Post your DIY aero pics
06-04-2018, 10:56 PM
#1708
Senior Member
Join Date: Dec 2010
Location: Auckland, NZ
Posts: 992
Total Cats: 57
Actually I ran the same size splitter as you have made and ran it at Pukekohe with the usual wing for a lower downforce setup and had a scary lose of the front at turn 1 which is near flat in 6th! (Hankook Z214's notorious for no feedback letting go)
I honestly thought the suspension had broken it was so sudden.
So I vowed to never run that small again!
I honestly thought the suspension had broken it was so sudden.
So I vowed to never run that small again!
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06-07-2018, 10:49 AM
#1710
Senior Member
Join Date: Dec 2012
Location: Charlotte, NC
Posts: 538
Total Cats: 64
Dasting, what improvement did you see using the high mounted front wing? Gotta say it's not the prettiest, so hoping it worked well for you in lap time gains haha!
Any of you guys who have built your own floor, I'm currently making some test composite sandwich panels and wondering what you see in terms of load deflection? With my first off sample, an 11mm (7/16”) thick 300mm (12") wide strip, I clamped it to the bench hanging off 500mm (20") and put 2.3kg (5lb ish) on the end and saw 17mm (11/16") of deflection. This was very lightweight as I will continue to build the skin thickness, but just wondering if anyone else had made similar measurements?In case anyone's interested this was 600g/m² (18oz) fiberglass skins either side of 10mm blue modeling foam (polystyrene), weight is about 2.7kg/m² (5lb/yrd²). Comparisons are being made with carbon skins and different core materials, will see how I get on.
Any of you guys who have built your own floor, I'm currently making some test composite sandwich panels and wondering what you see in terms of load deflection? With my first off sample, an 11mm (7/16”) thick 300mm (12") wide strip, I clamped it to the bench hanging off 500mm (20") and put 2.3kg (5lb ish) on the end and saw 17mm (11/16") of deflection. This was very lightweight as I will continue to build the skin thickness, but just wondering if anyone else had made similar measurements?In case anyone's interested this was 600g/m² (18oz) fiberglass skins either side of 10mm blue modeling foam (polystyrene), weight is about 2.7kg/m² (5lb/yrd²). Comparisons are being made with carbon skins and different core materials, will see how I get on.
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06-07-2018, 06:55 PM
#1711
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Join Date: Oct 2011
Location: The Race Track & St Pete FL
Posts: 638
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Just curious if anything ever came of this. Didn't see anything in the other old composites thread. Am contemplating attempting a fiberglass/foam core sandwich for flat floor/diffuser. I do not have the time/money/patience for vacuum bagged CF, and am looking for cheap experimental alternatives to the dibond I have now, which is heavy and requires a lot of additional bracing for rigidity (I have to mount below the "frame rails" in my RX7 due to exhaust, trans, diff, and bellhousing clearance issues.) There are some shapes in the back I'd like to play with that rule out other flat/plate materials like alumalite.
Remember that with a core, what ever side the load is on is the side you make sure its stronger. If you put weight on your laminate from the top, the top will most likely fail withe carbon skin buckling and over lapping itself and not the other side ripping the CF.
https://compositeenvisions.com/carbo...z-50-1115.html
What I've figured after years of working with composites is that what ever the thickness of your composite CF/Core/CF is going to be as stiff (not as strong) at the same thickness of T6 Aluminum.
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06-08-2018, 08:41 AM
#1712
Senior Member
Join Date: Dec 2012
Location: Charlotte, NC
Posts: 538
Total Cats: 64
I build CF panels for Military OEM C-17 Air Craft. I would go CF because the cost is lower than ever.
Remember that with a core, what ever side the load is on is the side you make sure its stronger. If you put weight on your laminate from the top, the top will most likely fail withe carbon skin buckling and over lapping itself and not the other side ripping the CF.
https://compositeenvisions.com/carbo...z-50-1115.html
What I've figured after years of working with composites is that what ever the thickness of your composite CF/Core/CF is going to be as stiff (not as strong) at the same thickness of T6 Aluminum.
Remember that with a core, what ever side the load is on is the side you make sure its stronger. If you put weight on your laminate from the top, the top will most likely fail withe carbon skin buckling and over lapping itself and not the other side ripping the CF.
https://compositeenvisions.com/carbo...z-50-1115.html
What I've figured after years of working with composites is that what ever the thickness of your composite CF/Core/CF is going to be as stiff (not as strong) at the same thickness of T6 Aluminum.
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06-08-2018, 11:18 AM
#1713
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Join Date: Jul 2006
Location: San Diego
Posts: 3,303
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If you were vacuum bagging I'd say CF because you're already putting so much cost and time in that you might as well. If it's just a wet layup there's no chance of pulling enough resin out to make a massive difference in strength and weight, so might as well be FG. Do spring for epoxy resin, that will make more of a difference in strength in your case over polyester than the extra cost for CF material vs FG.
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06-18-2018, 03:53 PM
#1717
Newb
Join Date: Oct 2014
Posts: 4
Total Cats: 0
Rear Wing on my '91 car for the German Solo Championship
Price approx 600Euro, made from Aluminium and Carbonfibre. The size is in compliance to the rules in the German Championship, that means that all aeroparts should not to be seem in the front projection plane.
After one year of driving with this wing I'll found that I will need (only a little bit!) more downforce on the front axle. I started the work on a splitter splitter these days and give fotos to this platform.
Jan
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06-20-2018, 11:35 AM
#1720
Junior Member
Join Date: Mar 2016
Location: Lexington, KY
Posts: 150
Total Cats: 75
I was interested in that as well.
I found these:
https://global.rakuten.com/en/store/...item/10000025/
Need to do some more digging but probably something difficult to source in the US.
I found these:
https://global.rakuten.com/en/store/...item/10000025/
Need to do some more digging but probably something difficult to source in the US.
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