Fastlane Tune - Are these numbers good?

[Iwantone2]

tp_preformance's L99 dynoed stock at 354HP

What the crap did I do wrong

My L99 with cat-back and CAI dynoed the following:

347 RWHP, 359.67 TQ STD
337 RWHP, 350 TQ SAE

[firengnred]

tp_preformance's L99 dynoed stock at 354HP

Somethings amiss with that. No other STOCK totally unmodified L-99 has posted numbers close to that. None that I'm aware of. Even on 93 octane as opposed to our 91.

[Soundwave]

Somethings amiss with that. No other STOCK totally unmodified L-99 has posted numbers close to that. None that I'm aware of. Even on 93 octane as opposed to our 91.

That's why I was ambiguously asking why in the hell they used SAE 5 smoothing at ALMOST SEA LEVEL. To me it seems like they inflated the numbers as a sales pitch. The gains are still there with their other products on the same graph, but inflated none the less. All the smoothing does is jack the numbers up.

In my old car (I'm at 5500 ft that makes a HUGE DIFFERENCE power wise) the difference between an elevation corrected (SAE SMOOTHING) and an un-corrected dyno graph was 60 HP. The graph should be SAE smoothing 1 maybe. You punch in a couple factors before printing out the graphs.

Thanks for posting your graph dangeruss

[Dangeruss]

Somethings amiss with that. No other STOCK totally unmodified L-99 has posted numbers close to that. None that I'm aware of. Even on 93 octane as opposed to our 91.

I was kind of wondering why they hijacked my thread in the first place!

[firengnred]

That's why I was ambiguously asking why in the hell they used SAE 5 smoothing at ALMOST SEA LEVEL. To me it seems like they inflated the numbers as a sales pitch.

I'm sorry, who is "they"?

All the smoothing does is jack the numbers up.

Someone correct me if I'm wrong but, the smoothing does not elevate your numbers. All it does is "smooth" out your line on your graph so it doesn't look like an EKG strip.

why in the hell they used SAE 5 smoothing at ALMOST SEA LEVEL.

SAE correction simply adjusts your numbers based on atmospheric conditions such as humidity, temp and so on to reflect what your numbers would be at sea level. Theoretically I would pull more HP at sea level with the same car as you would at 5000ft because of atmospheric differences. SAE seeks to "correct" your numbers at 5000ft to reflect sea level performance, placing us on a level "playing" field regardless of location.

[Soundwave]

SAE correction simply adjusts your numbers based on atmospheric conditions such as humidity, temp and so on to reflect what your numbers would be at sea level. Theoretically I would pull more HP at sea level with the same car as you would at 5000ft because of atmospheric differences. SAE seeks to "correct" your numbers at 5000ft to reflect sea level performance, placing us on a level "playing" field regardless of location.

Exactly, that's why I said it really doesn't matter, as long as you're gaining something from your mods/tune.

I was just pointing it out because tp_performance posted a dyno graph claiming really high numbers for a stock car that had high SAE smoothing. It does correct for all that stuff like you said, which in turn make your numbers higher. I encourage you to pay the extra $50 and spend some time at the dyno and play with that WINPEP software. Essentially all it does is jack your numbers up. Uncorrected vs. corrected (on a dynojet because that's the only one I've played with) is always higher no matter where you are. I'm not trying to argue, do a simple google search and it will tell you what the smoothing is exactly. You can even d/l the winpep software.

[Soundwave]

Just pulled this off a website, gives a quick explanation.

Things to Know
Correction Factor
A key element to producing comparable dyno charts on a global basis is the Correction Factor, SAE Standard J1349, which applies the following weather station data--atmospheric pressure 29.23, air temperature 77 degrees Fahrenheit and humidity 0 percent--to all tests. These exact figures allow apples-to-apples comparison of runs from different cars, different facilities, etc. So graphs with SAE-corrected power were made to this standard. The dyno in question must have a weather station and the proper software in order to generate SAE-corrected data.

