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Old 09-26-2017, 02:04 PM   #21 (permalink)
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Originally Posted by westygo View Post
I figured silicone was a good removable solution. What do you suggest?
Velcro would be more removeable, that's what I have holding my grille block on, that and a single screw.(which has saved the block from falling off... )

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Old 09-26-2017, 02:05 PM   #22 (permalink)
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Velcro is an idea, but I often find it's a battle between various adhesive strengths vs. the velcro itself.

I like stainless screws personally. You can put some backing material behind the grille and drill through that rather than through the grille itself (if preserving it is a priority).
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Old 09-26-2017, 02:58 PM   #23 (permalink)
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Tab and slot so the fastener only restrains movement and not separation.
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Old 09-27-2017, 02:14 AM   #24 (permalink)
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Thanks for the input. I will reconsider!
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Old 10-09-2017, 09:37 PM   #25 (permalink)
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Some more aero work today. Installed fog light pocket covers. Also did some more work on the front belly pan/splitter.

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Old 10-09-2017, 09:44 PM   #26 (permalink)
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The belly pan is mostly so I have somewhere to install deflectors for the front wheels. While pondering how to attach it I realized I could just extend the pan past the dam and make a splitter. This should lower the stagnation point, reduce lift and send more air over the top of the car....I think.


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Old 10-09-2017, 09:59 PM   #27 (permalink)
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Old 10-09-2017, 10:30 PM   #28 (permalink)
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A narrow splitter will stiffen the edge. Decide if you want that. Flexible or brittle?

Wider ones will produce downforce. Decide if you want that. Handling or economy?

Some airdams have a notch in the center to cause a jet of air down the center while shrouding the wheels. Gasoline Fumes has an extreme example.

edit: what I'm talking about:

How does this work??

Hey, it's in your thread.

Last edited by freebeard; 10-09-2017 at 10:36 PM..
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Old 10-10-2017, 03:50 PM   #29 (permalink)
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I am thinking that because the clearance is so high (7") I won't need to let more air through. This is 100% for FE, my thoughts on thebsplitter are that lowering the stagnation point will cause more air to flow over the car, and therefore less drag. Is this reasonable?
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Old 10-11-2017, 04:33 AM   #30 (permalink)
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Not unreasonable?

The volume of air may matter less than the proportion that flows freely vs being blocked by the wheels. The idea of the central jet seems to be that it delivers energized air to the diffuser at the rear.

Air that is parted to the sides self-cancels (on average). Air that goes over the top contributes to lift.

Here's an example from history — a feature that didn't make it from Buckminster Fuller's Omni-directional Trasport, to its ground-taxiing test form, the Dymaxion
car:



He called it an 'air keel'. It was a central jet on a tricycle that fed air to the empennage.

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