<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SmokeyWren</div><div class="ubbcode-body">Mileage? Don't kid yourself. When you make it run better, it feels so good that you automagically mash harder on the go pedal. So even though it's more efficient, your fuel mileage won't improve - unless you have the willpower to stay out of the go pedal. [img]/forums/images/%%GRAEMLIN_URL%%/crazy.gif[/img]
When you say "power", I'll assume you mean daily driver and towing machine - not a race-winning race car. So you need almost exactly what I have:
You need four things, and one of those four thing is a performance tune (computer program). But DO NOT
install a performance tune until after
you have gauges.
"Gauges" means three new gauges. Pyrometer for monitoring and controlling exhaust gas temp (EGT). Turbo boost (manifold pressure) gauge for monitoring and controlling boost. And a good tranny temp gauge to protect your expensive automagic tranny. I prefer ISSPRO Enhanced Visibility (EV) gauges. You can buy everything you need for $300 from http://www.dieselmanor.com
After gauges, you can add the other three mods in any order, but here's how I'd do it:
Exhaust. Your factory muffler is a huge drag on performance. Replace it with a performance muffler, or with an entire custom exhaust system. As a minimum, replace the muffler with a Walker BigTruckMuffler (BTM) #21470. Better yet is to replace the entire exhaust system with a 4" mandrel-bent exhaust system that includes a 4" performance straight-thru muffler.
Intake. Least expensive is a Tymar or Tymar clone for around $100. It works good, but adds a lot of racket (NVH) coming from under the hood. Better and quieter is a Ford Extreme Duty Air Intake System (AIS) for around $200. And if you want the best and can afford it, then go for the aFe Stage II with ProGuard7 filter for around $500.
Last is the go-fast performance tune. Right now the big name in 7.3L tuning is Jody at http://www.dp-tuner.com
- he has several ways to install a new tune in your PCM (computer that controls the engine and tranny).
One way is to replace the PCM with a new one that includes the one tune you can't live without. Probably his 80-E (adds 80 HP and improves fuel economy).
Another way is with a programmer/tuner that includes 3 or four of your favorite DP-Tuner tunes. I have one with 80-Economy, 60-Tow and stock, plus another tune I don't use. 80E is for unloaded, 60-Tow is for towing, and stock is in case I have to take the truck into a Ford dealer.
Another way is the "chip" that has room for several different tunes. If three tunes may not be enough for you, or if you want change-tunes-on-the-fly capability, then that's the one you want.
Walker BTM muffler: Can be ordered from any NAPA store or Advance Auto Parts store under part number 21470. Available on the internet from several sources, including http://www.summitracing.com
under part number 21470. You'll also need two 3.5" muffler clamps available at most big-truck parts stores but not at normal auto parts stores. I had mine installed by my local Midas Muffler Shop, and they charged me less than $50 plus the clamps and muffler I provided.
Another source for the BTM and clamps that is a former sponsor of TheDieselStop is
- They're only a coupla bucks higher than Summit, but they have the clamps so that will save you a trip to the truck parts store.
Exhaust system: http://www.dieselperformanceparts.com
- Mark Craig has been an avid supporter of TheDieselStop since Day One, and he has what you need in the way of exhaust systems, as well as aFe intake. And he now handles ISSPRO gauges too, and he'll probably meet DieselManor's price if you lean on him. [img]/forums/images/%%GRAEMLIN_URL%%/smile.gif[/img]
Ford AIS = http://www.powerstrokeshop.com
aFe Stage II with ProGuard7 filter = http://www.dieselperformanceparts.com
Tymar clone = http://www.spdiesel.com
- the button for the SP-Diesel Intake is busted right now, so call Sean and chew him out. [img]/forums/images/%%GRAEMLIN_URL%%/smile.gif[/img]
Genuine Tymar Intake = http://www.tymarperformance.com/
- Dale is a little slow in completing his website, but the phone number and e-mail addy are there, so contact him and chew him out too. [img]/forums/images/%%GRAEMLIN_URL%%/smile.gif[/img] </div></div>
That's a great post- in fact it's what I've done over the last 3 years. Also a wicked wheel and a BTS tranny when the stocker blows out.
Now how about a list like the above, but going to the next level with bang-for-the buck. Every time I post a question about "What's next?" after the stuff in my signature, I get a list of: turbo ($2k), injectors ($2.5k), dual HPOP ($2k)- all at the same time. Well I don't have $6,500 for 100 more HP- trying to keep under the magic 400 RWHP with my PMR's. These stock duramaxes and dodges are getting tough to beat. At least I can pull ahead of a stock '08 6.4L truck...