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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > Canada > Canada Classifieds Section > Function Rear Diffuser by Andy M



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      03-14-2012, 07:23 PM   #67
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Would love to see a cosmetic version of this for the E90 328 LCI! Always wanted to see what the E90 would look like with a proper diffuser
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      03-15-2012, 02:12 PM   #68
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i think this is great. subscribed.
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      03-15-2012, 03:02 PM   #69
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Should provide a bit of an update...

It's going to be all cf now with aluminum as a stiffener. This is something where the weight and strength of CF is required. There are two points on the rear bumper that is directly attached to the frame. I'm spanning that with an aluminum frame and then the CF is attached to that.

Going to start small on this and work my way out. So right now it's just a piece that will hang under the bumper (or m-tech diffuser) and in the future, it'll probably extend out.

The 3D models have been done up, needed to make some changes and the drawings have been sent to the factory for manufacturing already. Will post up some renders tonight. Hoping the finished product will arrive in the next few weeks and then I'll post up the pricing for it.
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      03-15-2012, 06:58 PM   #70
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Quote:
Originally Posted by Andy M View Post
Should provide a bit of an update...

It's going to be all cf now with aluminum as a stiffener. This is something where the weight and strength of CF is required. There are two points on the rear bumper that is directly attached to the frame. I'm spanning that with an aluminum frame and then the CF is attached to that.

Going to start small on this and work my way out. So right now it's just a piece that will hang under the bumper (or m-tech diffuser) and in the future, it'll probably extend out.

The 3D models have been done up, needed to make some changes and the drawings have been sent to the factory for manufacturing already. Will post up some renders tonight. Hoping the finished product will arrive in the next few weeks and then I'll post up the pricing for it.
Can't wait to see this in person!
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      03-15-2012, 10:56 PM   #71
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The M-tech version is attached. The non-Mtech version is the exact same but the fins don't stick up (they're just straight up and terminate at the bottom of the rear bumper). The M-tech one will work by being seamless with the actual diffuser.

Trying my best to bring down the cost too. The CF fins are pricey to make, even if it's made in China. Looking into whether I can make the CF parts thinner. My parts are quite a bit thicker and sturdier than what's out there for CF parts (i.e. CF diffusers). The thing with those parts is they're so thin I can shine a flashlight through it and see through the other side. With the CF parts I'm using, you can't do that... (using structural CF so it might be overkill...almost everyone else is using really thin CF pieces).
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      04-15-2012, 01:12 AM   #72
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Any updates on this Andy?
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      04-15-2012, 04:45 PM   #73
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Yeah, the CNC machine at the factory broke down last week while I was on vacation. Should be up this week though so hopefully I'll update you as soon as the final prototypes are on their way here.
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      04-29-2012, 09:08 PM   #74
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Quote:
Originally Posted by Andy M View Post
Yeah, the CNC machine at the factory broke down last week while I was on vacation. Should be up this week though so hopefully I'll update you as soon as the final prototypes are on their way here.
update?
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      04-30-2012, 06:47 PM   #75
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Quote:
Originally Posted by itrocks4u View Post
update?
Shipping and on its way now.
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      04-30-2012, 08:49 PM   #76
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Quote:
Originally Posted by Andy M
Quote:
Originally Posted by itrocks4u View Post
update?
Shipping and on its way now.
Shipping from where??
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      04-30-2012, 11:08 PM   #77
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Quote:
Originally Posted by itrocks4u View Post
Shipping from where??
Sorry I meant shipping from the factory (in China) to Toronto, Canada. This SHOULD be the production prototype if all goes well...*keeping fingers crossed*
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      05-01-2012, 12:43 AM   #78
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Quote:
Originally Posted by Andy M
Quote:
Originally Posted by itrocks4u View Post
Shipping from where??
Sorry I meant shipping from the factory (in China) to Toronto, Canada. This SHOULD be the production prototype if all goes well...*keeping fingers crossed*
Best of luck buddy.
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      05-12-2012, 12:30 AM   #79
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Anything new? Looking forward to this.
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      05-12-2012, 12:41 AM   #80
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wow pretty interested in how this will turnout.
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      05-14-2012, 11:35 AM   #81
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They were missing a part so they had to fabricate it and they sending it over via express once they have it done. I'll be contacting them to find out what's the status.
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      06-03-2012, 06:52 PM   #82
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So, for those who went to the GTA meet in Markham today, I brought a little surprise.

http://www.e90post.com/forums/attach...1&d=1338764204

It won't be as functional as I hoped it would be since I wasn't able to span the entire underbody so I'm going to have to consider it a "cosmetic" mod. I'm sure it has some function since it does actually channel the air.

