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Originally Posted by Isphius
I took my whole rear wiper assm. and wiper arm off, and it probably does weigh about 15 total. The power antenna is another 8 or 9 pounds too.
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you're dreaming! I happen to have a wiper motor/arm assembly right here in my hand. Using a postal scale it weighs in at a WHOPPING.... 2pounds15ounces
...and to the person that said take out your rear interior and replace with board covered with carpet...have you ever weighed the plastic rear panels? I have cause I have em up on ebay right now. All combined, if you took out the 7 panels (and not including the seats) you would have taken out right around 22 pounds (the quarter window trim being the heaviest at 2.5lbs). I wish I had a 4x8 sheet of, lets say you used wallboard (gonna be lighter than masonite by about half). I would bet your net weight reduction would be about....+20lbs. Adding weight is not what were looking for here. That stuff is far heavier than plastic.
Lets say you rip out your seats (leaving only one fiberglass racing bucket in the drivers side), A/C unit, run no spare, replace the hatch with lexan, pull your window regulators, weld in a shorty exhaust (side exit), go to an aluminum radiator, and strip out all the sound deadening. Now lets add a set of super lightweight rims, but forget about safety and forego the roll cage, racing harness, fire extinguisher, battery box, driveshaft loop, bellhousing blanket, or any of that other useless stuff.
My best estimate and being quite generous I would say you dropped 500lbs? While that may translate to a full half second at the strip, you now have a non-street legal race car, that will be loud enough to wake the dead, rattle like Cessna in a hurricane, and cook you like a Christmas goose in summer. Not that you'll ever get to sit in it much 'cause sitting in a racing bucket is about as much fun as pounding your balls flat with a wooden mallet!
Yeah sign me up for that!
All Im trying to say is be reasonable. If you want a full blown race car with Zero amenities, great! but if you think you're gonna shave enough wieght out of a daily driver to gain a whole half second at the track you're gonna be dissappointed, and in the end your gonna have a car that no fun to drive to the store and back, much less take a trip to the mountains or coast or wherever you like to go to get away. The Supra is a pig, face it! you're FAR better off spending your time and money on HP upgrades.