popscomet wrote:how much you think this comet is gonna weigh???...just wondering just how much extra weight you;ve added by using what ever thickness of metal you can come up for free or almost free ????
Probably anything is heavier than rusted out thin metal. The stuff I am using in the trunk is around 18 gauge, I don't know what it was originally maybe 20 (18 is 2 lbs. sq. ft.- 20 is 1.5 lbs. sq. ft.), everything else I have changed or added were the floorboards, which were stamped replacement panels, the front core support I cut out of the parts car, the front inner fender panels that replaced the shock towers are 13 gauge and the rusted out torque boxes will probably get the same 13 gauge to replace the spots on them.
I can't say for sure what weight differences there will be with the air ride (replacing steel springs with air bags), MII as opposed to stock suspension components (steering box etc) and the 4-link rear instead of leaf springs, I did add some 3/8" steel boxing to the frame in front and plated the rear frame with piece of 3/8" as well on the inside edge. I am sure the 8.8" is heavier than the 8" rear, going to guess the aluminum driveshaft is a wash as far as weight and the T-5 is probably lighter than the cast iron top loader 3-speed, the wheels are lighter I would imagine but probably not a lot.
Just guessing on a lot of stuff, I know some will add weight and some will take away, there are so many variables of stuff being added and taken away like there is no longer the 3 speed column shifter parts on there, no back seat etc. even the hydraulic clutch system is probably a tad lighter than the z-bar system. Then stuff like the 250 weighs more than the 170, I guess I really did not sit down and engineer it all out to be super lite and because it is going to be a road car it is going to get stuff like A/C, insulation. I hope putting the 5 speed in and a higher rear gear (than it had) bigger back tires etc will all help with fuel economy (relative speaking).
I guess there are certain things I could do without but I am adding anyway that add to weight like a rear firewall but will be more comfortable with them in place (I have some old metal duct work I will probably use for the firewall, not sure what it is maybe 26-28 gauge, doesn't need to be structural like the trunk floor just block fire).
And if I did not make it clear, I am removing all the old sheet metal in trunk (and everywhere else) and replacing it.
I guess I can try and weigh the car when I am done and see what I have.
See Ya,
Mike