Quote:
Originally Posted by vacationtime247
in this pic, what should the angle be from the roof line to the end of the kammback? Is this something that only tuff testing will determine? Will the added area cause a noticable push with crosswinds? What % increase in general will this add?
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15º is usually considered "safe". But it depends on lots of factors. Vekke did an adjustable one on his diesel VW Lupo and tuft testing revealed he could go lower than his first attempt. I only see a profile shot of your Kammback. Are you going to taper the sides in as well? Are the corners between the sides and top gently rounded? How smooth is the transition from roof to Kammback?