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Ok I forgot my memory stick adapter so no pictures at the moment but here's what's gone on so far.
I took a video with audio of the stock exhaust and it being rev'd for benchmarking purposes.
The car was then put on the Mustang dyno and several runs done. The car consistently put out 276-277 HP at the rear wheels. Yes this is down from the 281-283 it achieved months ago but still higher than the original 267 before the air intake mod. Obviously the gas is different, the weather is much hotter and I've since installed the EVO intake so it is hard to do a direct comparison other than to say that the car still makes more HP than it did stock, even in hotter weather, so something withe the intake, whether it be EVO or baffle removal or both have produce 'some' horsepower gain on my car. We were doing these dyno runs to set a baseline before the Milltek exhaust goes on and before any ECU tuning from GIAC.
The car is being rolled off the dyno now, will cool down and then be put on the lift for the exhaust install. Steve Decillus (sp?) is the tech at Imagine Auto working on my car under the supervision of Stephen Kaspar the owner of IA and PCA Tech advisor.
Stay tuned!
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Evolution Motorsports
http://www.evoms.com
We exist to satisfy our customers' addiction to speed and passion for high performance. We engineer, manufacture and offer the highest quality performance components for an elite group of extreme individuals. We are obsessed with delivering the ultimate level of performance through developing superior quality products, stringent testing and unparalleled customer service. Over time, we endure, evolve, persevere and have become omnipotent in our industry.
Different dyno results are to be expected with different conditions and operators so the comparision with the earlier run should not be bothersome and your results fall well into the statistical expectation. Looking forward to the rest of the story.
The first time you had your car on a dyno was it a Dyno Jet or Mustang Dyno. The only reason i ask is because the 2 dyno's give different results. I have battled this reason ever since i started dynoing my cars and always heard these differences. So i finally contacted the manufactures and got my answer. Mustang dyon's do give you a lower number b/c the computer software they use has more variables in it. The Dyno Jet gives you the most specific numbers. At least that is what the tech department told me.
The dyno being used is the same, a Mustang 4 wheel dyno, about an $80,000 piece of equipment, computer controlled and each car is calibrated on the dyno before it is even run. I'm pretty confident that it is giving accurate results. My prior runs have all been on this same dyno.
I have heard that different manufacturer dynos will give you different results, with each manufacturer claiming that their results are more accurate. Mustang is certainly a top-notch dyno maker so I'm confident that their results are as accurate as any, and for the purposes here we are comparing before and afters on the same dyno so we are ruling out the use of separate dynos. I can say the computer screen on the Mustang dyno reads out a wealth of information about what the car is doing, I captured a few screen shots on my camera to show this later. There is no shortage of info on the Mustang if that is what you are asking.
I think the point is the amount of relative change resulting from the mod, not so much the absolute result value. Good thats itson the same dyno as in the past.
i have had several of my cars on the mustang dyno and i do agree about the fact that your doing before and after on the same dyno so everything will be accurate. I have an appointment with the dyno this week as well so I'm curious to see my results vs yours. My car will dynoed with the air re stricter removed, BMC air filter, and the fabspeed cat back exhaust. Then next week with headers and ECU upgrade. This should be interesting to see [img]/fckeditor/editor/images/smiley/MWPX/thumbsup.gif[/img]
Fabspeed
Fabspeed manufactures the world’s highest quality “MAXFLO” T304 Stainless Steel exhaust systems, carbon fiber style high performance air intake systems and more for Porsche, Ferrari, Maserati and Lamborghini cars.
Dyno numbers will vary but as long as you have a base run to compare to then you should be okay. I prefer to stick to one dyno so you don't get confused with the numbers. The only true way to get actual HP numbers is to remove the engine and do an engine dyno or whatever it's called. I've seen vids of that done.
__________________ Mike
2006 Midnight Blue Cayman S
