Airspeed indicator

[LAWise]

I have my Teenie Two homebuilt ready to fly and I was doing some high speed taxing and discovered that my airspeed indicator was reading 15 - 20 mph faster than my GPS was showing under no wind conditions. How do I determine what the problem is with my airspeed indicator?

[FlyingRon]

Answered over in your other thread: http://eaaforums.org/showthread.php?5424-Airspeed-indicator

[martymayes]

How do I determine what the problem is with my airspeed indicator?

There may not be a problem with it. ASI and GPS are measuring two different things, likely they will never be in complete agreement. Just fly it and observe for a while.