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Old 03-16-2008, 10:24 PM   #11 (permalink)
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I can comment on the noise level being reduced when I briefly had a full belly pan on my Firefly. I recall krousdb saying the same thing - he's added full pans to 3 of his cars so far.


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Old 03-16-2008, 10:44 PM   #12 (permalink)
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Nice work on the REX!
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Old 03-16-2008, 10:54 PM   #13 (permalink)
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Otto ~Welcome to the community.
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Old 03-17-2008, 12:01 AM   #14 (permalink)
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Very nice. How much would you charge to do my Prius?
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Old 03-17-2008, 01:14 AM   #15 (permalink)
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Quote:
Originally Posted by MetroMPG View Post
I can comment on the noise level being reduced when I briefly had a full belly pan on my Firefly. I recall krousdb saying the same thing - he's added full pans to 3 of his cars so far.
How much quieter did it get?

Smoother flow and greater aero efficiency would make less wind noise under the car, less engine noise since less throttle is needed for propulsion, and the coroplast acting as an insulator/reflector of noise away from the car body. In theory.

Can you hazard a guess as to decibel reduction?

How durable and fireproof has the coroplast proven to be? In other words, what shape is it in after a couple of years of driving? Or, am I gonna have to shinny under the car constantly to mess with this stuff?
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Old 03-17-2008, 01:50 AM   #16 (permalink)
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Hmmm, need a cheap source of coroplast locally. Somehow, I think Sam's Club would get upset if I stole the big sheets from their shopping cart garages...

I have the added challenge of trying to smooth the bottom of a Jeep with a shovel for a transmission skidplate.
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Old 03-17-2008, 11:31 AM   #17 (permalink)
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Otto - can't hazard a guess on decibel reduction. Though all your points are valid. The belly pan was only on my car temporarily. For safety, I used a mix of aluminum flashing (near the exhaust) and coroplast.
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Old 03-17-2008, 04:58 PM   #18 (permalink)
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My coroplast underpanelling has been in place since May 2006 with no deteriation problems. Since its made of thin polyethylene, it should last well in locations like the underside that don't get a lot of direct sun, but will get brittle after a few years exposure to direct sun. I've replaced all of the coroplast on the top and sides of my car with aluminum sheet, but left the underpanel, side skirts, and front wheel spoiler in coroplast for its flexibility when hitting road debris.
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Old 03-19-2008, 11:40 AM   #19 (permalink)
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Props on the Coroplast! I am going to experiment with it until I achieve a final shape. That will be my pattern for thin sheet aluminum.

With all of those projects of yours, a good set of ramps and a 2-ton engine hoist might be a wise $200 investment. Much cheaper that the ER.

I saw the 3-wheel motorcycle on your website. Great idea! Is it a 2-seater? What front suspension did you use?

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Old 06-08-2008, 04:40 PM   #20 (permalink)
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That is exactly what i wanna do to mine.

What mpg change did you get?

Any issues with it so far?

Thanks!


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