Rear wing and boot flex tip

Todd77 · Postby **Todd77** » Thu May 11, 2017 7:06 pm

Hi all, thought I would share a trick that I do to my cars to stop boot flex on NA and NBs, I've done this to mine and brothers cars and I could feel the difference straight away.

If you run a wing push down on it and you will see that it flexes, causing the wing to flatten out, thus loosing downforce. This is caused by the glue that they stick the skin to the frame has come away from one or the other.

How I fix this is I cut 2 pieces of 4mm thick ally composite panel ( u can use 4mm steel flat bar or something strong that thickness) 100x30mm , push these in either side near the rear mount bolts of wing, between skin and frame. Wear gloves or push it in with something, when it suddenly slips past old glue your fingers hit sharp edge of tin hard and can cut... ask me how I know :wink:

now when in there seal over it and in the rest of the gap with sikaflex. Shut boot and feel the difference. Hope it helps you out.

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Magpie · Postby **Magpie** » Thu May 11, 2017 7:39 pm

Middle of the boot would give you some flex. Another issue is fatigue in the metal where it mounts over time 'play' can develop

What wing are you running?

Todd77 · Postby **Todd77** » Thu May 11, 2017 7:52 pm

Magpie wrote:Middle of the boot would give you some flex. Another issue is fatigue in the metal where it mounts over time 'play' can develop

What wing are you running?

Mine has bugger all flex after I did it because your supporting under rear mounts. As for wing it's a twin blade thing I was given, unknown what type.

Magpie · Postby **Magpie** » Thu May 11, 2017 8:16 pm

I just fixed mine as well, however mine mounts on the edge of the boot and generates about 140kg of downforce at 200kmh.

Testing the 'fix' on Sunday.

Previous movement

Todd77 · Postby **Todd77** » Thu May 11, 2017 8:34 pm

Todd77 wrote:
Magpie wrote:Middle of the boot would give you some flex. Another issue is fatigue in the metal where it mounts over time 'play' can develop

What wing are you running?

Mine has bugger all flex after I did it because your supporting under rear mounts. As for wing it's a twin blade thing I was given, unknown what type.

Very nice, mine mounts to the boot and give some kg's downforce

Todd77 · Postby **Todd77** » Thu May 11, 2017 8:50 pm

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lightyear · Postby **lightyear** » Fri May 12, 2017 10:16 am

Another idea is to not mount a wing to the boot. Instead mount it to the body.

Magpie · Postby **Magpie** » Fri May 12, 2017 10:45 am

^^^^^^
That is what I'm in the process of looking at now. Just need to decide on a wing so that mounting points can be taken into account.

Another solution is a swan neck mount straight to the body.

madjak · Postby **madjak** » Fri May 12, 2017 12:18 pm

My wing is mounted to 3 nutserts each side that are fixed into the rain rail channel on the boot sides. The wing supports are 4mm thick aluminium. I think it flexes a little side to side but I tend not to look backwards when I'm driving fast.