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Discussion Starter #1
I was at the Donnie smith show this weekend and ran into "those Dyno guys" booth. Talking with them they claim they can get the same HP/TQ out of a 103" as the FM 107" kit, both with head work. They were showing my examples of FM done bikes before and after they had re-tuned them.

So just wondering if anyone has any experience with these guys?

Thanks.
 

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Hi Brian!

Thank you for stopping at at our booth and taking your time to discuss your performance goals. It seems as though I may not have been perfectly clear though so if I may I'd like to clear that up.

I'd like to be clear about the following statement; we have available, comparison Dyno results from bikes we tuned. The information is there so that our customers make informed decisions so that they can make their own decision on what kit is best for their riding style, bike and budget.

FM puts out some very fine products and in fact we use some of the very same components such as Woods Cams, CP Pistons, axtell cylinders, S&S products, Ect.

The key to any build though is to carefully match each component to each individual build so that they complement one another and that's just what we do at "Those Dyno Guys".

We're not out to "dog out" any company or product. It's not in our business model or practice to do so.

We at "Those Dyno Guys" encourage our customers to do as much research as possible and shop the competition first, that way it's a level playing field and we are able to have a conversation about what's best for that customers bike, the components needed and finally the cost.

You work hard for your money and so do we! Performance improvements are nothing to take lightly so if anybody has questions as to what parts or components would be a great fit for their build, please do not hesitate to call us. We are here to help!

All the best!
Matt-Those Dyno Guys


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I see all the Dyno Guys sheets on the Facebook page. All using STD correction factor. Fuel Moto uses the more comparable SAE correction factor.

So - Shave about 5% off of the Dyno Guys numbers, then compare.
 

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FM does not specifically use only Sae. There are several instances where std is used. If you look on the run notes screen you can see the correction factors. Depending on conditions the correction factor closest to 1.0 ratio will net the most accurate correction. Sometimes sae does corrects under that 1.0 correction factor and that is when the other corrections are useful to give accurate readings. This is industry wide practice.


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FM does not specifically use only Sae. There are several instances where std is used. If you look on the run notes screen you can see the correction factors. Depending on conditions the correction factor closest to 1.0 ratio will net the most accurate correction. Sometimes sae does corrects under that 1.0 correction factor and that is when the other corrections are useful to give accurate readings. This is industry wide practice.


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I'm not sure you understand correction factors and what they do. If you want to show what the bike did right there you would use CF UNCORRECTED. SAE corrects to the average atmosheric condition in Detroit. (Temp, humidity, pressure, etc). STD corrects to a whole different regions weather. The only shops in the industry that advertise other than SAE results are either 1: clueless or 2: wanting to show higher numbers.
 

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Any MN riders use "those Dyno guys"???

Hi HarleyTuner.

The Dynojet Winpep7 software has its own algorithms to calculate torque. Climate conditions, eddy current load, altitude all come into play. The correction factor uses data imput to calculate the numbers so uncorrected isn't taking in account any of those variables.
In order for the Dyno to absolutely make a true "uncorrected" horsepower run would be to unhook any inductive leads from the motorcycle so that the Dyno only measures drum speed. You won't get a graph to print out but the horsepower number will be there.
The correction I'm referring to is circled in the picture. The closest you can get this number to 1.0 is going to be your most accurate number, in this case it's correcting 2% over the 1.0 correction factor. ImageUploadedByMO Free1429101424.391781.jpg


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Hi HarleyTuner.

The Dynojet Winpep7 software has its own algorithms to calculate torque. Climate conditions, eddy current load, altitude all come into play. The correction factor uses data imput to calculate the numbers so uncorrected isn't taking in account any of those variables.
In order for the Dyno to absolutely make a true "uncorrected" horsepower run would be to unhook any inductive leads from the motorcycle so that the Dyno only measures drum speed. You won't get a graph to print out but the horsepower number will be there.
The correction I'm referring to is circled in the picture. The closest you can get this number to 1.0 is going to be your most accurate number, in this case it's correcting 2% over the 1.0 correction factor. View attachment 189041


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Again, you clearly don't understand CF's and how they are used or how to use them. I have been running Dynojet dyno's for 14 years. Currently I own a Dynojet 250i and run WinPep7 everyday. I was at a shop before relocating and opening up mine that also had a 250I that the converted to WinPep8 so i'm familiar with that as well.

Look at any dyno run in UNCORRECTED and you'll see that it is always 1.0

here's one I just did the other day
 

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Correction factors take the actual run condition (the temp, humidty, barometric pressure etc.) that the bike was run in the day it was run on the dyno, then it mathematically calculates what the bike would have made in a standard climate.

SAE corrects to a standard of 29.23 InHg (99 kPa) of dry air and 77 F (25°C).

STD corrects to a standard of 29.92 InHg (103.3 kPa) of dry air and 60 F (15.5°C)

The SAE standard was calculated using the average weather conditions in Detroit Michigan over the coarse of a year. This is the proper CF to use in the united States for comparison.
 

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Discussion Starter #13
Good info

Thanks "Those Dyno Guys" for the response and I apologize if I made it look as if you were dogging FM. I did come across a little bit like that in our conversation, but I understand that you were just giving me some information about what your company has done. I am in sales, so I understand how that can be misunderstood sometimes as dogging the others.

As for CF's, I don't really care what the dyno numbers are. I just want a builder that can give me a good build, reliable build, know what they are doing, stand behind their work, and know how to tune the bike when they are done. HP and TQ numbers are for comparisons only. I want to have a bigger smile on my face, and a bike I can ride and not worry about. Bottom line.

So with that said, I will be in contact with "those dyno guys" to see what kind of components and costs would fit me, my riding style, and my budget.

Again, thanks for all the commentary.
 
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