CM, no worries, just pointing it out
Please check out my build thread, street, track, site seeing, audio, lower weight, do it all retirement car that had to fit in a toyhauler trailer...and bit a bit of a fox in sheep's clothing
http://http://www.fiestastforum.com/forum/threads/1836-RAAMaudio-ST-street-track-dog-hauler-grocery-getter-ultra-low-weight-audio
I need to take some pics of the ducted part I cut into the rear offset a bit to the passenger side. It is a curved area around 12" wide by 15" deep that bends up towards the DP and is lined on the sides and down into the air stream where I added another section to the leading edge of the chassis brace/rear under tray mount. This really helps pull air out from the engine bay and reduced heat a great deal.
I did this on advice of the Ford race shop manager at Miller Motorsports park when he saw my car on a lift, after he drove and loved it
He said I could have heating issues with that big of an under tray covering so much area so recommended ducting, which I did the right away.
He liked the 3-way rear mount I made, part mount, part subframe brace and part "wicker bill" attached to the car with Rivnuts to the subframe, low weight, low cost, effective. He did however recommend I add a rubber strip to the bottom and to do some work in front of the tires which I have not done yet. I mentioned I felt the car was solid enough that just a 2 point brace was sufficient and he agreed. I tend to listen to the the advice of a well seasoned race shop manager in charge of dozens of race cars and the Octane Academy cars and prior years in the same position at the Audi race shop. We talked about some other aero issues if you wish to discuss them with me by all means PM or call please.
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I will have to be able to remove the splitter easily for the track as I can barely get my car in the trailer with just the TR one that barely sticks out, very tall trailer, using long Race Ramps and using the electric trailer jacks up front to get the rear of the trailer as low as I can go but mounting strength is paramount of course so I will work with what I have to make it do what I need depending on final design.
Thanks for posting the great pics of the splitters, the build quality, real race parts....
Rick