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More on Weight...The Facts!
Topic Started: Aug 21 2010, 07:04 AM (664 Views)
black83zee
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Media Specialist
Some facts on weight :

Gas weighs 6.2 lbs. per gallon! A full tank for us is 93 lbs.!
4th gen leather seat....44lbs.
glass t-top....16lbs.
Lexan t-top.....9 lbs.
2" aluminum spacer+additional lug nuts.....5 lbs.

Posted Image


More to come as I remove and weigh stuff.
interesting facts. Amen!
Edited by black83zee, Aug 21 2010, 08:13 AM.
Posted Image
350, carb, headers, side exhaust, T-5, aluminum ds, Baer discs, Bilsteins, tubular a-arms,
tubular torque arm, adjustable track bar and control arms.



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gp90gta
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The Professor
Rotating inertia is worth a lot more then that if I remember correctly 1lbs is worth almost 20hp
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1990 GTA, 350, AFR195's, TPIS Miniram, Dyno Don headers, Custom bumpstick by Bullet cams, 36lbs injectors, Spohn SFC's, Custom tune by me.
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black83zee
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George, that's why an aluminum drive shaft and a lighter flywheel are important. Also why I noticed the car drove better with the 16" rims vs. the 17" rims with 5 lb. spacers! I'm also sure as you put in larger rotors there will be a point where the inertia will limit the braking improvements...in that case 2 piece rotors and carbon discs help a lot $$$!
Edited by black83zee, Aug 21 2010, 08:01 AM.
Posted Image
350, carb, headers, side exhaust, T-5, aluminum ds, Baer discs, Bilsteins, tubular a-arms,
tubular torque arm, adjustable track bar and control arms.



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gp90gta
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The Professor
Does anyone know how much those carbonfiber ones way, alot of auto-x guys use them are they really that much lighter then the aluminum ones? As far as inertia and braking I think it has to do more with friction then mass, the more friction the better faster you turn kinetic energy to thermal energy hence faster stopping
The technical term is how much retardation can be achieved
Edited by gp90gta, Aug 21 2010, 08:59 AM.
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1990 GTA, 350, AFR195's, TPIS Miniram, Dyno Don headers, Custom bumpstick by Bullet cams, 36lbs injectors, Spohn SFC's, Custom tune by me.
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ZZ383GTA
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ZZ383GTA
just buy a 100 pack of sawzall blades and start cutting.. thatll save some weight lol. otherwise add more horse power.. i have one thing on that list and thats the gas.. otherwise im good lol.. and alot of racers use 17" wheels and bigger for the most part. especially nowadays all cars come with 17" and bigger from the facotry.
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1320B4U
"Miley Cyrus Club Pres"
Car and driver did an experiment years ago...they took a basic xe sentra and ran quarter mile times each time after they removed weight...started w/full interior, then removed the roof, doors, glass, etc...by the end all they had was the unibody and motor, 14" tires in front and donuts in the back..absolutely nothing in the car w/the exception of drivetrain components...i think the car ran in the 14's when it was done from a stock time of 16sec's plus..really intriguing article on weight. Another thing people should look at is the weight of themselves....you don't see 250lb horse jockeys do you?
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1991 R/S..1992 L98 Firehawk Tribute (sold)..1999 c5/t56 (sold)..2012 z-71
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black83zee
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Then Danica Patrick should be winning! Do they make her carry extra weight?
I actually thought about carbon drive shafts.....but then I saw a photo of one that just shattered....well, I didn't need that!
Can someone weigh a 16" rim and tire and post it here? Then we need the same for the 17".
Edited by black83zee, Aug 21 2010, 12:01 PM.
Posted Image
350, carb, headers, side exhaust, T-5, aluminum ds, Baer discs, Bilsteins, tubular a-arms,
tubular torque arm, adjustable track bar and control arms.



