Quote:
Originally Posted by WingsofWar
This is how id loose weight without to much sacrifice in-cabin comfort
Interior :
- FIA approved recliner racing bucket seats, not because they are light weight, but because i really like the design and materials used over many factory seats has to offer. - $1600 (new) $700-$1000 (used) ~ 40-60lbs
- sparetire/jack/tireiron/ removed - $0 ~ 15-20lbs
- Removing factory sound system and running a simpler system with less wires. $400-$800 ~ 10-15lbs
- Factory steering wheel and front airbags removed, replaced by Nardi steering wheel and quick release by WORKSBELL ~ $150-250 ~ 15lbs
Suspension:
- Light weight wheels, and a low profile tire filled with nitrogen. $1700-$1900 ~ 40lbs
- Control arms resurfaced and drilled. $0 ~ 4lbs
- Cross Drilled / Slotted Rotors for weight savings over blanks than seaching for greater braking performance $250-$300 ~ 5lbs
- Larger+Lighter brake caliper (wilwood would be my first aftermarket search if factory brakes do not satisfy) $1200 ~ 15lbs
- Coilovers (may or may not be save weight) $1200-$1600 ~ 20lbs
Chassis:
- Front and Rear Bumper supports removed. $0 ~ 20lbs
- I would remove the factory sound deadning (most manufacturers use a hardened tar that range anywhere from 40lbs-120lbs depending on the car) and replaced with a liquid base sound deadener, that virtually weighs 1/3 of tar and mat deadners. $250 ~ 30lbs
- Removing Heat shields in the underbody. $0 ~
- Removing Metal in non-flexing joints and locations of the chassis. IE tailgate, wheel well, doors, roof. $0 ~ $20-80
- Carbonfiber hood - $600 ~ 15lbs
- Carbonfiber Trunk - $400 ~ 10lbs
- Drop aluminum gas tank to be replaced with, 8 Gallon Fuel Cell + Aeromotive fuel pump + hardware. $600 ~ 40lbs
Power and Drivetrain:
- Lightweight flywheel - $200 ~ 10lbs
- CNC Lightweight Pullies (crank,alternator,tensioners,AC)- $150-300 ~ 3lbs
- Aluminum driveshaft if a steel shaft from the factory is used. Carbon maybe, but not really interested.
- Full Titanium header back exhaust. $2400 ~ 60lbs
- Odyssey lightweight battery $180 ~ 15lbs
id expect a realistic drop of 250-300lbs with all this...but optimistically 500lbs. I'm really having a hard time gauging a weight loss on the FR-S especially when its target curb weight is competitive with the current Miata at 2400lbs. Id expect to spend anywhere from $4000-$8000 for good weight savings at that level.
+ added weight
+ SCCA approved 10pt roll cage
+ Front 4pt engine brace
+ rear strut tower bar
+ Larger 3way adjustable front and rear anti-roll bar
+ Chassis Brace
+ Transmission Brace
+ Aluminum Transmission Oil cooler
+ Aluminum Radiator
+ Aluminum Oil Cooler
+ AN fitted SS oil cooling lines
+ Stiffer Tranmission and Engine Mounts
+ Aluminum Subframe bushings
+ Stage 2 twin disk Clutch w HD pressure plate
+ Carbon rear diffuser
+ Aluminum Front under tray/splitter
~speculated major weight add ons
Widebody Aero (see sig pic)
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This sounds even more hard-core than the latest 911 GT3 RS 4.0 (and is).
But very right. I am going to remove from the FT-86 everything that I do not need and lighten everything I need. I'll only leave the stereo as lightweight configuration seen in some high-end sportscars (McLaren F1). Air conditioner is going to go, air bags also. I mean, there are so many old cars driving around that don't have them, also I had one, and I did not feel missing them. I'll try to build the FT-86 as closest to a bike. A bike has no a/c, stereo, air bags, sound insulation, cup holders, cigarret cinder and so. So should be a fun car.