Quote:
Originally Posted by whatmaycome14
Right now my underbody is horrible. I'm doing ABA testing tomorrow on the front dam, so I'll post results on the effect it had on my car.
Ultimately, I've been cringing at the increase in frontal area and do intend on a full underbody pan when I get access to a lift. Jack stands in the driveway just won't give me the kind of clearance I need to build such a thing!
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I thought the same- theres not enough space!
After I got under it and measured (lift), then got under and built one on a lift, I found that I really could do it underneath (on my ramps). As it gets colder, I will spend less time on the ground, but while it's nice out, I won't sweat as much.
And design, design, design! Mine is three pieces, rear to front. This is so there can be reasonable overlap, and the wind doesn't catch it.
At the very rear, I have the diffuser. Tucked into/out of/into/out of/into/out of/into, and attached every few feet at different points, is the rear panel. Air
shouldn't be getting in my rear bumped from underneath, rather flowing along the panel. This goes from under my rear bumper to the mid of my cabin. The next piece covers that (by over 6 inches) and connects to a bar right before my front wheel wells, this is also just before I get to the engine drain plug. The final piece connects at this bar, not really overlapping but connecting to the bar so it can drop and hang from it. The beginning attaches at the very front, inside the bumper. The bumper hangs a bit lower, and I also have an air splitter helping keep the air apart (what is supposed to go underneath, and what should be pushed to the sides). The part that is attached to the bar works like a swing. So for an oil change, only the front zip ties need to be cut, the front drops down while the rear hangs up, and oil drain plug and filter have easy access.
It's been a while since my most recent build, and I don't change my own oil- but it made sense when I built it. The Ford techs have never had an issue with it, as long as they are aloud to rip out my SC&UG (EVERY F___ING TIME!!!), and remove my front seat and sit in the back (I literally fall backwards every time I get back into the car. Every time.).