considering using sturdy plastic poster-board or something similar to cover different gaps in the under-body to smooth it out and hopefully improve fuel efficiency. ideas on what to use wanted.I have a small coupe, i am not looking to pay to lower my car. i would like ideas to help me patch up the underbody please. cheap fix to try and save money; very handy and open to strange ideas. all help welcome;please helpful thoughts only thanks
well this is what i would do, don't lower the car just add a new front bumper or as you want to be cheap just add a front bumper wrap or you may hear it called a front wing / air dam. alot of the time the air dam will come primed and you need someone just to paint it (sometimes comes black) All you need is a drill and a few auto body clips ( and bolts that fit the clips) One of my buddies just added a air dam which came black (45 plus shipping) after that he just need to add bolts.
I would try using sheet metal if you still have the original underbody you can just make tips on the end and pierce it into it. thats a cheap fix. for the record you can always try a cold air intake they dont cost much and it will help out as well.
i hope u rnt seriously considering adding plastic underneath ur car...... 1 word......FIRE HAZARD!!!!! or is that 2 :)..... but yea don't do that now if ur talking about adding a front air dam u gonna need something stronger than poster board..... and btw most modern vehicles come wind tunnel tested from the factory... so u probably wont b improving much anyway.... and even if u do i doubt that u will actually see mpg improvements....
