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Old Tue, June 29th, 2010, 12:27 PM
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Jackpine Jackpine is offline
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Sounds like he wants to make it firmer, Longshot.

But, to the OP, there's no way for you to tell what the setting is. All you'll see are "zeros", which represent the "tuned" settings. They are certainly firmer than stock, but that's about all we can say. I don't know if Bill makes them firmer than the "canned" tune settings (which are also firmer than stock) though.

Please understand, the "firmness" settings represent a time change in the interval between clutch release in the old gear and clutch lockup in the new gear. The interval is measured in milliseconds and each number in the firmness setting is a percentage change in that delay.

So, if the "zero" value delay in your 1-2 shift was 500 milliseconds in your canned tune, your +12 setting reduced it by 60, making the new delay 440 ms.

SMALL changes shouldn't hurt anything, but I'd be reluctant to increase the first two much above 10% and the third should be less. If you make the interval too small, you put sudden, sharp stress on the drivetrain. If the interval is too long, the clutches wear more quickly.

Bill has balanced these two conflicting results in his custom tunes, so just don't make big changes. You really DO NOT want to feel a hard "kick" in a shift, because that is stressing things. The shift should be smooth and positive, with no "dragged out" feeling.

- Jack
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