Nine Lives Racing Wang mounting discussion

[Kulebrero]

Has anyone done this on a Gen 2 car?

I can’t figure out where it’d make most sense to install some support to keep the trunk from bending/flexing with a wang.

Would it make sense to replace the rubber supports on both side of the latch with hard bolts, and removing the plastic piece on the edge of the trunk so the bolts have a hard point to rest on?

[RedReplicant]

Originally Posted by GrandSport

Deck lids will flex. This is why chassis mount is best practice.

My small ARP wing has flexed my decklid to the point where it has cracked paint. Reinforcement is good.

This. I ran a 9LR on my S2000 when they first came out, after a season my trunk lid itself was cracked about 25% of the way around the top feet.

[NoHaveMSG]

Originally Posted by RedReplicant

This. I ran a 9LR on my S2000 when they first came out, after a season my trunk lid itself was cracked about 25% of the way around the top feet.

You can mitigate that with a backing plate on the inside to distribute load across a wider area, if you have room on the inside of the lid. It will probably still flex, but should help it from tearing. I am going to have to do that with the little APR universal mounts I bought.

[BatStig]

Originally Posted by RedReplicant

This. I ran a 9LR on my S2000 when they first came out, after a season my trunk lid itself was cracked about 25% of the way around the top feet.

Well, isn't that terrifying. Thank you for sharing!

[GrandSport]

Yeah, a lot of reinforcement is needed for deck-lid mounted wings. It's pretty easy to make a few hundred pounds of downforce at high speeds, and even more at "peak" (ie: strong head wind + high speed).

Most mounts have fair small footprints- maybe 8-10 square inches at most. You're talking hundreds of PSI there.

[GrandSport]

Originally Posted by Kulebrero

Has anyone done this on a Gen 2 car?

I can’t figure out where it’d make most sense to install some support to keep the trunk from bending/flexing with a wang.

Would it make sense to replace the rubber supports on both side of the latch with hard bolts, and removing the plastic piece on the edge of the trunk so the bolts have a hard point to rest on?

I'd be more concerned about reinforcing the actual lid itself. Localized pressure is going to be rough on thin sheetmetal. You could probably bond some sheetmetal to it. Again, not idea, but it would help with localized loads a ton. Remember, rigidity increases cubically (power of 3) with thickness.

Rubber mounts are fine, IMO. If anything, they can flex a bit and that's a good thing. Maybe just make them bigger or more of them. The Viper ACR, which has a MASSIVE "double decker" wing that is deck mounted, runs rubber mounts. They just have a bigger landing pad than the non-acr versions. I think they also basically bond a second layer of carbon to the deck lid. A little different, as it's a pure carbon body panel, but same concept.

[NoHaveMSG]

Originally Posted by GrandSport

Most mounts have fair small footprints- maybe 8-10 square inches at most. You're talking hundreds of PSI there.

I actually really like the wing mounts on my GTC200 and have been thinking about reusing them with my new wing. They have a very large footprint.

[GrandSport]

Yeah, those are monsters. Not very aesthetically pleasing, but great for load distribution.

[villainous_frx]

At the track yesterday I noticed that the rear mounts were pushing down away from the bolts. These were tightened down to the point of bending the the trunk a bit with a backing washer. On the top I am using backing washers, but I'm highly considering building some plates similar to the ARP ones above.