September 15, 2019, 03:55:16 PM

Author Topic: New Aero Rice  (Read 4501 times)

Offline Kevin Doe

New Aero Rice
« on: September 04, 2016, 09:17:34 PM »
Started here....

Wing by Kevin, on Flickr

Wing by Kevin, on Flickr

Bumper done...
Wing by Kevin, on Flickr

Then mocking up some designs for uprights.
Wing by Kevin, on Flickr

Wing by Kevin, on Flickr

Wing by Kevin, on Flickr

Finalizing the design in CAD.
Wing by Kevin, on Flickr

Some FEA work.  This is with downforce and drag load (max AOA, 160 MPH, 1.5x on loads for factor of safety)
Wing by Kevin, on Flickr

Side load added in. 3Gs x 1.5.
Wing by Kevin, on Flickr

Lateral Deflection from side loads (which equated to ~75 lbs).
Wing by Kevin, on Flickr

Brackets waterjetted out of 3/8" 7075-T651 plate.  Then roundovers added with a wood router with a carbide bit.
Wing by Kevin, on Flickr

Wing by Kevin, on Flickr

Powdered...
Wing by Kevin, on Flickr

And done...
Wing by Kevin, on Flickr

Wing by Kevin, on Flickr

Wing by Kevin, on Flickr

Wing by Kevin, on Flickr

Wing by Kevin, on Flickr



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Online wickedrx7

Re: New Aero Rice
« Reply #1 on: September 04, 2016, 10:00:08 PM »
Seems like it's been awhile! Looks great. I remember the thread on forum doing a similar design but it mounted below the rear bumper.

1993 Touring, 2012 L99, T-56, Ronnin 8.8, Ohlins, Speedhut, Samberg and lots of custom parts
Build Thread - http://www.norotors.com/index.php?topic=19354.0
Pictures - www.flikr.com/wickedrx7

Offline Ebush

Re: New Aero Rice
« Reply #2 on: September 05, 2016, 01:19:31 AM »
Looks great! Hope to see the car around at some local events. Been a few years since I've seen it anywhere.

Offline Cobranut

Re: New Aero Rice
« Reply #3 on: September 05, 2016, 12:26:03 PM »
Great engineering and workmanship, but yeah, very ricey.   :poke:
1995 FD, 7.0 Liter stroked LS3, T56, 8.8, Samberg kit.

Offline tai-lun

Re: New Aero Rice
« Reply #4 on: September 06, 2016, 01:27:56 AM »
I am a fan of this functional rice, and may even be joining the big wing brigade one day too.

Looking forward to hearing about differences post wing, fantastic fab work as always. Is it a GT300 or GT500 from APR?
Tai - 93 LS2 Ronin Widebody FD
Build Thread: https://www.norotors.com/index.php?topic=9172.150

Offline Kevin Doe

Re: New Aero Rice
« Reply #5 on: September 06, 2016, 09:10:54 AM »
Thanks guys. It is an APR GTC-300
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Offline Supe

Re: New Aero Rice
« Reply #6 on: September 06, 2016, 09:44:41 AM »
Very nice!  I need to do something similar.  My current setup is way too draggy. 

Offline sunshine

Re: New Aero Rice
« Reply #7 on: September 06, 2016, 05:31:26 PM »
looks really good!
props man!! you should consider producing/selling this setup.

Offline spacevomit

Re: New Aero Rice
« Reply #8 on: September 06, 2016, 05:43:17 PM »
Nice work. Now you should make a rear diffuser.

Online markfluko

Re: New Aero Rice
« Reply #9 on: September 06, 2016, 06:15:23 PM »
Always good to see a post from Kevin!

Any post on the front splitter build?

I have the same wing... and now our cars look nearly identical - mine being the neglected step child.  :cheers: I may beg you for the CAD file because I DO NOT like the way the APR mounts fit on the hatch... also I want to go with a CF hatch and don't want to drill into it.

IIRC you run mostly autox, and I believe the rules for XP don't allow for any part of the wing to go beyond the rear of the car.

"In addition, no portion of the wing or its components may be more than 6 (15.24 cm) forward
of the rear axle, more than 0 (0.0 mm) beyond the rearmost portion of the bodywork"


Also looks like your splitter might be too wide also...

"No portion of the splitter may extend beyond the widest part of the front bumper as viewed from above."

http://cdn.growassets.net/user_files/scca/downloads/000/017/206/2016-8-23_Appendix_A.pdf?1471970139

Not hatin', just want to make sure you know in case you decide to make the trip to Lincoln!


