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I MUST BUMP THIS THREAD:
This update is in anger. I spent some seat time in an ZZT230 Celica today. My work car is DBW, and my BRZ is DBW. Driving the Celica today was a huge reminder about the feeling I'm talking about.
The 'torque dip' really isn't the major problem. It's the fucking throttle input filtering.
I'm desperate to drive an FA20 car with a completely aftermarket ECU with a map made from scratch. I can't fucking stand the throttle plate doing things that I'm not telling it to.
In moments of oversteer in the celica today, I was able to subtly control throttle inputs there was no delay or negotiation of the wheel speed I needed at the moment. Immediately after I drove the BRZ in the same course to only have it constantly arguing with my inputs, and the delays themselves changed depending on some mystery maps and circumstances.
I really don't have the ability to know what others have done, but I'm so done with the FA20. I can't think of another N/A 2L I've driven that feels this disconnected from throttle control. The dip, and filtering teamwork to create random wheel speed control unless you hold it on the floor and hope. From 1%-99% you have no idea what the throttle plate is doing, and even sometimes when you hold or maintain a position the plate may change resulting in destruction on the art of throttle control. I need to find a solution that doesn't require me buying a new ECU and spending hours and hours trying to tell a dyno technician what I mean by throttle linearity, as I've not met one of those guys yet that gets it.
--End rant.
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