Originally Posted by wungun
SVT Focus...nice. I have one of those!
But I converted it over to the Euro only RS Focus model...
But having the engine tuned (for performance) Also gave noticeable gains in mileage.
There are a couple of really good tuners you can talk to on the popular focus forums which would be happy to sell you a flasher with a custom tune...One of which, offers free upgrade tunes if you happen to change somethings like throttle body, exhaust, filter, etc.
I've seen you lurking around the forums and have seen your car. Looks good btw. Also, I have a tune from the inidividual you are talking about
Originally Posted by wmjinman
I just couldn't believe it. "What about the air you're compressing underneath?!?!?! You've GOTTA be causing LIFT!" Not so. The air accelerates under the car just like it would over a wing, producing a low pressure area under there. "But what about the air 'trapped' between the car and the ground?" I asked. The answer: no air is "trapped" - it's flowing under there, and the ground is just the opposite side of the venturi throat. It has to accelerate, causing the pressure to DROP.
I remembered most of this from my aero classes which is why I was thinking/mentioning belly pans. There are a couple of the high end exotics that use them and can actually create a vacuum high enough to keep the car glued to the road, even if the road were to abruptly turn upside down.