So I weighed my FB tonight... - Page 3

P71 · 11-22-2008, 08:32 PM

In the middle of a *ahem* "sporting drive" I happened upon an easy way to hit the truckstop on I-5 by my house, so I figured what the hell. Stock 1983 RX-7 GSL with power windows/mirrors, cruise, A/C, glass sunroof, and full emissions intact with a full tank of fuel (minus about a gallon from the station to the scale) and the spare, jack, etc still inside.

2,650 Lbs.

Considering I weigh about 235 at the moment that's not bad! So 2,415 for an all-stock, fully-loaded FB, with a full tank. Figure I run it at about 1/3 tank in the autocross, plus no roof/spare/jack/spare oil/etc. Gas weighs 6.15Lbs/gallon, so take out 60Lbs of gas, and maybe 25Lbs for the roof/spare/etc and it's maybe 2,565Lbs when I autocross.

I'll re-weigh it as I take stuff out (A/C, emissions, exhaust, interior stuffs). I'd like to get it around 215Lbs out to bring it to 2,200 without me and under 2,500 with me. So figure the A/C stuff weighs quite a bit, same with the smog pump and the factory exhaust manifold. Also relocating the battery and replacing it with a lighter one, also going to a lighter interior insulation and seats. Should be doable, right?

11-22-2008, 08:32 PM	#1
P71 RCC Contributor Join Date: Feb 2008 Location: WA State Posts: 651 Rep Power: 18	So I weighed my FB tonight... In the middle of a ahem "sporting drive" I happened upon an easy way to hit the truckstop on I-5 by my house, so I figured what the hell. Stock 1983 RX-7 GSL with power windows/mirrors, cruise, A/C, glass sunroof, and full emissions intact with a full tank of fuel (minus about a gallon from the station to the scale) and the spare, jack, etc still inside. 2,650 Lbs. Considering I weigh about 235 at the moment that's not bad! So 2,415 for an all-stock, fully-loaded FB, with a full tank. Figure I run it at about 1/3 tank in the autocross, plus no roof/spare/jack/spare oil/etc. Gas weighs 6.15Lbs/gallon, so take out 60Lbs of gas, and maybe 25Lbs for the roof/spare/etc and it's maybe 2,565Lbs when I autocross. I'll re-weigh it as I take stuff out (A/C, emissions, exhaust, interior stuffs). I'd like to get it around 215Lbs out to bring it to 2,200 without me and under 2,500 with me. So figure the A/C stuff weighs quite a bit, same with the smog pump and the factory exhaust manifold. Also relocating the battery and replacing it with a lighter one, also going to a lighter interior insulation and seats. Should be doable, right? __________________ Michael Pinto 2008 PDXCGP Drag Racing Season Champion 83 RX-7 GSL; 12A/5-Speed, Red/Red; 100% Stock - 16.072@83.39 01 CV Police Interceptor; 4.6 SOHC V8/4R70W, Dk Blue/Grey; K&N FIPK/RP Oil/Optima/Superchips/Flowmaster 40's/2.5" cat-back - 14.854@92.37 Read my Rx-7 Build Thread! http://rotarycarclub.com/rotary_foru...ed=1#post70955 Get on the new RCC 1/4 Mile ET List! http://www.rotarycarclub.com/rotary_...read.php?t=368 Vote for the ROTM! http://rotarycarclub.com/rotary_foru...play.php?f=125