Full Flat Undertray DIY
 

Recently.... I finished an full flat undertray DIY.
to maximize performance of RE-amemiya rear diffuser, it was designed to completely cover bottom of tranny and exhaust lines.
panels were made of aluminum 2.0mm sheet and placed a few NACA duct for cooling.
the yellow front undertray were self-made years ago for c-west aero.
see below pictures. ^^

https://cimg9.ibsrv.net/gimg/www.rx7...165e954c15.jpg

https://cimg0.ibsrv.net/gimg/www.rx7...43d414cbf8.jpg

Nice work

Yes, very nice. Slotted holes and clean fit.
Was the factory tunnel bracing or anything else removed? What were the panels secured to? What hardware was used? Any noise/rattling?

Really nice work.
Does it feel any different on the road?

Bet you could make a killing selling those. You already have the hard part done. Now mass produce.

Very nice! That would be a REAL chore to make without a lift!

I've thought about doing something similar, great job there!

Dale

Now that's a flat bottom!

Damn, that's impressive. I like the NACA shift to cool the exhaust.

Vince

Wow, hadn't realized there was room for that deep of a venturi under the differential- that might do something at speed!

https://cimg0.ibsrv.net/gimg/www.rx7...c9b5d867f4.jpg
I made the brackets to hold the panel. and can't hear any noise.

Love this. Well done.

WOW! This is awesome!

:worship:

This looks amazing! Great work :)
You could probably even sell these.

...or better yet for you, mass produce templates and bracket instructions and sell those. No fuss or hassle of having to produce, package and deal with shipping or customers :)

I would be in for that!

Jpr

Whoa! Thats perfect! What about the undertray braces. Did you have to remove them
?

​​​​​​
+1 on this!

yep. the stock under-braces fully remains.

for online selling, I'm preparing packing and installation instructions.
maybe It will be available in Feb.
thanks~

Yes! Please please make this happen. This will imensly help the fd

might be some variance with how the dp.. wastegate dump and exhaust hangs past these panels... but yeah nice work

That looks really clean! Well done, Jin-74!

Personally I think this is exactly why I would prefer to purchase a template over a finished product .I'd rather modify a template and make the part fit my car exactly, vs modifying a finished part and it not looking/working perfectly.

Problem is that selling a template like that put a lot of faith in the community, as you are basically selling a very easily stealable product (paper).
Just take one guy to put it up at ebay for half the price to ruin the business for the original guy.

Tho, i would buy a template myself for the same reasons you mention. :D