It would be pretty pointless to convert any exterior panels on our cars to carbon fiber unless for looks alone.

Getting a cat back exhuast will drop weight by atleast 20-30 pound easy.


Stock cats weigh prob like 8 pounds each-swap those out for some test pipes will prob save around 8 pounds.

Smaller tires/rims will save a bundle of weight too.


Drive around with a max of 1/2 a tank of gas will help too.

 

i think the spare tire, after market exhaust, and lighter wheels are the only things i would do. i have a full sized spare too... but i got a sedan for the room... i say get a coupe or another car if you want a lighter car.

 

The coupe is heavier than the sedan.

 

Crank pulley replacement and idler pulley removal will save you weight on the engine.

 

Overall I have added a decent amount of weight to my car between all the aftermarket mods (go fast and stereo) but since I have 600+hp it makes up for it.

 

proper attitude! just add more horsepower make up for our weight.

 

*CF doors-oem doors weigh aprox 94lbs/door..new cf doors from seibon only 16lbs/door
*seibon CF fenders-not big difference due to the fact our oem fenders are aluminum..maybe took off a pound or two
*seibon cf hood- about 5lbs lighter
*seibon trunk lid- about 5lbs lighter
*spare tire removed
*front aluminum base removed-25lbs
*rear aluminum brace removed-20lbs
the oem seats in the g35's weight close to 90-100lbs with the all the gizmos gadgets..(heated,power) seibon makes CF seats weighing only 12lbs..but they dont look confortable..and they cost about 1200.00

 

My that's a spendy option...

 

Not following you here..how much does a pulley actually weigh?

 

VERY TRUE! (ironic, but true)....

Light = Lotus Exige, not another G

 

^ +1. if you're looking for a lightweight speedster, the G sedan is the wrong car to start with. it's a luxury-oriented sport sedan so more emphasis was placed on the overall package than creating a feather weight vehicle.

actually, the G sedan is not at all "heavy" when compared to many other sport sedans (i.e. most German sedans - Audi, Merc as well as Cadillac) so all things considered we are not able to easily cut weight. nor is the G designed to...

 

There are some things many have pointed out that can shed weight without compromising reliability, luxury, or driveability.

1) Removal spare. ~27lbs. Travel with small air compressor and temporary tire repair kit.

2) Lighter wheels. The OEM 17s weigh around 26lbs each. You can get relatively cheap aftermarket rims that weigh 15-17lbs. That's a solid 40lb loss. More importantly, the car will brake better and accelerate harder because of the reduced rotational weight (the worst weight you can add).

3) Lighter tires. Tires of the same size can vary in weight quite dramatically. You could be looking at a total weight savings of 15lbs and the same performance benefits apply as with the lighter wheels.

4) Lightweight battery (*only useful for warm climates). The OEM battery is around 45lbs and designed to start in cold climates. Lightweight race batteries weigh around 10lbs.

5) Remove all weather floor mats. An entire set weighs in at 17lbs.

6) Remove trunk mats. -5lbs.

7) Run a minimal amount of windshield wiper fluid. -12lbs+

8) Coupe or 05/06 sedan midpipe. -18lbs to -25lbs

Overall, you can extract about 175lbs of weight from the car rather easily with any major luxury or noise compromises. The car will feel far more responsive, especially since you've removed 85lbs from the front axle/nose. That will equate to around a .25 to .3 second and 1.5 to 2mph gain in the 1/4 mile.

 

wow thanks for the info DAVEB. all of the things u mentioned are things anyone can do. Most of the things on there arent really compromising any luxury. Might have to try every single one. thanks again.

 

i have a couple a questions. Do you think i should buy lightweight batteries if im located in SOCAL. its pretty warm during the year, but gets a bit cold once in a while. How can i take out the windshield wiper fluid?

 

Just run the battery in the spring, summer, and fall and put the OEM battery in during the winter. As for the fluid, siphon it out.