[MAXXPAY]

Dyno booked for Wednesday the 26th @ 9am.

Be waiting


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[Blown F-150]

I expect that I'll be hitting much lower numbers that you, but we'll see what she does!

 

[MAXXPAY]

Why would you expect that


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[Blown F-150]

I can only run 91 and I have stock DP's. I'm going to guess that I will be right around 400whp. If it's lower, I think I'll be buying DP's and hot-side CAC piping.

 

[MAXXPAY]

I can only run 91 and I have stock DP's. I'm going to guess that I will be right around 400whp. If it's lower, I think I'll be buying DP's and hot-side CAC piping.

Let's clarify, are you doing a remote dyno or just dynoing it? You should still make more on a dyno than 400?


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[RMB_Ryan]

Dyno booked for Wednesday the 26th @ 9am.

What is your ignition timing advanced to? What are you flowing in LB/MIN, and what psi?

Just straight questioning you now, but very curious how my base line tube file stacks up


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[Blown F-150]

Let's clarify, are you doing a remote dyno or just dynoing it? You should still make more on a dyno than 400?


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Just going to be some power pulls to get numbers. I'll log them for Mike so he can review. We've been tuning via data logs and I honestly think he's diong a great job. The truck feels really good, just have to soften up the 1-2 shift a tad as it's really harsh at the moment.

I know the Dyno I am using reads a bit low compared to Mike's DynoJet. I may even hit up one of the local DynoJet's or see if I can swing by a "friend of a friend" while back home to run on their's for free.

 

[Blown F-150]

What is your ignition timing advanced to? What are you flowing in LB/MIN, and what psi?

Just straight questioning you now, but very curious how my base line tube file stacks up


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Running between 6 and 7* of timing advance.

Peaking around 50#/min, with a nice steady increase through the revs.

Honestly not sure of the psi. I'm running Mike's config file for datalogging and haven't even tried converting the kpi he uses in his file. I'll run Grimm's config file and do a run so we know.

Again, all on 91. I really wish I could easily get good 93. I would make at least 30hp more.

 

[Blown F-150]

Alright Boys and Girls, let's see if this gets us some answers. I just went out an did a 0-70 pull while Datalogging with Grimm's config. This is just hitting the gas from close to a stop (3mph), nothing fancy. Traction control did kick in a as I forgot to disable. You can see where it kicks in on the 1-2 shift boost and speed dips).

Green line is speed and yellow line is boost (just for those that won't know right away).

Boost ramps up nicely so I don't roast my tires. Quick ramp to 15psi then a slow build to 17ish.

Ptown, any idea at what boost/timing you are running? Curios to compare.

 

[Blown F-150]

Same Run with Timing highlighted. Normally it's flatter once I hit it, but the TC kicking in, threw it off a bit.

 

[MAXXPAY]

Alright Boys and Girls, let's see if this gets us some answers. I just went out an did a 0-70 pull while Datalogging with Grimm's config. This is just hitting the gas from close to a stop (3mph), nothing fancy. Traction control did kick in a as I forgot to disable. You can see where it kicks in on the 1-2 shift boost and speed dips).

Green line is speed and yellow line is boost (just for those that won't know right away).

Boost ramps up nicely so I don't roast my tires. Quick ramp to 15psi then a slow build to 17ish.

Ptown, any idea at what boost/timing you are running? Curios to compare.

I'll have to do an actual log to get the timing.... I am hitting 18 psi max

EDIT: which may not happen until the weekend

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[Blown F-150]

No worries, I think it would be nice to compare. We have a lot of similarities, so comparing our numbers while looking at things like boost and timing may offer some good info.

I'm going to guess that you're running more timing than I am. Probably around the 10* mark.

 

[MAXXPAY]

Guess we'll have to wait and see


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[Blown F-150]

Did an oil change yesterday and put in a Magnaflow 6" round muffler in place of the MBRP resonator. Sounds much better now.

It sounds as good as I think I'll get it. So hope to either get it welded up local here, or wait till I'm out east and can use my own welder on the farm.

 

[Blown F-150]

Well, what can I say. The truck didn't put down the HP number I was hoping for (400), but I did some math and I shouldn't be too disappointed.


