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  #11  
Old 21-12-17, 12:41
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How about inflatable 'tubes' sealing the floor? inflated by the exhaust, then deflated by the engine vacuum at the finish line!

After all, the 40mm is only a static measurement in the paddock

The worry about the fans stopping is no worse than any other part of the car failing, so a none issue really.
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  #12  
Old 21-12-17, 14:34
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Filmstar.... The wishbones are part of the suspended car (hence their movement).... But imagine a big rectangular carbon 'flymo' deck....attached at the four corners to the bottom upright bolts (definitely not suspended and exempt from the 40mm rule) Big' trough' down the middle the width of the car floor with minimal ground clearance to allow the car to move up and down on its suspension as normal..... Fan either side pulling from the two 'plenums' ..... Whole lot could be right down near the road as only movement would be tyre compression (would need some sort of non-compliant mounting at the corners to account for differential wheel movement over bumps)... .. All academic of course as skirts blanket banned by previous paragraph... Would be fun to see it it could be made to work tho. :-)

Last edited by image; 21-12-17 at 15:26.
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  #13  
Old 21-12-17, 17:08
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can the floor have a skirt on it as long as it does not go below 40mm
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  #14  
Old 21-12-17, 17:54
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Quote:
Originally Posted by firepete999 View Post
can the floor have a skirt on it as long as it does not go below 40mm
I think so Pete, static measurement. When the car is moving, with downforce of course, the skirt might be a lot closer to the ground.
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  #15  
Old 21-12-17, 18:01
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Most undertrays(including mine) have a downturned lip that is just a skirt really down the sides... But that still can't go below the 40mm limit.... Just creates a 'tunnel' and limits vortex creation at the edge of the tray. Guess you can have pretty much any configuration of aero or bodywork along the bottom of the car as long as none of it gets closer than 40mm to the ground when you're sat in the car stationary
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  #16  
Old 21-12-17, 18:04
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And the venue has a certified "flat" area to measure you .... I'll get my coat...
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  #17  
Old 21-12-17, 20:06
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What material is best for the side skirt? I'm looking at some right angled 40mm plastic strip from B&Q but Pete's found a rubber strip that is used to exclude draughts on garage doors.
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  #18  
Old 21-12-17, 20:27
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Delta Motorsport and Ariel . . . seem to do a lot of work together . . . was down there the other week . . .
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  #19  
Old 21-12-17, 20:59
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Whatever material suits you as long as it's rigid enough to hold its shape... I used ali angle for ease of sourcing but something more flexible might be good. Lip is vulnerable to wear if the combination of downforce and bumps ground it at speed... and also when loading and unloading from your trailer unless your ramps are dead straight!.... What were you up to down at Ariel Ferg?.... Looking for a tango replacement?? :-)
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  #20  
Old 21-12-17, 21:05
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Doing a lot of automotive related work a.t.m. and the wonderful midlands is the place to be . . . had a nose around some racing vehicles and a sniff of roasting semiconductor . . . which may be quicker than something that smells of petrol (well, a lot quicker) but I like the smell of petrol better . . .
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