991 GT3 Weight savings and costs
01-23-2016, 06:08 AM
#31
Rennlist Member
My RS probably heaviest possible config with no light weight options, spray bottle full, books in the glov box, floor mats in, full leather, Nav, sound + and roll bar harnesses added @ 3250 + 250 driver + fuel.
I always pee before going out on track. #2 whenever possible.
I've done lightweight battery and side muffer delete on other cars, the only 2 cheap weight reductions.
100lb weight reduction is equivalent of .8 seconds at Sebring for me.
I always pee before going out on track. #2 whenever possible.
I've done lightweight battery and side muffer delete on other cars, the only 2 cheap weight reductions.
100lb weight reduction is equivalent of .8 seconds at Sebring for me.
01-23-2016, 07:25 AM
#33
Race Car
Thread Starter
Join Date: Jan 2013
Location: The way to hell is paved by good intentions “Wenn ich Purist höre...entsichere ich meinen Browning” "Myths are fuel for marketing (and nowadays for flippers too,,,)" time to time is not sufficient to be a saint, you must be also an Hero
Posts: 4,442
Received 421 Likes
on
249 Posts
110 Lbs most of them unsprung its a lot
in precision steering tyres suspensions brakes
worth more than the 1 or 2 seconds at one shot
in precision steering tyres suspensions brakes
worth more than the 1 or 2 seconds at one shot
01-23-2016, 08:36 AM
#35
Racer
Join Date: Jan 2015
Posts: 304
Likes: 0
Received 0 Likes
on
0 Posts
Losing that much weight from aftermarket brakes is optimistic. If you're trying to lose weight on a 3200 lbs car, depends how far you are willing to go. Once the obvious things are finished in terms of wheels, battery, then you turn to fact that Gt3s have an awful amount if luxuries. Stereo, carpets, etc. etc. grams start adding into pounds, but not worth it IMO unless you are racing and can extract full performance from the car. I get his point though. Most of us could stand to lose a few. Or More than a few. His "ideal" number does not work for though. For example if you are 170 lbs at 6' tall, even at a very lean 10% body fat, you aren't carrying that much muscle mass. I would have so little body fat at 170 lbs that it would be unhealthy (well into single digit %).
I have been lifting weights for many years and have a lot of muscle weight. I'm 6' 220. At 170 I'd look emaciated. I'm in best shape around 210 running 5 miles per day
01-23-2016, 10:32 AM
#36
Race Car
Thread Starter
Join Date: Jan 2013
Location: The way to hell is paved by good intentions “Wenn ich Purist höre...entsichere ich meinen Browning” "Myths are fuel for marketing (and nowadays for flippers too,,,)" time to time is not sufficient to be a saint, you must be also an Hero
Posts: 4,442
Received 421 Likes
on
249 Posts
1st step Goal 100 Lbs result = 110Lbs saving , est. Total cost $16k
380/380mm RB CCM Conversion for 991 GT3 w/C-L Hub w/Std brakes saving 48 Lbs Cost est $12.5k
Fabspeed Side mufflers bypass Total Weight saving 34 Lbs Cost est $1.5k
Lightweight battery Total weight saving 28Lbs est. cost $2k
2nd step Goal 200 Lbs
1Step
+
Carbon doors est cost $5k Total weight saving?
Polycarbonate rear screen and windows
A/C Delete
3rd step Goal 300 Lbs
Step1 + Step2
+
Magnesium 19"/18" wheels
Motorsport gearbox
380/380mm RB CCM Conversion for 991 GT3 w/C-L Hub w/Std brakes saving 48 Lbs Cost est $12.5k
Fabspeed Side mufflers bypass Total Weight saving 34 Lbs Cost est $1.5k
Lightweight battery Total weight saving 28Lbs est. cost $2k
2nd step Goal 200 Lbs
1Step
+
Carbon doors est cost $5k Total weight saving?
Polycarbonate rear screen and windows
A/C Delete
3rd step Goal 300 Lbs
Step1 + Step2
+
Magnesium 19"/18" wheels
Motorsport gearbox
Last edited by fxz; 01-23-2016 at 11:07 AM.
01-23-2016, 02:22 PM
#37
There are easily accessible BMI calculators on the web (just google, bing, etc.).
Athletes with above average muscle mass will tend to exceed the highest recommended BMI for optimal health (i.e. somewhat above 25.0).
Unfortunately, approximately 2/3rds of us Americans are either "overweight" (BMI 25.1-30.0) or "obese" (BMI >30.0).
A 6'0" 170lb male has BMI=23.1
At 6'0" and 210lb your BMI is 28.5 ... if you're "athletic" and can run a 36-38 minute 5-miler you're aerobically fit, but could reduce long term joint degradation if you bring yourself down to 190lbs or less ...
However, we all have a certain "set-point" weight at which we feel comfortable ... life needs to be enjoyed and each of us needs to determine what body weight keeps us happy.
01-27-2016, 06:02 PM
#38
Race Car
Thread Starter
Join Date: Jan 2013
Location: The way to hell is paved by good intentions “Wenn ich Purist höre...entsichere ich meinen Browning” "Myths are fuel for marketing (and nowadays for flippers too,,,)" time to time is not sufficient to be a saint, you must be also an Hero
Posts: 4,442
Received 421 Likes
on
249 Posts
1st step Goal >100 Lbs
Result = 110Lbs saving
Est. Total cost $16k
380/380mm RB CCM Conversion for 991 GT3 w/C-L Hub w/Std brakes saving 48 Lbs Cost est $12.5k
Fabspeed Side mufflers bypass Total Weight saving 34 Lbs Cost est $1.5k
Lightweight battery Total weight saving 28Lbs est. cost $2k
2nd step Goal >200 Lbs*
1Step
+
Carbon doors est cost $5k Total weight saving?
+
Polycarbonate rear screen and windows
+
A/C Delete
3rd step Goal >300 Lbs*
Step1 + Step2
+
Magnesium 19"/18" wheels
+
Stripped paint
+
Navi and Sound amplifier delete
+
tbc Motorsport gearbox?