EVO Aerodynamics Review
I like the idea of a dynamic wing helping on braking zone. The R.Dynamic is on my list. But why do you think the split wing is dumb? I haven't given much thought to it but seems a pretty slick idea - although the gains on track time are small for the cost. The monopiece dynamic wing takes 1sec off a lap and for the double amount of money you get a split wing and only a couple 0,01sec less.
with a stock truck tho it's never going to pull the trunk off!
GTA, This is a kognition wing mount that used to help make it rigid. I used a bolt with a washer welded too it so the trunk rest on it when closed. The bar then is welded under the lip and too the floor so the lip doesn't flex. Basically it turns the trunk mount into a chassie mount once closed. 
Go to a hardware store and get a coupling nut + various lengths of bolts and a jam nut. Thread the coupling nut onto the thread from the wing mount and voila, play with it until it is snug against the trunk frame.
awesome I picture it now. I will try that and post up pics.
I like the idea of a dynamic wing helping on braking zone. The R.Dynamic is on my list. But why do you think the split wing is dumb? I haven't given much thought to it but seems a pretty slick idea - although the gains on track time are small for the cost. The monopiece dynamic wing takes 1sec off a lap and for the double amount of money you get a split wing and only a couple 0,01sec less.
Dan
So your wing splits to cause drag on one side of the vehicle to promote rotation, but also reduces downforce, which reduces grip that can be utilized for the turn. Because of how the forces translate through the uprights, there can be extremely little drag force converted into rotational movement, but a hell of a lot of downforce that was being utilized for cornering can be lost.
Dan
Dan
Even if it looks nice on paper, the cost is steep for a couple of 1/100s. I'd take a solid dynamic wing any time of the day.
I think the point is the downforce on the inner side, not the less drag on the outer side. The downforce bias is made to compensate for the weight shift during corners.
Even if it looks nice on paper, the cost is steep for a couple of 1/100s. I'd take a solid dynamic wing any time of the day.
Even if it looks nice on paper, the cost is steep for a couple of 1/100s. I'd take a solid dynamic wing any time of the day.
Dan
What are you guys doing about the drag force loads? The downforce would push down on the trunk lid, and the reinforcements under the lip and large pads for load distribution on the trunk lid address that. The drag on the wing would create a moment on the attachment point, pulling up on the front of the mount. This would not be helped by the distribution pad, unless there was one on the inside of the lid, too.
EDIT: The distribution pad might help a little, buy increasing distance from the rear most contact of the mount to the forward most fastener.... but not sure if that is enough.
EDIT: The distribution pad might help a little, buy increasing distance from the rear most contact of the mount to the forward most fastener.... but not sure if that is enough.
We recommend using a hood pin type fastener in the front area of the trunk mount. Fairly typical practice in World Challenge.
Rick
I saw a Miata with a turnbuckle and steel cable attached to the front of the trunk once. Not particularly what I was going for but that would support from the drag forces as well.
Of course a brace down to the frame supporting the area under the wing, would be strongest, but may not be needed on metal trunk lids.
We'll probably incorporate the hood-pin hole into our next Evo trunk mount bracket, which still would use the stock wing mounting holes.
Rick
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