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2003 to 2007 6.0L Power Stroke Diesel 6.0L Power Stroke Diesel equipped Super Duty and Excursion

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Old Sun, June 12th, 2011, 01:38 PM
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Default Rev-X Testing

Well, we finally got around to picking up a nice little 6.0L so we could really start beating these things and see what they're going to handle. We did some dyno testing relating to calibration differences, but that's for another post. I want to cover here specifically what benefits we saw from adding Rev-X to our oil.

Here are the vehicle specs:

Engine: Late 2004 (2005 style heads)
Mileage: 284,000
Block: Stock
Heads: Head Job (Valves, Guides), Head Studs, Black Onyx Head Gaskets
Turbo: Stock
Injectors: Stock (Some newly replaced, though not sure how many)
Exhaust: Completely Stock (Cat still in place)
ECM: VXBC9N8
TCM: TQBF0NA
FICM: ARZ2AL10

The first thing we did when we purchased the truck was to toss the Inductive Heating (I/H) strategy in favor of a non-I/H version. It simply stands to reason that if the injectors (or specifically, the spool valves) are in good shape, there's no need at all for the inductive heating of the injectors.

Well, I found out on my first cool morning that the I/H strategy was covering up some slight deficiencies and stiction issues with the injectors. Starting was not a problem and the idle was reasonably smooth. However, a short trip up the road revealed an extremely noticeable miss above 25% throttle. This lasted for about 2 miles before the injectors warmed up enough to function correctly. Honestly nothing terribly unexpected from running this particular FICM strategy.

A few days later we got the truck over to the shop and strapped it down to the rollers just so we could see what's what. We did several comparisons with different base ECM and FICM strategy combinations, just to get some real-world numbers. The original VXBC9N8 strategy was a bit of an underperformer, although this what I had expected anyway. I switch to the VXBC6 an found modest improvements which, again, was what I expected.

After a few hours of swapping files in and out, I ended up with a solid 140 HP program that was putting down some pretty impressive numbers:

419 HP at 2800 RPM
820 Ft/Lbs at 2600 RPM
400+ HP from 2600 RPM to redline

Needless to say, I was pretty happy with those numbers and was ready to call it a day. Then a thought hit me. (I know, it's rare ) Just for grins, I grabbed some Rev-X off the shelf, poured it in the engine, and let the engine run for a bit while I checked other fluids, analyzed my earlier datalogs and dyno plots, and cleaned up a bit. After about 30 minutes, I decided to try a couple more runs. Now keep in mind that this vehicle had been running for about 3 hours solid, with the only off time being how long it would take to change programs (maybe 2-3 minutes) so the engine oil and coolant temps were reasonably stable.

I will regularly do a series of three dyno runs, disregarding the first, using the second, and referencing the 3rd for comparitive accuracy. The following dyno plot is done with this format. These are the 2nd run plots for the 140 HP program with and without Rev-X.

(click image to enlarge)


As you can clearly see, the Rev-X has made a significant difference in power through the entire RPM band, especially between 2000 and 2600 PRM. The was a 9 HP and 25 Ft/Lb peak gain, with the 400+ HP mark moving down to 2550 RPM.

What I also noticed (and you can't see on the dyno) is that over the next few mornings my cold running issue had been completely eliminated. The trucks starts up perfectly and I can immediately take off without so much as a skip or hiccup.

I am currently planning to produce some fuel economy results, but I unfortunately do not have any "before" numbers since I hadn't even used 1/4 of a tank before we put the Rev-X in. However, I'm very interested to see what my final economy does come out to... once I settle down and quit playing with the truck.

Up until now, I've been extolling the virtues of Rev-X simply based on the responses and feedback from our customers. In fact, that was how we found out about it in the first place. Now, as a Rev-X user, I must say that I am thoroughly impressed. Will it work for everyone? Who's to say. We've most certainly had non-positive feedback from customers who said it did nothing for them, but those type of feedback were pretty infrequent. In most cases, our customers did notice some positive benefits. I know I'm pretty happy with it.

