Suspension and Chassis Questions about your suspension? Need chassis advice?

how much weight would I save??

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Old Oct 26, 2005 | 03:16 PM
  #1  
leeperryracing's Avatar
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Joined: Apr 2004
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From: Denver, CO
Car: cleanest '86 sport coupe around!!
Engine: 355ci twin 66mm turbos on e85
Transmission: built rmvb th400 w/ t-brake
Axle/Gears: 3.23
how much weight would I save??

by swapping the heavy a$$ power doors in favor of manual doors, how much of a weight saving would i get or is it even worth it?
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Old Oct 26, 2005 | 03:42 PM
  #2  
Forshock 85TA's Avatar
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Joined: Jul 2004
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From: Victorville, CA
Car: 85 Trans Am
Engine: 350 (CCC QJet)
Transmission: 700R4
Axle/Gears: 3.08 9 bolt
about 5lbs... search its been said and argued...
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Old Oct 26, 2005 | 04:05 PM
  #3  
ME Leigh's Avatar
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Joined: Jan 2002
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From: Valley of the Sun
Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
Some say its a wash, with which i would agree.
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Old Oct 26, 2005 | 07:18 PM
  #4  
AlkyIROC's Avatar
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Depends how you look at it.

When I took off my power doors I weighed them. Cut the harness, unbolt the door and put it on a scale = 105 pounds each.

I picked up some non power doors from the junk yard. Cut out the crash bar, removed the inner panels, cut out as much inner metal as possible and recovered it with sheet aluminum. Removed the mirrors and welded a patch in the hole. Final weight = 75 pounds each. Changing both doors, I shaved 60 pounds off the car. They weigh even less now since I've removed all the window regulator stuff and replaced the glass with permanently attached Lexan.

Some day I may just replace them with fiberglass doors. Since it's race only, it's not that big of a deal. I already have no door or window seals in the car. It leaks if I get caught out in the rain while at the track.
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