kuna enamus ei saa lugeda 6speedonline foorumit, siis teen ühe pikema copy-paste siia...jutt küll põhiliselt 996tt kohta, kuid mitmed asjad ühtivad ning relative poweri tabel on ka ehk huvi pakkuv
Want to trim some weight off of your turbo? You arent alone. This thread is for detailed inputs on weight reduction for the 996 Twin Turbo. Please no guesstimates or they wont be added to the list.
WHY IS WEIGHT LOSS IMPORTANT?!?!?!?!?!?!
Ive been wondering how weight loss translates in terms of hp so I did some rough calculations that might be interesting to you all. If you assume a 3500 lb car with 500 hp, each 100 lbs of weight loss translates to this amount of power. Math experts please correct me if im wrong.
Weight....actual HP.........lbs/hp.............relative power
3500.......500.................7.0................ .500
3400.......500.................6.8................ .514.7
3300.......500.................6.6................ .530.3
3200.......500.................6.4................ .546.9
3100.......500.................6.2................ .564.5
3000.......500.................6.0................ .583.3
So a 300lb weight loss is the equivalent of adding 47 hp if my calculations are correct. Interesting to note that going from 3500 to 3400 is only equivalent to 14.7 hp and going from 3100 to 3000 is equivalent to gaining 18.8 hp. It would be interesting to make tables like this for cars with 600hp and 700 hp and so on. (rwm514)
Requirements for being included in the weight loss thread. #1 Replacement Part #2 Brand of said part i.e. GT3 Recaro seats, GTR Brembo BBK #3 Actual weight difference between both parts, weight lost by installing new part or the weight of the new part itself.
This method will allow us to eliminate some of the guess work for those of us trying to trim some weight.
More discussion on the topic of weight reduction for the 996 TT here
http://www.6speedonline.com/forums/s...ad.php?t=70932
Battery: Stock - 52 lbs
Odyssey PC680 14.99 lbs (Sallymobile)
Odyssey PC925 26.0 lbs (Sallymobile)
Odyssey PC1200 38.2 lbs (Sallymobile)
Optima Red Top battery = 39.4lbs (jimmer23)
Spare Tire and Tools Removal:
- 39.2 lbs (Al Norton)
Wiper Delete:
-3.8 lbs (Al Norton)
RWD Conversion:
Differential, drive shaft, both axles - 68-71 lbs (rwm524 )
Front differential 52.0 lbs. Driveshaft 6 lbs, 10 oz. Half shafts 12 lbs. 2 oz. the pair. Total for removing these items -71.0 lbs. (Al Norton)
Brakes:
Brembo 14" kit w/ 6-piston caliper (fronts only)
OEM caliper weighs 10.1lbs vs. Brembo caliper weighs 7.8lbs
OEM disc weighs 23.4lbs vs. Brembo disc weighs 16.9lbs - 17.6 lbs total
Rotora 355 mm rotors with 6 piston fronts and 4 pistons rears... rotors 17LBS, 6 piston calipers 7 lbs., 4 piston rears 6 lbs
-19 lbs lost in front
- lbs lost in rear (MARKSKI)
Seats:
Rear Seat Removal - 22.1 lbs (Al Norton)
GT3 Seats - 58 lbs (Al Norton)
Clutch/Flywheel Items:
-Stock clutch/pressure plate/disc/flywheel - 46 lbs (Al Norton)
-Clutch Actuator - 7 lbs (cjv)
-LWFW and Sachs Pressure PLate - 19 lbs (rwm 514)
Exhaust Items:
996 Twin Turbo Sports Imported Racing Catalytic Converters with Muffler Bypass Pipes -50lbs (f1crazydriver)
Tubi Style exhaust(first gen) : 35.2lbs Stock Exhaust : 57.6lbs net loss 22.4lbs (TXGold)
Other Interior:
Subwoofer Removal - 12.2 lbs (Al Norton)
Body Parts:
-Bumper Supports -Front bumper support and all hardware 14.2
Rear bumper support, rear heatshield, and all hardware 21.4 (TXGold)
-Roof
-GT2 Roof Skin
-Doors
-Hood
-Stock hood 40lbs. Carbon Fiber Hood 16lbs. (luckyluke)
-Custom carbon hood 5lbs. 35lb savings. (lucky luke)
-Spoiler/Deck Lid & Carbon Fiber Roof - 35 lbs (luckyluke)
-Techart Wing, removal of wing motor mechanism - 30-35 lbs (DMK)
-Carbon /Kevlar Bumpers
-Rear Bumperrettes - 2 lbs 7 oz for the pair (Al Norton)
Wheels: (hollows listed twice)
Factory 996 Turbo Hollows
8x18" at 22 lbs 2oz
11x18" at 26 lbs 5 oz
Factory 996 Turbo Solids
8x18" at 26 lbs 2 oz
11x18" at 31 lbs 6 oz
Factory GT2 wheels uses Turbo solids in wider spec:
8.5x18" at 28lbs 11 oz
12x18" at 33 lbs 0 oz
Factory GT3 wheels
8x18" 22 lbs 10 oz.
11x18" 27 lbs. 11 oz.
Factory GT2 wheels (later years, GT3 style)
8.5x18" 25 lbs. 2 oz.
12x18" 29 lbs.
Turbo II Hollow Spoke (BBS)
18x8 offset 50 996.362.136.04 21.27 lbs
18x11 offset 45 996.362.142.03 26.23 lbs
18x11 offset 45 996.362.142.11 26.23 lbs
Turbo I Hollow Spoke
18x7.5 offset 993.362.134.05 18.96 lbs
18x8 offset 993.362.136.00 19.62 lbs
18x10 offset 993.362.140.00 25.13 lbs
18x10 offset 993.362.140.01 23.37 lbs
18x10 offset 993.362.140.01A 23.94 lbs
Turbo Look II (BBS)
18x8 offset 50 996.362.136.01 26.23 lbs
18x11 offset 45 996.362.142.01 31.96 lbs
18x12 offset 45 996.362.142.31 32.4 lbs
AFTERMARKET WHEELS
-BBS E88 race wheels
18x9 18.8lbs
18x12 19.4lbs
-BBS RS-GT
18x8 20.6 lbs
18x11 24.5 lbs
-19" Dymags for 997S
16 lbs., 0 oz. front
19 lbs., 0 oz. rear
-Fiske Profil 13:
8.5X18 = 21 lbs.
12X18 = 22.5 lbs
Tires:
Pirelli P Zero Nero Stock sizes front 23.14 lbs rear 27.11 lbs
Nitto NT-01 245/40ZR18 is 25.35 lbs. 315/30ZR18 is 29.98 lbs (AL Norton)
Continental Sport Contact 2 Stock Sizes front 23.14 lbs rear 25.35 lbs
Toyo Proxes R888
225/40 18 22.7 lbs
235/40 18 24.69 lbs
265/35 18 26.23 lbs
Yokohama Advan A048
225/40 18 22.92 lbs
Kumho Ecsta V70 A
225/40 18 22.92 lbs
Lightest Turbo List:
Stock- 3475 lbs (including default gas weight of 20lbs at 1/4 tank)