That is a point that I was going to bring up that doesn't appear in
that nice article. The piston spring rate can change needle position to
allow the spring to rise at different rates allowing for very different
fuel mixtures at different "stations"
Now, if we could only know where the piston is during different times...
Perhaps a device that measures and records piston movement and
correlates it to the testing computer...
On Jun 24, 2004, at 8:59 AM, Dave & Marlene wrote:
> I think people make assumptions that the piston is closed at idle,
> half way open at some assumed midrange, & fully open at full throttle
> - high rpm. Not likely in most cases. We need the equivalent of a
> throttle position sensor to determine piston position.
> What's the answer?