Smoothing
An option on Dynojets, smoothing takes a jagged graph and delivers a more readable curve. Smoothing of the graph can be done by entering a value between one and four at the appropriate place in the computer.

Alignment
The alignment of the vehicle being tested does affect the outcome of a dyno test. So if a car is dyno'd, then run over a curb, thus altering the toe or camber, the car may not have repeatable runs. This is especially true on Dynojets.

CorrectIon Factors
Correction factors are used by both dynos to account for varying atmospheric conditions such as temperature, pressure, and humidity. The measured horsepower and torque are multiplied by the correction factor to obtain the corrected values. This is similar to the corrected times and speeds provided by some quarter mile tracks. Theoretically, you can dyno on a hot day in the high altitude of Denver and on some other cool day at sea level and produce the same corrected horsepower even though the observed horsepower you are producing at each location is different. Both dynos calculate a correction factor based on a Society of Automotive Engineering document (SAE-J1349). When testing was performed on the Dynojet, the correction factor was 1.10, which means the observed numbers were multiplied by 1.10 (adding 10 percent) to get the corrected values. The correction factor for the day when testing was performed on the Mustang dyno was 0.9595 (removing 4.05 percent). The correction factor when road-testing at
Keystone Raceway was 0.962, a correction reduction of 3.8 percent

thread jack from hell OP. You made good numbers still.

[tp_preformance]

Iwantone2 is yours a 6speed manuel? or the a6? what size exhaust?

[Roger Ramjet]

Originally Posted by Soundwave

If you scroll through the different SAE settings they just get more and more aggressive, meaning that your numbers are just higher and higher. It really doesn't matter which you're using, as long as you're using the same one every time and you're gaining power from your mods/tune. I was just wondering why use a SAE 5 (highest correction) at such a low altitude. The weather smoothing is always part of it, I understand that. It's more directed towards the tuning guys who posted the dyno sheet.

One more time!
There is no such thing as SAE 5. There is SAE period - that does the weather correction only.

Then there are a series of smoothing filters that can be applied to the raw recorded data. The bigger filter numbers are more aggressive in filling the peaks and valleys. More filtering can distort (up or down) from the real recorded data. That's why I said to use the filters but always look at the raw data to see how bad the filter skewed the curve. SMOOTHING FILTERS HAVE NOTHING TO DO WITH THE WEATHER CONDITIONS OR CORRECTION.

[BLACK10]

Originally Posted by BLACK10

That was my car. On thier dyno it put down 407rwhp. I went back to the shop that did my baseline and it made 430rwhp, which is around where it should be . Take it from me, dont worry about the numbers. if you are, get it dynoed at another shop(no tuning, just dyno). i do think Fastlanes's numbers are a little low, but their tuning is AAAA++++ for sure.

[tp_preformance]

Originally Posted by firengnred

Somethings amiss with that. No other STOCK totally unmodified L-99 has posted numbers close to that. None that I'm aware of. Even on 93 octane as opposed to our 91.

there is nothing amiss on that dyno that was done stock the day it came off the show room floor. with like 5miles..

[firengnred]

there is nothing amiss on that dyno that was done stock the day it came off the show room floor. with like 5miles..

Damn impressive then. You got yourself a Wednesday car. That's the best STOCK numbers I've seen. By a large margin.

[Dangeruss]

Originally Posted by BLACK10

Don't be angry black.

I'm really not trying to say anything bad about Fastlane...just want to see some better numbers on the dyno. It's also tougher on me because I didn't get a baseline at the beginning. I just need to find some time to get another dyno pull to appease my curiosity.

[BLACK10]

Originally Posted by Dangeruss

Don't be angry black.

I'm really not trying to say anything bad about Fastlane...just want to see some better numbers on the dyno. It's also tougher on me because I didn't get a baseline at the beginning. I just need to find some time to get another dyno pull to appease my curiosity.

just messing with ya