Yarrowsport dyno day results: Post here!
07-09-2005, 04:33 PM
#14
I dunno, man. The more I think about it the more it makes sense
275 with a 28% drive line loss is 350 crank... which is exactly what a stage 2+ S4 should be. I'm not sure what was up with your car, but 210 seems pretty low... tuning maybe? Johnstr from AW had a 1.8T A4 with a t28 and h dynoed at something like 216 (a 4 gear pull for some reason) but he was dead even with me when we raced. I mean, you guys have a much lighter car than ours too... I dunno though. Oh and what smells is your car... being behind you on the way there got me a face full of catless exhaust, yuck!
07-09-2005, 04:46 PM
#16
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Blonde Moment...
APR claims that on the crank hp for a Stage 1 is 318. I dyno'd at 239.8whp. That means I have a 24.6% loss from my crank. Yarrowsport uses 33% for audis to estimate the crank hp. So if Yarrowsport is correct than yes it would be 360 on the crank. But that seems like quite a large difference. I think I would trust APR's number more than Yarrowsport.
07-09-2005, 04:58 PM
#18
bah, I'm a poly sci major. Math is over-rated :-p
I was thinking along the same lines as Shayna... but i can't blame blondness, haha. I guess it doesn't make sense then. There is no possible way I have 385 hp as a stage 2. I thought that dyno read low, seems like it was reading high???
07-09-2005, 05:03 PM
#19
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Physics 101
How about in addition to correcting everyone else you check your own replies:
1) Objects don't "fall" at the same rate, they accelerate at 32 ft/s^2. Falling implies speed and we all know the difference between speed and acceleration.
2) Objects only accelerate at the same rate in a vacuum, making that test inadmissable in a court based on simple physics. It is nearly impossible to estimate the speed of an object dropping from 3.5 - 6 feet and come up with a precise conclusion. Try it with a simple motion detector (emitting sonar pulses) and you get a different final speed everytime. Anyone who has taken general physics can tell you that.
1) Objects don't "fall" at the same rate, they accelerate at 32 ft/s^2. Falling implies speed and we all know the difference between speed and acceleration.
2) Objects only accelerate at the same rate in a vacuum, making that test inadmissable in a court based on simple physics. It is nearly impossible to estimate the speed of an object dropping from 3.5 - 6 feet and come up with a precise conclusion. Try it with a simple motion detector (emitting sonar pulses) and you get a different final speed everytime. Anyone who has taken general physics can tell you that.