I'm making a transponder mount, but how big dose the hole need to be?

[malici]

I'm talking about the hole fore the transponder.

[prime]

Number 2 pencil width.

[Railman]

I think it's closer to 5/16". This may be a little small, but if it is you can easily ream out a little with a hobby knife when you get to the track. It's better to be a little snug so it doesn't flop around.
Hope this helps.
;)

[ 05-19-2001: Message edited by: Railman ]

[Obi112]

Now that I look at a ruler, I think your right. When I called my local hobby shop and asked them how big it had to be, I think they said 3/8"...

[gubbs3]

I think maybe a 1/4 inch. That's what the size transponders are for the AMB system and the Autoscore system is just a hair smaller. Just borrow a ream for someone and drill a large enough hole to get it in.

[ 05-19-2001: Message edited by: gubbs3 ]

[Obi112]

1/2"

[Obi112]

Just got off my lazy butt and measured the darn windshield hole: it's 5/16", but I remember that it was a tight fit. If drill a 6/16" (3/8"), you should have nice fit.

[Railman]

I would still recomend drilling it small & ream it out to keep it a tight fit. Your car/truck will handle better if the transponder doesn't flop around.

[Nairb]

I'm with Railman here (again...). :)

[bryceanator]

what a transponder is it one of those thing that keep track of your laps and tell the people your time?

[Car_Head12]

uhh, yeah