OMG! that ducting is beautiful Jeff! Very very expert indeed.

Jeff, Do you happen to have the dimensions for the piece you made?

Ill measure it for yah. Thanks Sven! And yes, I've used this plastic everywhere, its great stuff. $60 for a 48x96 sheet is cheap too.

I made an undertray for the GV lip years ago using 1/8" ABS plastic, textured on one side.

https://www.miataturbo.net/general-m...oo-long-18521/

I also bought it locally from a plastics/sign place. It wasn't too expensive and the material is pretty easy to work with. My undertray saw hundreds (thousand?) of abusive track miles and very high temps near the downpipe on track, and I never had any problems with it. After parting that car out, just last year I repurposed that undertray to make an airdam for my STL Civic race car.

Point being, I think ABS is great for stuff like this if you can find a place locally that sells sheets of it. Jeff did a great job making the "air guide" out of it, looks excellent!

The TSI's don't bug me as much with the front lip. The ducting looks like a production piece that I would over pay for off a random vendor website. Keep up the good work!

Started on the rear lip. This is going to be a bitch since I have dual exhaust cutouts, so I need to cut the lip in 2 places and then curve it just perfectly otherwise I'm sure it will look like ass. Also with the mudguards I need to cut some notches into them and somehow make it look good too.

For some reason on the front lip I forgot I had trim piece strength 3M double sided tape. Going to have to remove it and put some on since it made this so flush against the body.

Having 5 or so vice grips helps the adhesion really well. I did sink in 2 bolts/nuts for extra strength too.

https://www.miataturbo.net/attachmen...ine=1396551096

https://www.miataturbo.net/attachmen...ine=1396551096

I also took some measurements for those that are considering making the front air dam as I did. Yours might be a little different though so be sure to take your own measurements before you cut!

Length of the bottom

https://www.miataturbo.net/attachmen...ine=1396551096

width from the center of the bottom part

https://www.miataturbo.net/attachmen...ine=1396551096

Length of the side vertical section

https://www.miataturbo.net/attachmen...ine=1396551096

Width at the top of the vertical section

https://www.miataturbo.net/attachmen...ine=1396551096

Width at the bottom of the vertical section

https://www.miataturbo.net/attachmen...ine=1396551096

You are the MAN Jeff! Thanks so much!

OK, second compliment on the same thing, but that IC duct is really nicely done.

I think this may be mt.net's most popular thread ever. Getting close to 200K reads. You blew away the kitten and cat thread some time ago.

Where's FAB? He needs to be selling these ducts as an option with his intercoolers.

Fae's thread is still #1 at the moment with over 244k views followed by the 2jz build thread which is just slightly ahead of Jeff but I doubt that will last.

I have been making call's all day and I cannot get a solid answer about getting a sheet of ABS plastic. It's not like I live in the middle of nowhere either.... I am in South Jersey for crying out loud! I have tried sign shops, glass stores (I got a tip that they might be able to help me, but no luck yet), etc .... Looks like I might have to order it online and get nailed with shipping :yippee:

You plan on doing the lip with the mud guards? I've always thought the rear lip and the mud guards together looked weird, mainly because of the way they have to join each other.

Your work never ceases to amaze...

Did you call all the advertising companies or people who make the VOTE FOR THIS DICKHEAD signs? Ask them if they can order any from their material provider.

If those companies don't pan out then google plastic supplies companies. Those who work with the raw material usually will have it. That was my original source but they needed a minimum amount ordered and only had it in 1/4" thickness.

You are seriously too kind. I'd have to make a REV.4 to be ok with providing a template to Bryan to sell. Also what you are't seeing is all the holes I had to drill into the factory undertray, add screw fasteners, and pull the undertray/tug/tweak it so that is would screw into the ABS plastic. The undertray is about 1.5" higher than the plastic so the undertray needs to be pulled down to connect it to the air dam. Easy if you don't mind taking the undertray off. Did you understand all that? Been a long day of interviewing 20+ applicants so my brain is fried.

I think the reason they always look weird is because people tend to cut the lip rather than the mudguards. Or, when they cut the mudguards they don't take into account the curve, so there is a gap.

I'm pretty much going to take the long and finicky path and do it all with a rough rasp file and test fit it 50 billion times to ensure I don't take too much material off.

Also Yezzir here is a rough google search of various plastic manufacturing companies in the jersey area. They both stock ABS so maybe try calling them and asking for some material.

1/8" Textured ABS plastic sheeting

Company Info | Plastic Supplier | Plastic Distribution and Fabrication

About Us

There's a local plastics store close to where I live. They stock large sheets of ABS so I'll check that out for future projects. Thanks though! Good luck with the mud guards.

Both look good, imho, but the lights looks cleaner and more refined. I'd have been fine with the TSI's but I think once I get the car back on the ground the lights will look better.

*edit* Also the nice thing about the side markers is that the rear side markers are less smoked then the fronts. Less likely to get shit from the cops with the rears being less tinted.

Before

https://www.miataturbo.net/attachmen...ine=1396582610

After

https://www.miataturbo.net/attachmen...ine=1396582610

https://www.miataturbo.net/attachmen...ine=1396582610

Omg yeeeeezssssssss

Where is the +1000 props button, when you need it...

For those looking for ABS Amazon has the one sided textured stuff. 24x24 is around $18 shipped with Prime..

10/10 would prop again. Disregard my previous comment about the TSI's looking ok with the lip; this looks so much better.