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Old 04-16-2011, 09:35 AM   #22 (permalink)
piers.singer
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Quote:
Originally Posted by ngrimm View Post
I cut the dam off two inches in height got it all fastened down with screws in the dam part and heavy plastic ties (rated at 175 lbs) for the belly pan part. Still need to add the chin. I used a sawsall and a small sabre saw to do all the cutting. A step bit worked really well for drilling the holes. So the pan bows down about 3 inches as it passes under the front diff and bows back up about the same distance once behind the diff. Should I have kept it at the same level after the diff?
The ideal, as far as I can understand the science, would be to have the pan level with the front dam until it passed behind the rear diff, after which it should gently slope up. Like the other chaps have said, the purpose of the air dam and splitter is to make a clean separation of the air-flow, so by introducing an angle at the front, you might well be messing it up.

Whether or not the difference is measurable, I don't know, but that's how I understand it. Anyone, please feel free to correct me.
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