The one good thing about a Dyno Jet dyno is that they all read the same way so its nice to compare the results from one dyno to the next and you can have some even playing field to use to make a comparision.

Blaming the customers for the practice that many shops employ to use correction factors to manipulate dyno readings makes no sense.

Al

 

Is this really true that people "want the highest number possible"?

In this video I explore the concept of an adjustable correction factor and what the ability to make arbitrary changes to the power reading means for the customer

http://www.youtube.com/watch?v=NOaaG-IpKLg

I am interested also in what you are saying about customers who are less concerned or putting less priority on tune quality and saftey and instead "going whereever will give them the highest numbers."

I found this concept so interesting I came up with the idea to play a game called "Dyno or No Dyno." I wanted to try and confront this power is everything additude and explore the boundries of the limits of power production and balance that against the saftey of the car and the reliability of the engine over a long period.

In this episode we made 500 whp on a FP Red on the stock clutch and we continued to make power until the clutch could not hold the power

http://www.youtube.com/watch?v=Rsw1fVLB2v8

700 whp vette

http://www.youtube.com/watch?v=s3pJyb5_uaI

SRT 4

http://www.youtube.com/watch?v=k1FpHcHI8aQ

While I certainly enjoyed the entertainment and fun value of playing Dyno or No Dyno on my videos its just my way of discussing and exploring this whole debate and conflict in the mind of the consumer about what is important about dynos and what are they used for.

I do believe that many customers do not understand the purpose and function of dynos and I also feel that many of my peers in this industry have contributed to the spread of misinformation and confusion by engaging in poor dyno use and explanation to customers.

These kind of dialouqes are very useful and I hope that having this kind of discussion will cause some customers to think more critically about how dynos work and what the "number" means

Al

 

But then you have to ask yourself, "Is this the kind of person that will change the settings between base and final?" There are only a few shops that I trust aren't doing that.

 

I tune the car and I run the logs through myself. Cant fudge nothing there. 4WS stays in my sig and always will cause hes supported me and my car since the start of Open Source tuning. I do mostly my own tuning now and if I need assistance, advise, or questions I call Tamer

 

Dynojet all the way.

They read the same from dyno to dyno.

Everyone who doesn't have a dynojet is always trying to compare to DJ #s, they will even go to the DJ to see what the car makes there.

I have never wondered what my car makes anywhere else................thats what happens when you own Dynojet.

I tune my car on the dyno, and hit the track, seems to work fine. Load is very similar to what we see on the track.


Sean

 

Kinda sorta what you are after here:

Turbo Magazine's Dyno Dash
http://www.turbomagazine.com/tech/03...ash/index.html

Dyno Tricks To Be Aware Of
http://www.turbomagazine.com/tech/04...ems/index.html

 

i agree with dynoflash and iveytune on this. And to ttp, yes, i did drove ams car, and now owned 3 evos. evo8, evo9, evo10

 

Wow. Didnt you send me a PM saying that you wanted to keep it civil and there wasnt any need to target anyone? In case your reading comprehension is again failing the whole purpose is to say that claiming corrected numbers is a waste of time. The only reason to have them is so Mike and I (or any DJ operator) can compare similar builds.

The ATV was used since 2-5whp is a significant amount when you are only making 50 something and it shows that corrected numbers arent correct. The car does what it did that day. That is the truth, you keep trying to twist it into something else no matter how much tech gets put in here.

Please remain civil and on point, posts that dont support tech and just make accusations will be moderated.

I have no problems with Mustangs, Dyno Dynamics, etc. I know that when they are setup right they read the same relative to each other. We use Dynojet because there isnt anything that we can to do to make them read twisted they just do what they do. I can compare my numbers with Mike. Bryan is one of my friends and gets away with what we let him, so him copying Lucas post was in good fun. He was using it show why he prefers the Mustang over the Dynojet. The correction factor part of this thread (which please recall is why it was started and what it is entitled) he also had input on. I really havent seen any of your input on it other than you tried saying we dont use it when its cold and use it when its hot. I posted graphs that show on a 650whp car its only around 25whp (corrected) but when you compare the temps the numbers dont seem to matter. The car makes what it makes.