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firechicken269
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89 Formula 350
is there a sticky on this? there should be. keep on this stan!
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1989 Formula 350, 5.7 TPI, T-5, WS6 suspension, 3:23 posi rear, disc brakes, T-Tops, Holley 52mm TB, Ported Upper Plenum, SLP Siamese Runners, 24# Injectors, G92 Exhaust option, Custom Chip(By gp90gta). car definitely wouldnt be what it is today without alot of help from all my friends here... thanks guys
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19transam86
Like a G6
black83zee
Aug 21 2010, 11:36 AM
Then Danica Patrick should be winning! Do they make her carry extra weight?
I actually thought about carbon drive shafts.....but then I saw a photo of one that just shattered....well, I didn't need that!
Can someone weigh a 16" rim and tire and post it here? Then we need the same for the 17".
i will weigh my 16's tomorrow, the 17's don't com off until next weekend when i do my rotors!
Posted Image
1986 Pontiac Trans Am, 305, 5-spd, 17" ZO6 Wheels
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firechicken269
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89 Formula 350
19transam86
Aug 21 2010, 10:03 PM
black83zee
Aug 21 2010, 11:36 AM
Then Danica Patrick should be winning! Do they make her carry extra weight?
I actually thought about carbon drive shafts.....but then I saw a photo of one that just shattered....well, I didn't need that!
Can someone weigh a 16" rim and tire and post it here? Then we need the same for the 17".
i will weigh my 16's tomorrow, the 17's don't com off until next weekend when i do my rotors!
is this with or without the tire?
Posted Image
1989 Formula 350, 5.7 TPI, T-5, WS6 suspension, 3:23 posi rear, disc brakes, T-Tops, Holley 52mm TB, Ported Upper Plenum, SLP Siamese Runners, 24# Injectors, G92 Exhaust option, Custom Chip(By gp90gta). car definitely wouldnt be what it is today without alot of help from all my friends here... thanks guys
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black83zee
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Media Specialist
That's with the tire. Everything bigger weighs more.....That's logical.I'd like to know just how much more. Those old 15" mags were actually very light wheels. Transam racers all used them back in the day.
Posted Image
350, carb, headers, side exhaust, T-5, aluminum ds, Baer discs, Bilsteins, tubular a-arms,
tubular torque arm, adjustable track bar and control arms.



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black83zee
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Media Specialist
Found more numbers on TGO..:

1 AFR head complete....33lbs.
1 Iron head complete....48lbs.
1 peice rear seat with seat bottoms 27 lbs
Front bumper support = 37lbs
Air bag sensors combined (3 pcs) = 2lbs
Nose = 16lbs
36mm sway bar with brackets/bushings = 15lbs
AC compressor = 15lbs
AIR pump = 7lbs
AIR diverter valve + lines = 4lbs
Stock LCAs = 10lbs/pair
Pro-fab tubular poly/poly LCAs = 8lbs/pair
Stock torque arm = 10lbs
BMR Adj torque arm = 16lbs
Formula wheel with bald 225/50/16 tire = 40lbs
Formula wheel with 245/50/16 tire = 50lbs
GTA wheel with 245/50/16 tire = 44lbs
15" x 9" Draglite XP = 22lbs
15x9 Draglite XP with 275/50/15 Hoosier Quicktime = 41lbs
15x3.5 Draglite with 165r15 = 25lbs
Stock starter = 20lbs
mini-starter = 9lbs.
Turbobuicks.com ministarter = 9lbs
PHB brace = 5lbs
donut + jack...33lbs.
Stock AC Delco battery...36lbs.
Steel Hood.....68lbs.
Fiberglass Hood....45lbs.
Edited by black83zee, Aug 22 2010, 10:14 AM.
Posted Image
350, carb, headers, side exhaust, T-5, aluminum ds, Baer discs, Bilsteins, tubular a-arms,
tubular torque arm, adjustable track bar and control arms.



