CAMARO6 - View Single Post

cmitchell17 · 11-08-2021, 10:58 PM

I am glad someone else notices this as well, my 2017 SS is the same way. I've tried smoothing the driver demand and all kinds of other stuff in HP Tuners, and I also have a Solar TB as well.

The "problem" is still there. I put problem in quotes because I think this is just the sorry way GM programed the car to drive. There are times I swear the throttle position has moved, and I have even tried to catch it on a log doing it and I see now change in accelerator, throttle, or timing or anything.

The absolute worst is trying to drive in a very slow stop and go traffic jam. Especially when you start from a dead stop and inching along below 10 mph in first gear and have to let off, then start going again. If I didn't have the years of driving experience in this car or someone else was driving, I am sure they would press the gas to go again and if the car was still in first you will get a huge jolt and whiplash. The 8L90 does have a pretty low first gear but I know there are better ways to program and compensate for these things for driveability.

One thing I have found that maybe helps just a little bit, is where you have your foot on the accelerator pedal. It is easy and usually more comfortable to drive with your foot pressing the very bottom of the pedal, which makes the throttle application more sensitive. If you move your foot so that it covers the entire pedal you can more slowly apply it and it seems like it helps some, but its uncomforatble and tires out your foot.

To me older cars were so much better at these little things. Like the GMT-800 trucks had accelerators with 2 degrees of freedom so that the flat part of the pedal would pivot on the end of the arm. If the Camaro had this it would give so much more throttle control in these situations, especially for a car with such a high dynamic range, meaning the car has so much power its harder to create the throttle mapping than say a car with half the power.

Additionally this car is so stiff as well it brings out all these issues worse than say a regular car. For example, a lot of the bushings on the axel and driveline and steering are stiffer to improve response and give a performance feel, but all this stuff makes these problems and NVH (noise, vibration, and harshness) so much worse.

11-08-2021, 10:58 PM	#11
cmitchell17 Drives: 17 2SS, 8L90, Cam, Heads, E85 Join Date: Dec 2016 Location: US Posts: 1,213	I am glad someone else notices this as well, my 2017 SS is the same way. I've tried smoothing the driver demand and all kinds of other stuff in HP Tuners, and I also have a Solar TB as well. The "problem" is still there. I put problem in quotes because I think this is just the sorry way GM programed the car to drive. There are times I swear the throttle position has moved, and I have even tried to catch it on a log doing it and I see now change in accelerator, throttle, or timing or anything. The absolute worst is trying to drive in a very slow stop and go traffic jam. Especially when you start from a dead stop and inching along below 10 mph in first gear and have to let off, then start going again. If I didn't have the years of driving experience in this car or someone else was driving, I am sure they would press the gas to go again and if the car was still in first you will get a huge jolt and whiplash. The 8L90 does have a pretty low first gear but I know there are better ways to program and compensate for these things for driveability. One thing I have found that maybe helps just a little bit, is where you have your foot on the accelerator pedal. It is easy and usually more comfortable to drive with your foot pressing the very bottom of the pedal, which makes the throttle application more sensitive. If you move your foot so that it covers the entire pedal you can more slowly apply it and it seems like it helps some, but its uncomforatble and tires out your foot. To me older cars were so much better at these little things. Like the GMT-800 trucks had accelerators with 2 degrees of freedom so that the flat part of the pedal would pivot on the end of the arm. If the Camaro had this it would give so much more throttle control in these situations, especially for a car with such a high dynamic range, meaning the car has so much power its harder to create the throttle mapping than say a car with half the power. Additionally this car is so stiff as well it brings out all these issues worse than say a regular car. For example, a lot of the bushings on the axel and driveline and steering are stiffer to improve response and give a performance feel, but all this stuff makes these problems and NVH (noise, vibration, and harshness) so much worse.