MD/VA/PA Fall Dyno Day and Meet Oct 15 '11 - Page 7 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 10-19-2011, 09:53 AM   #121
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Originally Posted by shuiend View Post
I think if you are not in the 1to1 gear the amount of torque you output will be off. In lower gears you make more torque. Since the dyno measures torque and then uses the formula compute hp. So if you are not getting a correct torque value your HP will be off.
the gearing only affects the rpm scale of the plot, not the output.

remember last year when he setup the dyno for your 5th gear, then ran it in 4th and you made 200rwhp at like 3K? Without any changes and just running it in 5th, you made the same power, just at the correct rpm.
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Old 10-19-2011, 02:21 PM   #122
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the gearing only affects the rpm scale of the plot, not the output.

remember last year when he setup the dyno for your 5th gear, then ran it in 4th and you made 200rwhp at like 3K? Without any changes and just running it in 5th, you made the same power, just at the correct rpm.
Yes. This can produce interesting dyno graphs.

BTW lars since you were precockupied with the twilight zone or whatever the **** it was you were watching last night:

don't critically examine your spool data from dyno logs. depending on how the car is loaded, you will spool sooner or later. To examine spool, it's best to just have a street you can drive on over and over again while logging. If it has an incline, make sure you log the same direction (uphill or downhill only). Assuming constant temp/humidty, the street will always be the same.
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