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After cutting out the profile, I transferred the shape of the duct onto the hood with a Sharpie.
After much hacking, grinding, and some drilling, this is the resulting hole.
I used four button head bolts (more aerodynamic!) with nuts (with the nylon so they don’t vibrate loose) and washers to secure the duct to the hood.
FYI, the duct didn’t quite match the curvature of the hood in the fore-aft direction. I extrapolated the surface I modeled about two inches more than I measured. Guess what? The hood took a bit of a nose dive near the leading edge of the hood. It was nothing the nuts and bolts couldn’t fix.
Here is the duct all bolted down. Not too bad eh?
8 comments
No, I only made the one. If you decide to go this route, you should also stick a one-way check valve in the air hose going from the intake to the front breather on the valve cover. I was losing ram air boost through this flow path. I regained the lost boost after plugging it in later testing. A one-way valve is a more elegant solution.
https://motoiq.com/project-s2000-part-22-testing-new-goods-and-more-intake-mods/2/
No, I only made the one. If you decide to go this route, you should also stick a one-way check valve in the air hose going from the intake to the front breather on the valve cover. I was losing ram air boost through this flow path. I regained the lost boost after plugging it in later testing. A one-way valve is a more elegant solution.
https://motoiq.com/project-s2000-part-22-testing-new-goods-and-more-intake-mods/2/
No, I only made the one. If you decide to go this route, you should also stick a one-way check valve in the air hose going from the intake to the front breather on the valve cover. I was losing ram air boost through this flow path. I regained the lost boost after plugging it in later testing. A one-way valve is a more elegant solution.
https://motoiq.com/project-s2000-part-22-testing-new-goods-and-more-intake-mods/2/
No, I only made the one. If you decide to go this route, you should also stick a one-way check valve in the air hose going from the intake to the front breather on the valve cover. I was losing ram air boost through this flow path. I regained the lost boost after plugging it in later testing. A one-way valve is a more elegant solution.
https://motoiq.com/project-s2000-part-22-testing-new-goods-and-more-intake-mods/2/
No, I only made the one. If you decide to go this route, you should also stick a one-way check valve in the air hose going from the intake to the front breather on the valve cover. I was losing ram air boost through this flow path. I regained the lost boost after plugging it in later testing. A one-way valve is a more elegant solution.
https://motoiq.com/project-s2000-part-22-testing-new-goods-and-more-intake-mods/2/
No, I only made the one. If you decide to go this route, you should also stick a one-way check valve in the air hose going from the intake to the front breather on the valve cover. I was losing ram air boost through this flow path. I regained the lost boost after plugging it in later testing. A one-way valve is a more elegant solution.
https://motoiq.com/project-s2000-part-22-testing-new-goods-and-more-intake-mods/2/
No, I only made the one. If you decide to go this route, you should also stick a one-way check valve in the air hose going from the intake to the front breather on the valve cover. I was losing ram air boost through this flow path. I regained the lost boost after plugging it in later testing. A one-way valve is a more elegant solution.
https://motoiq.com/project-s2000-part-22-testing-new-goods-and-more-intake-mods/2/
I’d be interested if you made a cf naca duct!