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What makes our cars so dang heavy???

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Old Oct 14, 2007 | 04:10 PM
  #1  
online170's Avatar
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Joined: Sep 2005
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From: Ottawa, ONT
Car: 1987 Firebird
Engine: 355
Transmission: T56
What makes our cars so dang heavy???

Tried posting in the FAQ but couldnt. This is the next best thing.

I love a car with the "clean", "factory" look, so id rather own one that looks factory or subtle customizations, rather than an all out visually focused car. With this in mind, im gonna be doing a bit of weight reduction over the winter.

When i find the link to the thread about factory weight loss items ill post it here. Included stuff like driveshafts, and front bumper. Here it is...

https://www.thirdgen.org/forums/body...on#post2181863

Anyways, What makes these things so dang heavy?!?!?!

They were sold and were known as the cheaply built, cheaply sold, real fast cars of the day. So obviously they saved tons of $$$ on production costs by simply using less to produce.

These cars dont have full frame, simple rear ends, minimal metal used everywhere. The seats are super light. Not overly iinsulated. The fenders and quarters dont weigh alot. The heaviest part of the car is probably the doors, but you need those for rigidity of the entire vehicle. etc etc etc....

So why is it so much heavier than, (please dont kill me), a fox mustang?


Ofcourse, a follow up question is, what can be removed (and replaced if necessary) without major hacking to make it lighter?

Last edited by online170; Oct 15, 2007 at 08:08 AM.
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Old Oct 14, 2007 | 04:28 PM
  #2  
Jay_rich's Avatar
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Joined: Apr 2006
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From: Windsor Ontario
Car: 1987 Z28
Engine: 2005 5.3L, LS6 Cam
Transmission: T56
Axle/Gears: DTS 9" 3.50 TrueTrac
Re: What makes our cars so dang heavy???

well there is alot of glass...the hatch prob weighs alot!..for some reason just like any older GM the doors are soo freakin heavy...nothing is glass like the newer ones. Cast iron blocks and heads etc.

Mine with the LT1 Swap in full street trim is 3250 NO driver

Jay
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Old Oct 14, 2007 | 11:30 PM
  #3  
Anti-Venom's Avatar
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From: Springfield, IL
Car: '89 Formula WS6
Engine: L98
Transmission: 700r4/T56
Axle/Gears: BW 3.23
Re: What makes our cars so dang heavy???

Take loose the hatch supports and try to open the hatch w/o them. You would be amazed how much that piece of glass weighs. Lexan will be on your shopping list. Doors are not so bad comparably.
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Old Oct 15, 2007 | 08:01 AM
  #4  
online170's Avatar
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Joined: Sep 2005
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From: Ottawa, ONT
Car: 1987 Firebird
Engine: 355
Transmission: T56
Re: What makes our cars so dang heavy???

Originally Posted by Anti-Venom
Take loose the hatch supports and try to open the hatch w/o them. You would be amazed how much that piece of glass weighs. Lexan will be on your shopping list. Doors are not so bad comparably.
THAT LINK HAS BEEN POSTED TO A PREVIOUS THREAD. Very informative. The hatch is only 91lbs + maybe 30 depending on spoiler.



Yea ive been doin that for a while now. Oneof the mounting tabs had bent so i took off both. I hated opening the thing. I got the "lift with your legs" down pat cuz of it...

However, would it make that much of a difference to remove that peice? Probably weighs a bit less than a driver. Because of the nose heaviness of the F-body, i was focussing more on the front of the car.

Ive driven a 5spd fox mustang once, with a cam and a cold air intake, and the thing was scary fast. Prolly 12sec in the quarter.

If you look around the F-body, they havent done it much differently. Like light seats, not an incredibly bulky dash, etc... Obviously it was thought out. But the end result is a heavy car. It just "feels" heavy too when driving.

Btw, where do i find lexan? Do they make an entire hatch?

Last edited by online170; Oct 15, 2007 at 08:09 AM.
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Old Oct 15, 2007 | 08:13 AM
  #5  
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Re: What makes our cars so dang heavy???

someone just posted a link for a complete lexan f-body kit in the quest for 2800 lbs weight reduction thread. Summit racing has all 4 lexan pieces for under 500, if i remember right.
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