What are the weights of the 1st gen chassis?



Assuming everything non-essantial is removed, which year/model chassis will be the lightest?

81-85. 79-80 adds weight with the bumpers and the 5mph bracing.



off the showroom floor a 79-80 gs with ac and stuff is like 2450lbs

an 81-85 gs is like 2350lbs

a gsl-se is 2550ish

^^I agree



I have seen 79-80's that are just under 2000. I think that they had tons of stuff done though. Ie fiberglass hood fenders etc.

I'm looking at doing that stuff, once i have the time (the fiberglas hood & fenders, that is). Anyone have any ideas or anything on how to make the molds?



Would a carbon fiber hood be lighter than fiberglas, or no?

the 79 imsa cars were 2020lbs. i think in 80 they had to run at 2250, because they were too fast. then 2450, then 2250 with a bridgy....

is that why the speedo in my '80 only goes up to 80? i'm working on doing other stuff, too, including converting to propane. I wonder if i'll be the only owner of a 1st gen RX-7 in the US that's converted one to Propane. its turning out to be a pain in the ass, but i'm up to the challenge.

the 85mph speedo was legislated by the us govt, i guess its to keep you from speeding or something? or somehow having a 120mph speedo was unsafe https://www.nopistons.com/forums/pub...IR#>/blink.png

eh. i'm going to be re-doing all my gauges anyways. i have a lot of plans for that car.

2000#s excellent https://www.nopistons.com/forums/pub...O_DIR#>/v2.gif

Yeah, we are talking everything though. I mean these cars would have sucked to drive on the street. Lightweight uncomfortable seats, no interior, no door panels...nothing...I will live with my extra few hundred pound for the added "luxury".



On a side note I think that it is so funny when people take out their passanger's seat so that they can save a few pounds. Come on now...



What are you building?