Dyno Result
06-30-2014, 08:14 AM
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06-30-2014, 11:14 AM
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07-01-2014, 06:17 AM
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07-01-2014, 08:24 AM
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These numbers are very much too high and not even close to any other numbers I've seen which are usually in the 290-310 range. Remember, dyno numbers are power to the wheels (BHP), whereas the numbers audi publish (333hp) is at the crank. You should expect somewhere between a 15-20% loss in the drivetrain so if audi didn't underrate, you should expect no more than 284hp at the wheels. This dyno is either not calibrated correctly (very easy to do) or he did his pulls in the wrong gear (should be 4th). These numbers would indicate audi underrated by around 100hp which is ridiculous where as the usual dynos that show around 290 would indicate an underrating of around 30hp (reasonable). I would love to think that our cars are making 350hp at the wheels from the factory, but that's simply not the case. 1/4 mile times also back this.
Last edited by Joe85STi; 07-01-2014 at 08:28 AM.
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07-01-2014, 09:06 AM
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These numbers are very much too high and not even close to any other numbers I've seen which are usually in the 290-310 range. Remember, dyno numbers are power to the wheels (BHP), whereas the numbers audi publish (333hp) is at the crank. You should expect somewhere between a 15-20% loss in the drivetrain so if audi didn't underrate, you should expect no more than 284hp at the wheels. This dyno is either not calibrated correctly (very easy to do) or he did his pulls in the wrong gear (should be 4th). These numbers would indicate audi underrated by around 100hp which is ridiculous where as the usual dynos that show around 290 would indicate an underrating of around 30hp (reasonable). I would love to think that our cars are making 350hp at the wheels from the factory, but that's simply not the case. 1/4 mile times also back this.
Last edited by slasher016; 07-01-2014 at 09:10 AM.
07-01-2014, 10:45 AM
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07-01-2014, 11:22 AM
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Not sure I understand the data either. If the graph is showing crank and the table below is showing data at the wheels, is the data saying there is 334-374 ft. lbs. of torque at the wheels? How is that reflected in the graph? It looks like the HP is adjusted in the graph vs. table below but the torque is not. Seems like an awful lot of torque for an S4... Maybe I'm just confused.