1974 Duster Duck Wing...
I'm so glad I didn't buy this Duster Duck Wing off eBay last week. After saving the pictures of the duck wing on my computer and taking a closer look. This wing is " Hand Laid Fiberglass", has waves, and is hollow. Does not look like good quality for the price $180 plus shipping! Has anyone here had any luck with it? Gonna order the Go Wing instead. Thanks...
Alec
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They’re ALL hollow, it’s how they were made.
This is actually the best version currently being made. The original Direct Connection spoilers were just thin ABS, they were supposed to be installed with plastic push rivets.
I have one of these, as well as an original DC spoiler and one made by MAS fiberglass. The one made by MAS is probably the best, I prefer that one even to the originals but MAS is out of business and that version is harder to find than the originals.
The showcars version you linked is pretty good. It would take a little bit of bodywork if you wanted it to look super clean, but again, the originals don’t have perfect bodywork as they can have waves and warps being thin ABS. The only “issue” with the showcars reproduction is he ended the mold a little early on the ends, so the short edges are more vertical than the originals which results in the showcars spoiler leaving a smidge more trunk lid showing on the ends. It’s a small amount and would be easy to fix with a little fiberglass to finish the tapered edge.
All fiberglass parts take a little bodywork. But the DC spoilers are getting hard to find, and usually they’re cracked in the mounting pockets because they get mounted with screws and over tightened.
As for down force, I’d bet on the DC spoiler over the gull wing. A spoiler doesn’t have to be 50 lbs to work, it’s just about redirecting air flow. At the tail of the car a small change in flow can make a big difference in down force. I read somewhere that DC did some informal testing at a road course comparing a car without a spoiler to one with the DC spoiler and the result was a higher straightaway speed with the spoiler. But I can’t find the source for that and it didn’t really include any “data” so it’s a crap shoot. Based on the body lines of the car in general a ducktail style spoiler should be effective, but the devils in the details.
