Subject	After I smoothed out the unwanted initial power surge >>
Posted by	Gordo 93TT Daytona on August 26, 2012 at 11:00 PM
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In Reply To	I did something similar posted by Stadsport (PHX) on August 26, 2012 at 06:18 PM
Message	... A conscious decision made to trade a steeper power curve on the way up, for a smoother on/off-throttle transition on the way down. I choose the later because I wanted to let the engine freewheel for a moment before forcing it into engine-braking. This was done to improve low speed drivablity in the 800 to 1600 rpm ranges. That also helped solve the driveline clunking issue caused when a lugging engine oscillates back and forth between 15' and 40' because the TPS Idle is on and then off. Believe me, I tried more than a few variations in this zone before I came up with the tradeoff which suited me. As for usable power, very little was changed beyond 2000 rpm in the load zones beyond TTP values of 12. So the power comes on when I want it; but not so soon as to become a hindrance. Nothing is changed anywhere near turbo boost so the top end remains as it was. _________________________________________________
Follow Ups	Tiiming Map Changes Fixed On/Off Throttle Smoothness and... - Gordo 93TT Daytona 19:23:57 08/25/12 Interesting, now check your cruising gas mileage - ztunerz 00:14:34 08/26/12 I would expect that gas mileage at 50 mph, or more, would - Gordo 93TT Daytona 12:47:09 08/26/12 good results except i am a tad concerned with mileage - ztunerz 13:04:23 08/26/12 That's where the Labjack could have helped. I don't know if - Gordo 93TT Daytona 13:12:33 08/26/12 To be clear, this drivability issue does not affect all Z's> - Gordo 93TT Daytona 13:04:04 08/26/12 i have seen the effect you mentin in some stock z's also. (n/m) - ztunerz 13:05:26 08/26/12 Glad to see you managed to solve this. I'll make sure to - treese88 13:17:19 08/26/12 Ash gets most of the credit. He started me in the right > - Gordo 93TT Daytona 13:32:32 08/26/12 This is interesting, I have quite a surge between 1500-2000 - LitlElvis 14:33:51 08/26/12 I did something similar - Stadsport (PHX) 18:18:11 08/26/12 After I smoothed out the unwanted initial power surge >> - Gordo 93TT Daytona 23:00:48 08/26/12
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