Quote:
Originally Posted by asshanson
I found a guy to make the diffuser for me. He owns the company that makes all the Lotus diffusers, I was happy with the quality. He said if I volunteer for the M12/M400 prototype, I can have it for the cost of shipping, and then get a group buy started them for them.
I'm going to see if any local shops are interested in cutting out a front splitter for me, and then I'll probably install with some 1/4 turn fasteners like the clams. Vortex generators are cheap so I'll probably get those done soon too. But the mirrors and APR wing are both pretty expensive, so they might have to wait until winter. I may just use the stock wing and get aftermarket risers that position the wing about 2" higher and a little back. That way it actually gets into the airflow stream, stock position doesn't do much for downforce.
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Sounds like you drove well! I'm excited to see this driven in anger in August.
It sounds like you're generally aware this already but I'll still mention something to consider when thinking about rear wings. The 3D airfoil you show in your most recent picture (it has the "bump up" in the middle) is most effective when placed below the rear roofline, while the 2D airfoil you currently have on the car (flat all the way across) is more effective in clean air, above the rear roofline (like you allude to when mentioning raising it 2").
From your pictures, it kind of looks like your wing is below the rear roofline so I'd say raise it to make sure it's above the roofline in clean air (like you mentioned already), or consider a 3D airfoil at about the current height.
All that said, I'm sure there's plenty of knowledge and proven setups in the Noble community already which you can just plug and play, but the definite no-no is placing a 3D airfoil too high.
This article goes into the details of 2D and 3D airfoils:
http://aprperformance.com/index.php?...=176&Itemid=44