Heat management is still an issue on track days, so I decided to add a Trackspec hood vent.
- Optimized louver design to maximize extraction flow velocities within a vehicle in motion
- Reduces under hood pressure delta to reduce front end lift and increase net vehicle downforce.
- Significantly reduces under hood temperatures by extracting heat and allowing fresh cold air to enter the engine bay.
- Maximize life of engine accessories by reducing overall operating temperature.
- Increases dense, cold air flow through radiator to promote lower coolant temperatures.
-exactly what my C5Z needs!
I managed to source a used T1 hood vent in good condition. For the install, I decided to use countersunk hex screws rather than pop rivets, as I don't like the look of pop rivets (it is not a kit car, after all).
To countersunk a screw, you need enough material thickness for the screw head. I looked up some tables and concluded that M3 (3 mm) screws would work. An Ø6.3 mm 90 deg countersink tool is needed for a M3 countersunk screw head.
To cut the hood, I used a multi cutter tool with a circular saw blade. This cut through the hood like butter, was easily controllable and produced much less dust than an angle grinder.
Final result. Quite satisfied of the result using M3 countersunk screws.
I've only been on a quick drive after installing the vent. The main objective with the hood vent was to increase the efficiency of the radiator and oil cooler. Even at the modest speed of ~55 mph, I noticed an additional bonus - reduced front end lift. The front end felt more planted and the steering was heavier. I didn't expect that.
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