Venting the Targa Top Options

[john rogers]

Has anyone tried using a spacer under the rear of the Targa top, say about an inch or two to make a vent? Since my top has to be and is bolted down in the rear I thought this might help break the vacuum that forms behind the rear window? I have seen a couple with plexiglass/lexan rear windows with several holes across the width which would do the same thing I think?

[brant]

I saw a device on "This old house" you might be interested in. It's made to drill holes in wood at a 45' angle, so you can use screws to do butt corner joints. I don't remember what it's called, but it gives you a constant repeatable angled hole. Drill the hell out of your roof. It will still give you shade. And with the holes angled toward the back of the car, the air flow over the top of the roof will draw air from the cockpit. I have no idea how much unwanted upforce it would generate. Just a thought.

I wonder how much turbulence that would create...

but most of the vintage orgs, wouldn't allow it anyways as the Look of the car and all exterior panels has to remain fairly stock...

In colorado they are so anal about the Look of the car that they only allow so many square inches of stickers on the surface of the car. (basically they argue that in 196x... there was no advertising)

brant