Thread: Brake ducts
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Old 03-03-2013, 09:30 PM   #26
1977and2010
Tampa Gulf Coast Family
 
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Drives: 1977 Z28, 2SSRS 2010 M6
Join Date: Sep 2009
Location: Dunedin FL
Posts: 795
Here's some pics from my ducts. I used the idea from JohnM. It came out well. He posted pics on here and I just used those. the only thing was the pics still left a lot for me to figure out. like there is two little plastic pieces that I had to cut in the front air dam to run the hoses through. The NACA ducts come pretty big and have to be cut or sanded down a lot to fit against the lower grill. The lower grill does come out with some persuasion without taking the front bumper off. The NACA ducts are zip tied to the lower grill and held strong last December at Daytona even hitting a top speed of 158 mph. Routing the ducting was the easy part. The backing plates pop off with 3 bolts, drill a 2" inch hole where the air can get to the inner rotor vanes and weld that sucker on. Also the NACA duct comes in 3" and you need a reducer that doesnt have the greatest fit so I epoxied that after sticking a couple screw in for good measure. They really can't even be seen unless they are pointed out.
Part #s
2 SPA-D103B 3"- 2 1/2" NACA duct adapter $13.99 ea
1 THE-SS200 2" silicone ducting 11' section $52.99
2 SPA-D100 single small bumper, black NACA duct $15.99 ea
2 2" O.D. exhaust tube, 4 worm clamps, zip ties

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