I'm planning on making a full CF version for those of you (like me) who have the full CF M-Tech diffuser. I'm thinking of deleting the little CF trim that I have there since it's not very noticeable and not worth the cost to buy. It DOES however extend back to create that channel effect but I have a feeling most people are buying it for cosmetics (so may not be worth it).

I'll update this thread when more info is available. Still debating whether to drop the CF part or not (and invest that amount into making full CF fins). Thanks pepep for the above photo. More photos to come!

Last edited by Andy M; 06-03-2012 at 08:57 PM.
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      06-03-2012, 07:59 PM   #83
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Love the look your going for but at the moment that piece looks uneven and the fins aren't straight. It does not look right at the moment. I hope you informed your source who made it for you and is making a better quality version. Like I said I love the look your going for and would love one myself but needs to be made alot better. Keep us updated.
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      06-03-2012, 08:49 PM   #84
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Quote:
Originally Posted by project335i View Post
Love the look your going for but at the moment that piece looks uneven and the fins aren't straight. It does not look right at the moment. I hope you informed your source who made it for you and is making a better quality version. Like I said I love the look your going for and would love one myself but needs to be made alot better. Keep us updated.
Yeah, I plan on dropping the carbon fiber piece which is really the whole problem. The slots aren't fitting exactly right and it's not sitting straight on that cause of that. I'm planning on removing that piece and then it's perfectly straight afterwards. Then going to bring in an all-CF fin version. Better photos to come once I get that sorted out.

Last edited by Andy M; 06-03-2012 at 08:58 PM.
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      06-03-2012, 08:59 PM   #85
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Quote:
Originally Posted by Andy M
Quote:
Originally Posted by project335i View Post
Love the look your going for but at the moment that piece looks uneven and the fins aren't straight. It does not look right at the moment. I hope you informed your source who made it for you and is making a better quality version. Like I said I love the look your going for and would love one myself but needs to be made alot better. Keep us updated.
Yeah, I plan on dropping the carbon fiber piece which is really the whole problem. The slots aren't fitting exactly right and it's not sitting straight on that cause of that. I'm planning on removing that piece and then it's perfectly straight afterwards. Then going to bring in an all-CF fin version. Better photos to come once I get that sorted out.
Sounds alot better to me. In for pics of the new version
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      06-03-2012, 09:03 PM   #86
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Quote:
Originally Posted by project335i View Post
Sounds alot better to me. In for pics of the new version
Well, dropping the CF piece is easy to do. The whole thing is held on with three screws. And actually I've been having a lot of mixed feelings about it since it's quite a big cost and it doesn't do much.

From the meet today, most people noticed the fins, not the actual piece that sits on top and it kind of looks weird. So if I drop that, then it'll bring the cost down to make, the aluminum is really fast to do, and I already have all the parts I need for the aluminum fins so that means I can get it out faster. Switching to CF pieces for the fins will just mean the factory will cut the pieces from a flat sheet (as opposed to using aluminum). Seems like more people want that instead of the aluminum though.
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      06-03-2012, 09:24 PM   #87
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Quote:
Originally Posted by Andy M View Post
Well, dropping the CF piece is easy to do. The whole thing is held on with three screws. And actually I've been having a lot of mixed feelings about it since it's quite a big cost and it doesn't do much.

From the meet today, most people noticed the fins, not the actual piece that sits on top and it kind of looks weird. So if I drop that, then it'll bring the cost down to make, the aluminum is really fast to do, and I already have all the parts I need for the aluminum fins so that means I can get it out faster. Switching to CF pieces for the fins will just mean the factory will cut the pieces from a flat sheet (as opposed to using aluminum). Seems like more people want that instead of the aluminum though.
i for one would just go for the cheaper option
im just cheap but i think its too thin to notice the carbon fiber =/
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      06-03-2012, 09:59 PM   #88
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Quote:
Originally Posted by 1lyfe View Post
i for one would just go for the cheaper option
im just cheap but i think its too thin to notice the carbon fiber =/
Yup I agree. Plus it costs more for me and the lead time is longer. So...it's gone now. Just took some photos. Will upload them tonight...
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