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Old Nov 24, 2002 | 06:22 PM
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Default locked? unlocked?

Has anyone done dyno runs locked and unlocked with an A4? How much difference?
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Old Nov 24, 2002 | 07:31 PM
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Default Re: locked? unlocked? (jfpilla)

The diff. will show how efficient your T/C is. Less is more and more is less.
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Old Nov 24, 2002 | 09:06 PM
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Default Re: locked? unlocked? (jfpilla)

327 unlocked, 339 locked - same day, vig 3000
441 unlocked, 457 locked - same day, ST-3500
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Old Nov 24, 2002 | 09:51 PM
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Default Re: locked? unlocked? (kp)

kp, which is the way we all report our results?
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Old Nov 24, 2002 | 10:30 PM
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Default Re: locked? unlocked? (jfpilla)

kp, which is the way we all report our results?
Depends, I usually used locked since its more comparible with a M6 car (and it looks better :) but I always say its locked ) even though unlocked is what you you will be seeing going down the track.. I think if you are looking to compare dyno HP locked evens things out a bit..

Some shops lock the converter to dyno, some dont - the converter will never lock up at WOT throttle on its own unless you do a switch or programming.

High horsepower/high stall cars should be dynod locked if you want the RPM on the graph to be accurate on a dynojet.

Most people use unlocked..


[Modified by kp, 10:31 PM 11/24/2002]
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Old Nov 24, 2002 | 10:43 PM
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Default Re: locked? unlocked? (jfpilla)

I think if you're trying to measure engine performance the converter needs to be locked (to minimize converter effects.) If you're trying to measure the power produced by your whole driveline, it needs to be unlocked. Ideally you'll do both.
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