Running 91 pump gas only, not Meth or anything else goofy. Mustang Dyno that reads 10% low compared to DynoJets, loss of 10whp thanks to the bigger tires.


Enough with the excuses.


Previous run (91 Octane tune only)
284hp/381tq


Today (Intercooler, Turbo's, Intake, Cat-Back, ported Manifolds, 91 PRX tune)
342hp/449tq


So a 20% gain HP and 19% gain in Tq, with much better curves. I would sacrifice some Tq for some HP, if I could.


If I convert my final numbers to Dynojet Numbers, they are roughly 376hp and 493tq (@10%)


At the crank, rough conversion is 432hp 567tq (@15% of DJ #'s)

 

[Blown F-150]

Better dyno sheet to look at. This one has both HP and Tq on the same scale. The crossover in the above was really difficult to compare to anything else out there.

 

[Blown F-150]

Talked to the Dyno guys and starting to get at least SOME understanding of why my HP number is low.


Apparently the largest factor vs. a DynoJet (I ran on a Mustang Dyno), is that the Mustang calculates in weight and air resistance of a vehicle. It's more of a "real world" simulation. So since I have a big truck, the numbers will appear much different than a car with the same power at the crank. All the numbers Full-Race and the tuners are posting are closer to DynoJet numbers.


I'm taking this all with a grain of salt until I can get on a Dynojet. I'll be calling a shop today to book an appointment with them for when I return from Vacay. The purpose is two-fold. One so I can see the comparison and two so that my tuner can see a graph from a Dyno he is familiar with.


Using the "quoted" 10% difference to calculate what a Dynojet may be compared to my Mustang Numbers, doesn't work in my case. That percentage it based on a 3000# car (obvious weight and Aero difference).


So stay tuned folks, we will see if we can get to the bottom of this.


As I stated earlier though, if you look at percentage gains, it paints a much brighter picture.


All on 91 octane tunes


vs Tune only
20% gain in Peak HP
19% gain in Peak TQ


@ 5400rpm (vs Tune only)
49% gain in HP
53% gain in TQ


You can also compare numbers to this video. The truck was run on the same model/style of Dyno


They made 327whp and 354wtq. I beat that TQ number by almost 100 ft-lbs


Look @ 28:30

I'll be talking with Grimm tomorrow. If all this is true, than I have no clue why he pulled such awesome numbers.

 

[Blown F-150]

Booked a couple of pulls on a local DynoJet to get some comparative numbers.

I'm away on vacation starting Thursday (will put over 3500 miles on the truck in the next two weeks), but have it booked for when I get back.

Just for curiosity sake. The numbers will be closer to what you would see on MPT's Dyno (it's not a Dynojet). I'm guessing 370-380whp, but the idea is to actually run it and see.

Not bad for 91 octane from what I can tell, giving up almost 7* of timing vs. running quality 93.

Going to drive it and have fun in the meantime! The gains up top are very noticeable.

 

[MAXXPAY]

Booked a couple of pulls on a local DynoJet to get some comparative numbers.

I'm away on vacation starting Thursday (will put over 3500 miles on the truck in the next two weeks), but have it booked for when I get back.

Just for curiosity sake. The numbers will be closer to what you would see on MPT's Dyno (it's not a Dynojet). I'm guessing 370-380whp, but the idea is to actually run it and see.

Not bad for 91 octane from what I can tell, giving up almost 7* of timing vs. running quality 93.

Going to drive it and have fun in the meantime! The gains up top are very noticeable.

Have you considered having them remote dyno?


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[Blown F-150]

Yeah, I talked with Mike (via email) and asked. He thought that the limitation was fuel, there isn't really anything else he ca do until I can get better gas. Based on the logs, he thinks the tune is really dialed in. I would agree when you look at the Tq number. Not much more HP on top unless you can add timing.

I'm sure I'll put down better numbers on the Dynojet and be able to see where I can eek out a few more ponies without trying to go down the path of finding more octane. I really wanted a good solid daily driver and I honestly have it. I can get the quality of gas I need anywhere and not have to worry about it.

So in the end, I'm kinda stuck with my own limitations. I will look at adding Down-pipes and go from there. Probably won't happen for a while though.

It's all in good fun in the end, I downright embarrassed a RCSB Ram Hemi this morning, so I know the truck isn't too slow.