I had to drive a friend in from the airport with the van and its big hole in the roof (the luggage rack was on). Boy is the "sunroof " nice. No buffeting, not as noisy as you would imagine. We mapped out where the air was ducking in, and it seemed to curl in around 2/3 of the way back of the front edge of the hole. I'm guessing the luggage rack would have affected that flow.

BTW the friend I was driving with is my partner in crime of making water tunnels/flumes. So between both of us we can come up with a butt-load of sketchy fluid dynamic answers to many questions :)

alistair

 
On 2011-07-25, at 1:06 PM, craig cowan wrote:

> yes, those sunroof ones rock!
> : )
> 
> -Craig
> '85 SUNROOF GL turned westy
> '87 SUNROOF Syncro
> 
> 
> On Sat, Jul 23, 2011 at 6:14 PM, Alistair Bell <albell@shaw.ca> wrote:
> 
>> Finally, after lots of procrastination, I've cut the pop top hole in my
>> syncro tin top. It sure lets in a lot of light, those sunroof vanagons must
>> be great.
>> 
>> I hope to get the pop top on the van tomorrow, then do the edge trimming
>> etc.
>> 
>> I'll post pics of the hole on my blog ( http://shufti.wordpress.com/)
>> later this evening.
>> alistair
>>