The Gent with the Mustang supports my theory that when properly setup mustangs are the same around the country. When they have been certified by Mustang per their schedule its all good. I talked with Mustang for over an hour this year at SEMA, why I asked Slorice if he was there this year. Funny the answers you get when you ask who is certified and who isnt.

Kindly see your way out of this thread if you have no tech to contribute.

 

We have provided technical input as well as definitions of SAE J1349 correction factor, why it is used, how it is used as well as the differences in geographic locations effects on numbers.

Somehow these threads seem to always turn into dyno manufacturer wars. It is very easy to understand why Washington State dyno operators or those in the Northeast always vote for uncorrected numbers as they will most always be higher than the corrected numbers.

I would gladly trade climates so we could operate our Mustang dyno uncorrected year round in Washington state as the numbers would be higher than corrected numbers for us in your location.

Something interesting happens when you use weather correction in tropical climates near or over 90*F with 90% humidity and compare it to uncorrected numbers in the cool dry air of the northeast in Ohio.

The numbers start to make sense...

Here we will compare our highest output FPRed on 93 octane 30-31psi and compare it to the same build from a competitor on another Mustang Dyno in a cooler climate with less humid air. The boost and octane are the same, however in OH I am aware 94 is at the pump.

TTP Engineering top FPRed on 93:



Buschur Racing top FPRed on (reported) 93:

 

I though that Dyno Dynamics using shootout mode will always be the same also and you cannot play with the settings, so using shootout mode on any Dyno Dynamics dyno any shop will always read the same. Also the shootout mode reads very low.

 

What about the weather station on the Dyno dynamics. I saw one car pick up almost 40hp just by changing the air temp location.
In the end it's the same. Once the operator got the means to change the results then it will happen.

 

TTP, can you do me a favor and wake up out of your smog filled world of non-reality. I think everyone in this thread except you agree for the most part about not using weather corrections, which is the title of the thread. You have the highest reading Mustang Dyno on the planet and then you like to throw in your SAEMEA)(&Y)UG(&T*YH correction factor on top of it. Darn you are annoying as hell.

Your numbers are so far out of reality that even Dynojet owners say "DAMN THAT'S A LOT OF POWER ON THAT SET UP." I can assure you it's not cause you are a genius, it's because your dyno, correction factors and whatever games you are playing are whacked!

How about leaving the rest of us to discuss and you just go away?

I like how you say "another dyno shop" and then are so stupid you leave our shop name at the top of the dyno sheet. Wanna race your junk at the same power levels our car made at the same level? I'll give you 4 and the go.

 

There is not another Mustang Dyno in the southeast that has spoken to represent correction factors in the tropical Southeast USA. Why do you think that is?

I'll tell you. It is because any MD facility that has been in favor for uncorrected numbers lives in a climate where the uncorrected numbers are ALWAYS HIGHER thans the weather corrected numbers.

I see that you are upset and I would be too if I spent most of my time trying to convince your peers as well as the forum that our dyno reads high and then following all of your efforts many of which have gotten you in trouble have been proven false with our above post of the SAME TURBO, SAME BOOST, SAME OCTANE, SAME DURATION CAMS, SAME ECU AND MADE THE SAME WHP with your dynosheet a little torque lacking because of "compressor surge". The same mods, the same power, both on Mustang Dyno AWD-500 Dynamometers.

I think it is clear by the dynosheets alone that the two dyno's read reasonably close and it is also clear why you would want us to leave at this point.

Yes I would gladly take you up on a race. Rules are that the shop owners must drive their own cars and both cars would need to WEIGH IN ON THE SCALES BEFORE THE RACE. Should be easy for you. We will not need any lengths, but thanks for offering.

For those that missed the dynosheets of the two Evo's with the same mods, turbo and octane, boost:

 

thats the thing on shootout mode you cannot addujst anything. you run your car on any dynamics dyno then take it to a diff dynamics dyno put it on shootout mode and it will read the same numbers, but it read lower then any mustang dyno.

 

sounds like a greta call out, i would love to see the weight of the cars.