I hope this information is helpful.
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Old Mon, June 13th, 2011, 07:58 PM
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well it`s about time you got a 6.0L....

i will be following this closely. should i expect somewhat close HP/TORQUE numbers when i am using 140hp program?

anyway, i am very pleased with all programming that has been done. haven`t had a chance to try 80hp dd program yet, been having to much fun with the other 2 programs.....

only issue i have been having is, 3-4 shift(bad flair), maily when the truck isn`t up to operating temp....may try to adjust shift pressure, see if that will help....

as for rev-x, it did help with my truck, but i did have to replace an injector(electrical issue)....i just put some rev-x in a truck(7.3) at work. truck is a very high miler(700000km) with 3 contribution codes. already replaced i injector, do to the fact, it threw a code for that cylinder everytime i did contribution test, the other 2 were hit and miss....will post results after truck is run for a bit....

once again thanks for all the great programming..... (just wish i lived closer, do some fine tuning on the dyno)
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Old Tue, June 14th, 2011, 11:28 AM
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Quote:
Originally Posted by atk View Post
well it`s about time you got a 6.0L....
Yeah, I know. Was waiting for the right deal to come along.
Quote:
Originally Posted by atk View Post
i will be following this closely. should i expect somewhat close HP/TORQUE numbers when i am using 140hp program?
Ideally, yes.
Quote:
Originally Posted by atk View Post
only issue i have been having is, 3-4 shift(bad flair), maily when the truck isn`t up to operating temp....may try to adjust shift pressure, see if that will help....
Keep me posted if it keeps doing that. We can make a slight change to the 3-5 shift slope that may help with the flare problem.
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Power Hungry Performance - The ORIGINAL in Ford performance tuning... Since 1996!
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Windows™ Vista and Windows™ 8 is a pain in my a$$!
Windows™ 10 is only slightly less annoying!
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Old Mon, June 27th, 2011, 06:14 AM
jimmyv13 jimmyv13 is offline
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A 6L has finally made it to my driveway and I am interested in running this rev-x stuff. Should I wait until I change the oil and go with this stuff and synthetic or how should I go about trying it?
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Old Mon, June 27th, 2011, 07:53 AM
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You can add Rev-X at any time. If you're about to change the oil, I'd wait. If you've still got a couple thousand miles to go, you can go ahead and add two bottles now.
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Old Mon, June 27th, 2011, 08:05 AM
jimmyv13 jimmyv13 is offline
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Good to know, thanks. I'll be changing the oil inthe next 500mi, give or take, so I'll add the X then. Also I have to wait for the stuff to get here, this stuff isn't sold anywhere locally.
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Old Sat, July 16th, 2011, 09:03 PM
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(
Quote:
Originally Posted by Power Hungry View Post

Keep me posted if it keeps doing that. We can make a slight change to the 3-5 shift slope that may help with the flare problem.

sorry it took me this long to get back too this(be very busy). the 3-5 flare seems the worst on the 140 tune under light throttle(i can live with it). the other 2 tunes seems to be ok. the truck has always had 3-5 flare, right from day i purchased truck. other then that, the 3 custom tunes work well, really impressed with the 80DD for power output(seems to work just as good as 100 performance tune)....the 140X just screems.....

my mpg hasn`t increased much, not what i was hoping for, but looking into that.

thanks Bill
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Last edited by atk; Sat, July 16th, 2011 at 09:17 PM.
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Old Wed, September 21st, 2011, 08:06 AM
jimmyv13 jimmyv13 is offline
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I finally got around to adding the rev-x and it made a pretty big difference. No idle lope at all and the overdrive stumble is completely gone as well. It still has a little bluish smoke at first thing, cold start up for a minute or two and will smoke a little when I take off after 5-10 minutes of idling. The smoke is gone before I get out of my sub though, less than a half mile of 20MPH running.

I'll probably add another bottle at my next oil change...I plan on going with 5W-40 at that time as well.
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