Interest in aluminum custom front undertray replacement?

[admranger]

Originally Posted by 330iToy

I know everyone keeps it under 100 mph, right.

Between the garage and turn 1, yes.

[roastbeef]

Originally Posted by 330iToy

I was under the impression that the two pieces that hang lower then the splitters on both sides serves as aero parts for down force. Plus air flow. Is that wrong? The ones that always break off. This setup does not have them. BMW wind tunnel tests every part. I am in, but it has to be a low price. Strength is great, but losing something at speed is not. I know everyone keeps it under 100 mph, right.

those little notches start to split the air in front of the tires. you're right, they are aero pieces.

[tdott]

Yes, please take my money.

[DemolitionJim]

I'm in. That stock felt undertray is a pain in the ass on low cars

[bmwfst1]

How come the pics don't work.

[Ngilbe36]

Originally Posted by Level3

Trying to gauge interest in an aluminum replacement for your plastic factory under tray. I recently needed to replace parts of mine and thought that the cost was ridiculous for basically throw away parts. Saw a post where a guy here was trying to make a custom under tray but he couldn't get the cost down to a reasonable level. It's very similar to what me and my buddy Zach mocked up below. He's an engineer and knows guys that produce these types of parts... if he orders these parts produced in bulk the price comes down considerably. I'm definitely having one or two of these made for myself but wanted to see if any of you guys would be interested in purchasing one of these for yourselves, and if so... what would you pay for a product like this. Anyways, here's a 3d model of what it will look like... it replaces parts 20, 23, 23 on the diagram below and uses existing screw holes.

__________________________________________________ __________

I am interested to the point that I am going to try and fab one in the next few weeks. Do you have the CAD file from the image you sent? Is it all the correct dimensions?
I am between printing a full size image on a plotter, or buying a new one and using that as a template.

Currently I am looking at 5052 Aluminum, for its corrosion resistance, and am still deciding on .63 or .9 inches thick material, weighing .9 and 1.3 lb/ft respectively.

Anyone have any thoughts or recommendations before I begin?

[admranger]

Originally Posted by Ngilbe36

__________________________________________________ __________

I am interested to the point that I am going to try and fab one in the next few weeks. Do you have the CAD file from the image you sent? Is it all the correct dimensions?
I am between printing a full size image on a plotter, or buying a new one and using that as a template.

Currently I am looking at 5052 Aluminum, for its corrosion resistance, and am still deciding on .63 or .9 inches thick material, weighing .9 and 1.3 lb/ft respectively.

Anyone have any thoughts or recommendations before I begin?

Goodness that'd be some thick stuff! Did you mean 0.063" and 0.090" thick? I'm not sure I need a 9/10ths of an inch thick chunk of aluminum unless I'm rallying the car!

The key is to seal the tray to the bottom of the oil cooler to keep the air flow going through the oil cooler and the radiator and not around them.

[Ngilbe36]

Ha. Yes. Thank you 0.063 and 0.09 inches. I could use it as a plow otherwise http://www.m3post.com/forums/images/smilies/lol.gif

[///M3 Gusta]

I'm interested and currently need to replace my OEM parts. ETA on production?

[4M]

Count me in too.

[ASBSECU E93]

+1

[Powashiftin]

I'm in pending price. I didn't see a clear answer on the front Left and right pieces that continually break... would this aluminum piece replace everything ?

[bmwfst1]

i think the piece looks great. Im in depending on price. Im willing to pay a little more than the cost of felt pieces because this is much better and i think other people will be to. Everyone will need to replace them sooner or later. I think 063" is fine because it will still be much stronger than the felt. i got a cfds in a group buy for $1100 which is a little more than the stock piece which needed replacing anyway.

[Level3]

Originally Posted by Powashiftin

I'm in pending price. I didn't see a clear answer on the front Left and right pieces that continually break... would this aluminum piece replace everything ?

Yeah... it would cover that portion as well... It will not deflect wind like the pieces that go down. To incorporate those pieces in the geometry they are from factory would make the piece much more complex (more expensive). Right now we are trying to affordably make the flanges that direct air around the oil cooler. Want to keep the thing as inexpensive as possible while being functional.

[HomoPirate]

Good idea and take my money

[///M3 Gusta]

Originally Posted by Level3

I think to make it worth it they are going to be around 300 bucks. Could be less... depends on how big the batch is.

I'll spend $300 on one.

[Gripster]

Sign me up for these. I just tore off one of my side pieces that I replaced in December. Ugh.

[MTM]

+1...have always felt like the plastic/felt stock pieces were a bit silly.

[kyippee]

I need it; the felt part isn't in great shape for my car either

[vincE92M3]

Originally Posted by 330iToy

I was under the impression that the two pieces that hang lower then the splitters on both sides serves as aero parts for down force. Plus air flow. Is that wrong? The ones that always break off. This setup does not have them. BMW wind tunnel tests every part. I am in, but it has to be a low price. Strength is great, but losing something at speed is not. I know everyone keeps it under 100 mph, right.

I was thinking the same thing here.

That being said, I am interested.

[///M3 Gusta]

Any updates?

[Richsocal12]

im in