trailer has a lot more wind resistance than a skid steer.

 

​​It's been mentioned a couple times , but depending on if you're 2wd or 4wd, you could do an axle swap relatively cheap and gain some towing performance. Used 4.10 or 4.30 rear axle is $300-500 around here through the junkyards, with at least 100K less miles than your current axle. I've seen matched sets of axles for sale privately online for under $500. Still gonna be $600-900 when it's all said and done, but that's about the same as a full header back exhaust system and you'll get better performance out of the gear change.

Almost all vehicles in the last 2 decades have a cold air intake from the factory. The intake box is almost always sealed to either the radiator support or the inner fender panel. I've seen a couple dyno tests that have shown the stock air box /intake usually isn't an issue until you've added about 50% more power naturally aspirated, or if you go forced induction. Even then, it's usually just the air box intake hole/tube that's the restriction and that can usually be taken care of quickly and easily with a hole saw and some pipe or ducting.

The 2v motors like the same bolt ons as most late model engines, but I wouldn't build a 5.4 for a work truck the same as a 5.4 for a mustang. In my opinion, first thing should be a tuner to take advantage of any other upgrades. Generally preset tunes are fine for "bolt on" motors because most of this stuff has been tested so many times by now they know what's what. You just need to know what you plan to buy for bolt on parts to match the tune. But you can start with a better than factory tune on the stock motor before you buy any parts. After that I'd do a full exhaust - full length headers, high flow y pipe, high flow cat(if needed) and 3-4" single pipe running in the stock location. You could run dual exhaust if you wanted. Choose a muffler and resonators to get the sound level you want. I'd get a bigger MAF. Then it's a toss up. Either bigger throttle body or one step up in fuel injector size. I've seen some dyno posts with the car 4.6s that show a step up in injector size can open up some upper rpm HP on stock motors, so that's where I'd want to start, but IDK what any of the trucks have. After that, maybe a better intake plenum. I personally wouldn't put underdrive pulleys on any type of working truck, but they're also an option to free up a few HP. After that you get into the real expensive stuff like cams, heads and forced induction.

Don't forget your transmission has to deal with any added power. Might want to consider an auxiliary cooler at least.