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Join Date: Apr 2002
Location: Omaha, NE
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Calling all valance/rear bumper replacers...

Did you notice a significant/noticeable performance increase with the lightness you added? Isnt the difference around 150lbs? I would figure that would be equiv to a 19hp increase--worth few tenths 0-60 and better stopping and handling.

Aside from the asthetics improvements, is it worth the $1000+ investment for performance?

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1980 Black 911SC Targa 3.6L
Old 01-03-2004, 09:05 AM
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150? You might want to drop the 0 and you would be closer. The rear bumper and rockers with all the rubber weighs about 40-50lbs. A glass one weighs about 15lbs.
Old 01-03-2004, 09:11 AM
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I think there is a noticeable difference in my car without the heavy bumpers. I can't say for sure, but I think there is more than just a 30-40lb weight savings. If it is only that much, consider that the weight saved is at the furthest ends of the car and track handling will be greatly improved.
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Old 01-03-2004, 09:21 AM
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I bought a fiberglass rear bumper off of ebay, coincidently from another pelican person. After trimming some PO mods, and making cutouts to fit the B&B tailpipes, it weighs a little over 4 lbs.
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Old 01-03-2004, 12:42 PM
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The 150 lb figure I remember hearing includes removing all bumper peices including bumper shocks and other assoc hardware and replacing with fabricated lightweight bumper mounts. A number of people have done this mod and an accurate weight loss figure is out there I'm sure.
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1980 Black 911SC Targa 3.6L
Old 01-03-2004, 01:00 PM
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My rear bumper with all the fixins was nearly 60 lbs. What I added back was a total of around 8, so a net loss of around 50 lbs. Front was a similar loss maybe a bit more. I also removed the spare, unneeded tools jack etc. these totaled around 60lbs as well. Removed seats for a net loss of 7 pounds each, and removed rockers for a loss of about another 25 lbs total. (I was suprised how heavy those were). Also door panels for around a 3 pound drop each... do the math. Oh, and went back to Fuchs from BBS, for a rolling weight loss of about 5-7lbs per wheel.
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Old 01-03-2004, 01:47 PM
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I just swapped an RSR bumper onto the front of my car, and I *really* noticed the difference. I'm sure the rear bumper will be a HUGE difference with the polar moment of the car.
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Old 01-03-2004, 02:55 PM
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Ruf style f/r bumper cap and cooler will save ~20#s front and 15#s rear. These are not estimates, they are measured results(fogs removed as well)

All #s are not equal in their effect, these #s, situated at the extreme ends of the car, have a significant effect on the cars handling.

If you can live w/ the increased vulnerability to normal parking lot type incidents they will provide a meaningful improvement in the feel of the car.

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Old 01-04-2004, 11:58 AM
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