CompOrangeSN95's Project SN9500 Build Thread

Revised because of broken links

I've been gone for a long time, and I'm not honestly sure why. BUT, I have a new project and I thought you guys might enjoy it. It's a long, slow, build... but I'm not cutting corners or skimping this time around. So here it is: Project SN9500. The goal is to make a street legal time trial/hillclimb car.

So,
I scooped up an IRS from an 03 cobra off craigslist for about $700. Stripped it, painted the subframe, and reassembled with FTBR delrin bushings and solid diff mount. Replaced the stock control arms with Kenny Brown upper and lowers and machined a custom set of toe-links from 2024-t351 aluminum. Rebuilt and painted some Wilwood calipers I had bought at carlisle a few years ago and designed a custom mount so I could run a separate e-brake caliper. Added an Eibach sway bar, and FTBR end links.



Fancy bits in the front:



All of the links in this thread have been broken since Photobucket did it's thing. I will not be going through the thread to fix these links, but am happy to re-post any picture upon request.

 

Thanks guys!

It's a pretty long list, but to be general: Full NASA/SCCA spec cage, SLA front, either a 4.6 or 5.4, and full underbody aero. The v6 will be for sale soon after I dive into the engine bay. It runs like a champ, but I have no use for it. I actually finished the design for the diffuser last night but need to get the fuel cell and IRS in the car before I can start mocking it up.

 

Thanks everyone

My original reason was to make a lighter set than what was already on the market. But they still weight about 1.5lbs each, which I think is about the weight of the FTBR ones. I haven't been able to confirm the weight of FTBR's toe-links yet, so that's more of an assumption.

 

Diffuser design and thought process for anyone that's interested.

I used a naca STOL aerofoil for the basic geometry. They have a maximum attack angle of about 17° so I inverted the shape, set the centerline at 15° and made the leading edge tangent to the belly pan. I also added the equivalent (or something similar) of a leading edge slat to help with laminar flow. The 2 flaps on either side are spring loaded and designed to drop down in case the rear suspension ever fully unloads causing the control arms to hit. 22 gallon fuel cell for scale. I think it looks pretty neat.

 

Thanks man. Nice to see some familiar faces/cars.

 

Thanks! Looking forward to actually getting it into the car haha

 

Thanks! It'll be awhile before I can actually fab it up.