EM1 CF boot, reinforcement to allow for a rear wing, Any ideas? PICS ARE UP.

[DNYALL]

All i can really think of is to cut out some of the softer boot material away so that i can get to the under side, flat surface of the carbon. Then mount on the underside, two rectangular tubes of 3mm or so Alloy (already found them at bunnings) I'm thinking the square tubes because i don't think they will flex barely at all, and will sit up hard against the boots surface.
Mounted with a bolt on the outer sides, as well as the four bolts where the brackets for the wing are. Therefor when the downforce from the wing puts pressure down onto the boot it will spread the weight load across the whole surface of the boot and not just the centre.

Anyone else got any ideas? or suggestions?

[hoey888]

mike, i know this is probably gonna be an overkill/extreme for you, but what about something like this ? they've welded a bracket directly to chassis to there wont be any flex due to downforce.

http://www.afterhoursautomotive.com/images/spec%20v/rear-wing.jpg
http://www.afterhoursautomotive.com/images/spec%20v/wing-bracket.jpg

[mrwillz]

over kill on a em1
thats massive lol

[xntrik]

But that car's got the right idea.

You're better off getting custom brackets made to suit the OEM holes / on the side, as the side of the boot should be re-inforced.
Im not too sure in regards to carbon fibre boot; never owned one.

[DNYALL]

ok My dad and I have been tinkering around with re-inforcement options with the boot. should be all finished tomorrow night. will post up pics when its done and get some opinions. Obviously the best and most effective way would be to install it like the picture posted above, but being my daily drive still, I can't really justify all that bar work.

[xntrik]

Do you have a boot brace?
Easy.

[DNYALL]

boot brace? wat do u mean? well anyway, it is installed. used a couple of alloy angle pieces on the top of the boot to displace the weight a bit and also a few bars to re-inforce the underside of the boot. To be honest i thought it was just gonna crack the CF on the first outing but I did a test run the other day ( up to the same speeds i reach at winton anyway, secret test location ;) ) and it seems to of held up no problems, no cracks and the boot seems to be taking the downforce. I just have to rig up some straps to hold the boot hard down on its rubbers, so that the downforce generated from the wing isn't wasted in the rubbers.

I am thinking that if the boot is already hard down on the rubbers then the downforce will then be transferred more directly to the body. Thats my way of thinking anyway. I am no expert and i know that this way of mounting it isn't 100% effective, i'm still hoping that it will give some downforce to the back to hold it a bit more steady coming into braking sections as well as the faster high speed corners. Especially the sweeper at Winton which is where i seem to come unstuck the most :/ haha

I Am gonna go up to the hills this arvo and take some photos while its still on. Don't think i will run it on the street, even though i kinda like how it looks atm :thumbsup: I know most will hate it...

[beeza]

So,what's new?!

Waiting patiently :)

[IEVAQ8]

yeh, hurry up with the pics already...lol

[beeza]

Yeah,someone is getting creative on Ozhonda - WOW!!

[BIGTYM]

Looking forward to seeing photos of the wing installed on your car. I've always been a closet fan of wings it's a shame the Fast n Furious revultion kinda ruined it for me.

[DNYALL]

ok here are some pics. Took it for a spin up Mt Donna Buang. Enjoy :)

Nothing to fancy, but so far the boot hasn't shown any signs of cracking or damage, so it seems to have worked. I think i might have to adjust it a little to give a bit more angle though. I gotta have a play with it at the track and see if it makes any real difference. But overall i'm happy :thumbsup:

Here u can see the alloy bar on the underside of the boot. it is there to give support for when the wing sort of pulls up on the mounts, because the wing will push back on the rear mounts so it will try to lift on the front mounts. this bar is there to displace the weight: (at least thats my theory)
http://img249.imageshack.us/img249/6093/p5090167.jpg (http://img249.imageshack.us/i/p5090167.jpg/)

I cut up some more bar to fill in the gaps so that it is hard up against the underside of the boot:
http://img8.imageshack.us/img8/7959/p5090168.jpg (http://img8.imageshack.us/i/p5090168.jpg/)

The angle pieces on the top are there to again, displace the weight load a bit and also the angle shouldn't be able to bend, also the rear mounts which is where the downward pressure will be applied, I figure, it is close to the back so then the back downward section should be able to take the pressure.
http://img709.imageshack.us/img709/1640/p5090172.jpg (http://img709.imageshack.us/i/p5090172.jpg/)

Rear vision shot haha:
http://img35.imageshack.us/img35/9513/p5090165.jpg (http://img35.imageshack.us/i/p5090165.jpg/)

http://img63.imageshack.us/img63/794/p5090138.jpg (http://img63.imageshack.us/i/p5090138.jpg/)

http://img534.imageshack.us/img534/4535/p5090124.jpg

[xntrik]

Why not make up a bar that extends from that bar you already have to your actual boot frame, with rubber bushings at the bottom to stop the boot from collapsing?

[DNYALL]

yep, know wat you mean. That would prob be a good idea. Although, at the moment it seems to be holding well. I have already given it a test run at a slightly faster speed Than I hit at winton, so i think it will be ok.

[xntrik]

Okay!
Looks practical, so all good.

[beeza]

Mike,that looks great!!

Ya wont get it lookin' any better!

WELL DONE MATE!!

[Benson]

Ebay wing FTW,

You might want to reduce some wing angle. I dont think you need that much angle in the rear

[beeza]

Great tip!

Makes me want one for the twistys out home,keep the back end on the sedan planted!

I see ya got the heavy ass tyre still in there,I got one of those 'tyre weld' cans,to get me out of trouble in the rare event of a punchure.

[DNYALL]

Thanks Beeza :) It is still on my car, I love it haha even though i reckon most people would be looking at me on the road with disgust. I don't care ;)


Ebay wing FTW,

You might want to reduce some wing angle. I dont think you need that much angle in the rear

Yeah, thanks for the link mate :thumbsup: Wing is pretty decent quality for an ebay special haha

And with the angle, the centre part of the wing is literally only just on a downward angle. i measured it, and at the moment, the flat in the middle section only has about 8mm of fall from the back of the flat section to the front (if that makes sense) I was actually thinking of increasing the angle a bit. The outside parts of the wing have much more angle, but that is just the design of it.

Next time i'm at the track, i will try a few different angles and see how i go.