I did a search but really couldn't find much. What have people done to save / shave off weight on their 991 Turbos? Any aftermarket lighter battery etc.?

 

A lw battery is one way, but expensive for minimal gains on a 3500 lb street car
Prob best bet is a set of lw forged wheels. Seats next. If you have time, there is a thread in the 997 turbo section that gives a lot of ideas for shaving weight.

 

One of my friends tried a lithium battery in his RS7 and it started smoking a al Boeing 787. The smokey electrical fire almost destroyed his car. No way I would put one of those in my car. Never.

 

Holy crap. I would never do it on a street car either. Too much $ for nominal, if any, gain.
Crazy about your friend. Wonder if he maybe reversed the polarity without realizing.
LW wheels, seats, and maybe take a couple random things out. Save a hundred lbs. After that I say just add more powa!!!

 

Yes I could easily see someone replacing the seats with a set of the light weight bucket seats that are optional on the GT3. I would never do that as I am Too big for those.

 

I've been saying for almost 20 years.... there's something to be said about OE parts. Again, this is a street car. What are you really gaining by installing a LW battery.

 

I am also interested as I am picking up my 991.1 Turbo S next week.


Maybe since the thread was started a lot of things have been done to the Turbos and maybe someone already has done some weight savings

 

We've played with a lot of fun ideas and found pretty nice solutions in all departments. Feel free to call me anytime!

 

You are gaining the joy of having to always keep the battery on a tender. I put a Lith battery in my racing Miata, and it sucked because it would go dead so quickly. It has stock battery in it again.

Oh and one other great part of a lithium battery is that if it goes completely dead (quite likely on a car) it can cause the battery to no longer accept a charge. Sweet.

 

There's not much that can be done to shave weight that you'd notice. Even wheels don't make a huge difference since they are wrapped in the same heavy tires, or heavier considering so many want to plus up in aspect ratio and/or diameter. There's always the RS carbon fiber bonnet. Nothing is bang for the buck after the fact. Best bet is buy a car where the maker put it on a diet as part of the model. Hard to believe turbos weigh 600 pounds more than my car. I did not realize that.

 

I know a friend who almost burned up his RS7 from an exploding lithium battery. No thanks.

 

Lightweight exhaust, remove back seats

 

I posted something similar to yours on the older turbo forum and bottom line was it seemed to be a better use of your $ to increase HP over lowering weight. Just my two cents.

 

Here's the link to the 996TT weight loss thread. Could give some ideas for weight removal and ballpark figures for weights.

https://www.6speedonline.com/forums/...urbo-list.html

 

Keep in mind that weight is not just for acceleration (which it does help), but positively effects almost every other performance metric of your vehicle. Breaking, handling, sportier feel, wear & tear on parts, more fuel efficient (I know, but technically it should lol!!)...etc..

It makes the car just more agile in every "feel" and recordable metric. I had my 996T down to 3360lbs and the car just felt more like a sports car and just more enjoyable to drive period!

Battery is the best way and best bang for the buck ways of reducing weight. I had a 18lbs Braille battery that saved 37lbs for $200 without issue!

https://www.braillebattery.com/index...atteries/b2618

With E85 and more DD I would do the 21 lbs version in my 997:

https://www.braillebattery.com/index...atteries/b3121

This was 4yrs ago so with battery technology continually moving forward there is most likely even better options out there.

It seams that the newer the 911 the harder it is to lose weight. In the 996 I just got rid of my spare and tools and saved 40lbs. Not an option of the newer 911's as we don't have a spare. Go RWD in 996 can't do that in the newer 911's. Get rid of that iron hood that weights 40lbs in the 996 to a 13lbs carbon is a 27lbs savings, can't really lose that much going from our already light weight aluminum to carbon with the newer 911's. On the manuals 996-997 you can do a LWFW/clutch set up (stock to ERP triple)and drop 24lbs etc..

You lose a good bit from a light weight battery (30lbs), light weight after market exhaust (about 30lbs),LW forged wheels losing about 25-30lbs of rotating mass and seats saving another 60lbs = avg.150lbs (the wheels rotating mass is worth a lot more then indicated 25-30lbs savings)

The above set up is something you would feel all around for sure and measure. It would feel like a more lively & enjoyable car.