Offline AKINA FC

Re: New Aero Rice
« Reply #10 on: September 07, 2016, 12:16:13 PM »
Very nice work Kevin  :cheers: I need to get around to mounting my new foil as well.
[smg id=6531]

Offline gnx7

Re: New Aero Rice
« Reply #11 on: September 09, 2016, 01:54:50 PM »
Let us know how it works out this weekend.   I believe you are going to a mixed event with AutoX, drag, and something else ;)
'93 FD: 441ci/AllPro LS7 heads/intake en route, T56 Mag, 8.8" IRS, HolleyHP, DavisTechTC 10.32@137mph cats/full exhaust. 165mph 1/2 mile (old LS7)
'93 FD LS9 turbo, T56 Mag, Samberg 8.8" solid axle, 9.35@163mph 197mph 1/2 mile
`69 Chevelle: alum 5.3, GTS76 turbo, ChiseledPerf A/W, T56 Magnum,Ford 35 spline 9".CTS-V interior http://www.norotors.com/index.php?topic=18234.0
old yellar....440rwhp/FD sold but not forgotten: http://www.ponycars.net/scc.htm
I sell new T56 Magnums/McLeod clutch/T56 rebuild kits/Holley EFI/FIC injectors and all BrianTooleyRacing parts.  norcalmotorsport@gmail.com

Offline frijolee

Re: New Aero Rice
« Reply #12 on: September 09, 2016, 04:43:34 PM »
Nice fab Kevin!

Questions:

-Any tips or trick on using a roundover bit in a wood router?  I'm going to try that.
-Can you open your hatch?  On an FC it's not even close, at least if you try to align to Autocross rules about zero overhang that is.
-Any reason you didn't go bigger with the lightening holes?  FEA looks like the only hot spots are hardware.  What did you decide on for your pass/fail criteria? 

Regards,
Joel

PS what's the event?  Car's looking great.  Good luck to you!
« Last Edit: September 09, 2016, 04:52:31 PM by frijolee »
LS2 stroker FC, Mandeville big brakes, widebody, etc
Build thread:  http://www.norotors.com/index.php?topic=1274.0
www.roninspeedworks.com

LargeOrangeFont says: "Joel is right, and I love Joel. But his car sounds like the wrath of God."   ;)

Offline Kevin Doe

Re: New Aero Rice
« Reply #13 on: September 11, 2016, 10:46:51 PM »
The even was LS Fest this past weekend, in Bowling Green KY.  I was there, but unfortunately my tires never came in (ordered Jun 1st).  The BFG Rival S's are impossible to get last in the season, so I was just a spectator.

The wing mounting won't pass SCCA XP rules, it is about 1.5 or 2" past the rear of the bumper.  I don't really care to compete in SCCA competitively anymore, so I didn't pay too much attention to meeting those rules.  I'm planning on doing some more of the Pro Touring events like the Optima Events, and Midwest Muscle Car challenge, Northeast Muscle Car challenge, LS Fest, etc. I will be changing the car's setup to work with a 200 TW tire, so that will be fun.

Tips on the routing.  Use a lot of lube.  Cutting dry with a carbide bit left the surface marred looking.  I doused it in WD-40, and all was well cutting after that.  Also, i think the lowest setting on my router is 8k rpm, which seemed too high based on what I was calculating for surface speed, but it worked really well.

As far as lightening holes, the bending stiffness is what was really limiting.  I was trying to keep under 1/4" deflection laterally.  After having it on the car, and pushing around on the wing, it is VERY stiff.  I probably could have went more aggressive with the lightening, but it would only have saved a few ounces.

Splitter build.  I was really slacking on taking any pics.  I'll give a really quick run down.  I overkilled it, its too heavy, and stupid stiff.  I'll be making another, probably this winter.  I did 7 plys, core, 7 plys.  I could stand on it before I installed the front struts.  I'll probably go 4 core 4.  I would probably get away with 2 core 2 for stiffness, but for impact (cones), I'm thinking I'd like the leading edge to be close to 0.1" thick or so of solid composite.
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Offline Kevin Doe

Re: New Aero Rice
« Reply #14 on: September 11, 2016, 10:48:27 PM »
And anyone that wants the CAD files for the uprights just let me know where to email them to.  I can send as a .prt for NX, or export in any format you want.  I have .dxf formats already done for water jetting too. 
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