I was toying with the idea of custom making a spoiler but really have no idea how to go about that. I barely have gotten into the world of fibreglass and was thinking that may be a good method to go but I'm thinking it wouldn't be strong enough to withstand high speeds. Does anyone have any tips on this or know of a link to a guide ? I haven't been able to find anything thus far. Thanks guys.

 

It depends really. Which of these types of spoilers are you wanting to build?

Metal/Steel


Fiberglass low pro spoiler


Fiberglass high "supra" style


Lip Spoiler


Fiberglass Combat Style Spoiler


OEM/Stock style spoiler

 

I was shooting for something like the WRC accent. I guess between the supra or combat style. something that would be reasonably high, probably about midway between the trunk and the roof.

 

I remember seeing a while back, someone was making one and started with carveable foam. Shaped, sanded, and glassed over it. Not sure if thats the proper technique, but it worked.

 

bdiggy...thats what I was going to recommend. It'll still be light enough to work with as far as fiberglass goes and if you screw up....parts are extra cheap to start over with. *lol*

The spoiler wont blow away at high speeds as long as you build a good base and lock it down good enough onto the car. If the fiberglassing is top notch and well done, you wont have to worry about cracking either. smile.gif

 

Call me crazy but I would just buy this:
[ebay]350167525416[/ebay]

It seems to fit the description of what you want. Of course if you're set on building your own have at it. I know it's not something I would want to do though. Maybe buy the spoiler and work on a set of WRC fender flares. wink.gif

 

I just came accross by chance searching for something completely different.

http://www.spoilershop.com.au/front/wings/..._body_kits.html

 

Those look like the Talon spoilers (that and the 03+ wing on that site)

They're not bad at all, but it might be tough to find them and shipping might be really, really expensive if they're all coming out of Australia.

 

I actually started working on one last summer. I'll try to finish it this coming spring. I used pink foam insulation from Home Depot. Started with 2". I researched designs I liked and based a design close to but my own style. Heres a pic of what I had done so far.



Its not going to be that high. I was getting an idea to roll the footings over the lid edge.








You have to take a lot of measurements. I also recommend getting a contour gauge, you can find them at hardware stores. Normally used to copy the angles of trim molding in carpentry. cost is $8.00 +/-.

I originally was going to make a rear air wing off the top of the window,


but decided to make a rear window lip visor. No pics of that yet.

But also recently, I had found a spoiler on a 03 Nissan Maxima at a wrecking yard that I was able to buy for $12.50 with 3rd brake light. I'll probably be modifying it to suit my purpose, but I'll also finish the other one too.

When using this foam, and going to glass. Use Epoxy resin, not the polyester. The poly will eat the foam thus needing to use spray glue and tin foiling your work. the epoxy resin will not eat the foam. A little more spendy but also a hardy material when cured. so if you're worried about cracking, epoxy will be strong enough.


Hope this helps. I used a course grit and a fine grit sanding blocks. And a long utility knife. I drew my lines similar to those on my scoop i'm making aswell to show you what I'm talking about. Draw your lines to get the profile you are looking for then whittle down to those dimensions.

To get the shape you are looking to make do this....


So just apply this to making the spoiler.

 

^^ I'm really good with electronics. I have not the slightest idea about how to start a project like that. Could you break down the use of the contour gauge, as well as how you got the lines onto that piece of foam?