Cobb Dyno

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PeZ3o3
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Cobb Dyno

Postby PeZ3o3 » Mon Nov 21, 2011 9:14

Does anyone kno how accurate the cobb dyno is? I did a run getting onto the freeway a while ago and finally checked the numbers. 360hp 413tq. At best I would think thats at the crank. Idk if the numbers need to be modified or something. If that is right then im pretty f'in proud.... zoom zoom bitches
Think I drive fast? You should see me ski.
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erod550
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Postby erod550 » Mon Nov 21, 2011 9:14

Not accurate at all. They tend to vary each time you test it. I wouldn't take any hp numbers seriously from any electronic device that isn't a real dyno.
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PeZ3o3
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Postby PeZ3o3 » Mon Nov 21, 2011 9:14

thats what i figured. thanks man. stupid ap got me all excited
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~Barn~
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Postby ~Barn~ » Mon Nov 21, 2011 9:14

Just poll it like 10 times, throw out both the highest and lowest values, and then average the remaining 8.

That's Olympic-level accuracy, right there!
~Brandon~
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Shooter McGavin
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Postby Shooter McGavin » Mon Nov 21, 2011 9:14

Check out the Virtual Dyno Program, guys over on MSF.org have been saying its actually fairly accurate.

http://www.mazdaspeedforums.org/forum/f505/virtual-dyno-85289/
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RichB
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Postby RichB » Mon Nov 21, 2011 9:14

Shooter McGavin wrote:Check out the Virtual Dyno Program, guys over on MSF.org have been saying its actually fairly accurate.

http://www.mazdaspeedforums.org/forum/f505/virtual-dyno-85289/


I also use Virtual Dyno and I haven't verified my numbers but it is pretty consistent with each run. I never even tried the Cobb dyno.

With VD, you can definitely use it to see what gains you get from any mods.
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chickenwafer
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Postby chickenwafer » Mon Nov 21, 2011 9:14

When I used the AP dyno on my old turbo RX-8 I got anything from a best of 440rwhp to a low of 220ish rwhp. It's a joke.

The only performance measuring in the AP I found useful was the 1/4 mile and 0-60 timer. Since these use the factory speedo and odometer to compute these, they are pretty accurate. I would use the 0-60mph timer to gauge mods before and after, and it was actually pretty useful.
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PeZ3o3
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Postby PeZ3o3 » Wed Nov 23, 2011 9:14

right on thanks for the info everybody! im gonna check that program out, seems pretty cool
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