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Acceleration from start

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Old Sep 8, 2020 | 01:13 PM
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Default Acceleration from start

I've got about 6K miles on my 19 G/S and find that it seem to bog down when the accelerator is pushed hard from a dead stop. After a lag then it takes off like gang busters. Is this due to a dirty throttle body or something else mechanical. I considered the range unit but told that wouldn't help. Any ideas?
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Old Sep 8, 2020 | 02:16 PM
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Originally Posted by slburgie
I've got about 6K miles on my 19 G/S and find that it seem to bog down when the accelerator is pushed hard from a dead stop. After a lag then it takes off like gang busters. Is this due to a dirty throttle body or something else mechanical. I considered the range unit but told that wouldn't help. Any ideas?
M7 or A8? I noticed a dead spot in between clutch release and the accelerator in my 19 Z06 M7 and then added a Tony Mamo ported throttle body that has improved the initial engagement response.
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Old Sep 8, 2020 | 06:24 PM
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You might try a quick press to about 1/2 throttle, then roll quickly to full throttle once your moving. That technique might help with the hesitation.
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Old Sep 8, 2020 | 06:57 PM
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The stock program on my M7 would only Give 23% throttle at anything below 2200 rpm if I remember right. It ramps up from there but wide open throttle does not happen until you get above around 3000. I had an EFILive programmer sitting around waiting over ten years for me to get a new toy to use it on. I didn’t know how to tune, but forum member tblu92 hooked me up with a tune. Now I get wide open throttle at any RPM. The difference is night and day.
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Old Sep 8, 2020 | 07:50 PM
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Old Sep 8, 2020 | 07:51 PM
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Originally Posted by Random Dan
The stock program on my M7 would only Give 23% throttle at anything below 2200 rpm if I remember right. It ramps up from there but wide open throttle does not happen until you get above around 3000. I had an EFILive programmer sitting around waiting over ten years for me to get a new toy to use it on. I didn’t know how to tune, but forum member tblu92 hooked me up with a tune. Now I get wide open throttle at any RPM. The difference is night and day.
Thanks
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Old Sep 8, 2020 | 07:52 PM
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Originally Posted by TxLefty
You might try a quick press to about 1/2 throttle, then roll quickly to full throttle once your moving. That technique might help with the hesitation.
Thanks
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Old Sep 8, 2020 | 07:58 PM
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Is it possible that you're getting into Traction Control and the system is cutting power to reduce wheelspin?
On our 2017 Z51 A8, my biggest problem is getting traction 0-30.
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Old Sep 8, 2020 | 08:10 PM
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Time to consider a Soler TC & TB
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Old Sep 8, 2020 | 08:13 PM
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^^^
This. I found the Soler throttle body eliminated the bog/stall when aggressively accelerating from a stop.

The throttle controller just adds fun by increasing the responsiveness of the foot feed.
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