Spinner settings in mame

[Connorsdad]

My spinner controls cars like crap in racing games, I've tried many different settings but I can't seem to get it right. It seems way too sensitive, the cars seem to go all over the place. May be it's because I'm not using the wheel add on ?

What settings do you guys use ?

[DarthMarino]

It's going to be different for every day.  You tried lowering the Dial Sensitivity and the Dial Digital Speed?

[BadMouth]

First off, don't map Dial LEFT and Dial RIGHT.
That would have the same effect as the spinner being a button that is pressed as soon as it is turned left or right.
Only map Dial Analog X.

Second, the only adjustment under the analog menu in MAME that you need to worry about is SENSETIVITY.

The adjustments that contain the word DIGITAL are for when you are using buttons in place of an analog control.
Example: you are using buttons in place of the original analog pedals, but the car in Pole Position squeals the tires and loses time whenever you start out.
Lowering DIGITAL speed will reduce the speed at which the virtual analog control is depressed when you hit the button, instead of being instant-on.
Changing DIGITAL centering will alter the speed at which the virtual analog control returns to center when you release the button.

[BadMouth]

geecab also came up with a modification to the MAME source code that makes the 270 degree wheel games play nicer with 360 degree wheels.
http://forum.arcadecontrols.com/index.php/topic,130956.msg1341623.html#msg1341623

[Connorsdad]

Thanks BadMouth, I'll try those adjustments, as for building my own mame from source I'll leave that to the experts