Towing power cant put my finger on it? Power?

[Duanesz]

I just got a 2000 250 crew cab short box 4x4. I am towing my 26ft camper and the weight is about 6500 will all the stuff in it. I towed it to the campground this weekend like 120mi in 85 deg weather with the air on. towed well but seems like its a little down on power. I have heard people say you wont even know your trailer is even back there with that 7.3. Well i can most definality feel it back there. I ran and got fuel and I got 11mpg with 40 of the 120 miles city towing. I live in michigan and there are not any hills the small grades the truck going 65mph would pull with out shifting out of overdrive. Boost was around 5-6psi at 65mph. It needs a trans cooler temps in stop and go city got up to 190 but on the e-way came down to 170deg.

I am not sure if its me or what but truck runs good unhooked boost at wot is 14psi so it seems like its running good. I am going to do muffler delete and get php tunes soon. I have a dialabo tuner now and have been running the 40hp tow tune which dont feel much diffrent than stock. but when I put the 65hp tune the truck runs like a raped ape. I wish it had that power when towing.

Duane

[Dietoremain]

you have the stock muffler? thats your problem there! Haha. and get a custom tuned chip. way way way better..

[Zaairman]

You've got a boost leak somewhere... A stock truck should hit 15-16 PSI. With your Bullydog tuner, you should be seeing 18-19 PSI.

[Duanesz]

It was like 5-6 psi cruising along not getting into it. stock it sees like 14-15psi wide open. when I run the 65hp setting I see 18-20psi.

[Dietoremain]

sounds normal.. just remove the stock exhaust, get a ww, diy intake, let her breatheee!

[Duanesz]

Going up to muffler shop to see how much to do the muffler delete. How loud is the truck without the muffler?

[Foamy]

Without a muffler it wont be too loud. With the exhaust exiting out in the stock location it is far enough away from the cab that you wont notice it too much. Plus a straight pipe on a powerstroke is a wonderful sound so who wouldn't want to hear it..well for a 6.0 anyways..but a 7.3 still sounds good.

[Tick ST]

I had the same problem pulling my camper back from a NASCAR race, The next day I got a muffler,cat delete, runs so much better. The noise is not bad and sounds good. 97 7.3, 320000ml.

[Duanesz]

Has there been dynos of just the straight pipe mod what kind of power does it make?

[tubular031]

no extra power just allows things to run cooler and then you can put more tuning in there to make more power.

11 mpg at 6500 lbs? that sounds right about what I get with mine. I have the diy intake and a BTM. stock vs tunes only gives me more power with the same MPG. I pull my enclosed trailer at 7k loaded and yea I am a little slower to get on the freeway but one I get up to 65 I hit the cruise control and pretty much forget its there. now my 12k 5er is another story!