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firechicken269
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89 Formula 350
stan, please tell me you arent breaking down your car to do this...lol

nm, just read the found on tgo part :fail:
Edited by firechicken269, Aug 22 2010, 08:48 AM.
Posted Image
1989 Formula 350, 5.7 TPI, T-5, WS6 suspension, 3:23 posi rear, disc brakes, T-Tops, Holley 52mm TB, Ported Upper Plenum, SLP Siamese Runners, 24# Injectors, G92 Exhaust option, Custom Chip(By gp90gta). car definitely wouldnt be what it is today without alot of help from all my friends here... thanks guys
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black83zee
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Rainy day so I got time on my hands!....Info on aluminum driveshafts and Hp gain.

http://www.ws6.com/mod-1.htm
Posted Image
350, carb, headers, side exhaust, T-5, aluminum ds, Baer discs, Bilsteins, tubular a-arms,
tubular torque arm, adjustable track bar and control arms.



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Robb Knight
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El Bandolero
Wow. Thanks for the read. Eventually I would like to take some weight off of my car down the road when I no longer use it as my daily. Right now I have to drive it through rain and snow, so weight is my friend. Especially in the rear. Great stuff though. I will definately look back at this when the times comes. I will probally take out what isnt noticeable. Like I wont be taking out seats and stuff. Want to keep the car looking complete. Cool to know I shed 6lbs when going from the Formi wheels to the GTA's.
Posted Image

1989 Firebird Formula 5.7 350 T-Tops WS6
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firechicken269
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89 Formula 350
damn, kinda cool. i was a week away from getting one for my red car =/
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1989 Formula 350, 5.7 TPI, T-5, WS6 suspension, 3:23 posi rear, disc brakes, T-Tops, Holley 52mm TB, Ported Upper Plenum, SLP Siamese Runners, 24# Injectors, G92 Exhaust option, Custom Chip(By gp90gta). car definitely wouldnt be what it is today without alot of help from all my friends here... thanks guys
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Robb Knight
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El Bandolero
Are the GTA wheels 44lbs each or altogether?
Posted Image

1989 Firebird Formula 5.7 350 T-Tops WS6
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firechicken269
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89 Formula 350
each wheel is individual. no way a rim would weigh 11pounds with a tire lol
Posted Image
1989 Formula 350, 5.7 TPI, T-5, WS6 suspension, 3:23 posi rear, disc brakes, T-Tops, Holley 52mm TB, Ported Upper Plenum, SLP Siamese Runners, 24# Injectors, G92 Exhaust option, Custom Chip(By gp90gta). car definitely wouldnt be what it is today without alot of help from all my friends here... thanks guys
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Robb Knight
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El Bandolero
Thats what I figured. I was like "dam, I dont remember them being so lite". Im a big strong guy, but I know they had to be more than 44lbs altogether. So is that the weight with the tires mounted? Its weird I googled the weight of them and I cant find a unanymouns weight. A bunch of different weights. I'll just weigh them next time I have them off.
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1989 Firebird Formula 5.7 350 T-Tops WS6
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firechicken269
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89 Formula 350
they probably differ by the tire. other tires prob weigh more, idk :idk:
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1989 Formula 350, 5.7 TPI, T-5, WS6 suspension, 3:23 posi rear, disc brakes, T-Tops, Holley 52mm TB, Ported Upper Plenum, SLP Siamese Runners, 24# Injectors, G92 Exhaust option, Custom Chip(By gp90gta). car definitely wouldnt be what it is today without alot of help from all my friends here... thanks guys
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black83zee
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We need some weights of 17" wheels with tires...I'll weigh my C5 rims, but I need to get to them in storage.
Posted Image
350, carb, headers, side exhaust, T-5, aluminum ds, Baer discs, Bilsteins, tubular a-arms,
tubular torque arm, adjustable track bar and control arms.



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BigEd65
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what can i modify next ?
1320B4U
Aug 21 2010, 09:50 AM
Another thing people should look at is the weight of themselves....you don't see 250lb horse jockeys do you?
what exactly are you trying to say

92 Black Z28 5.7 ZZ4, HSR, Trickflow 195s, TPIS 409 cam, Dyno Dons, BBK 58mm, Ram Air, NOS, Level 10 built 700r4 ProTorque 3200 stall, LEDs, 4th Gen leather, Custom Tune by gp90gta, Megashifter, Full MSD Ignition, UMI SFC, K-member, A-arms , Spohn Panhard Bar, LCA's, Torque Arm, Crossmember & 25mm Sway bar, TDS wonderbar, Edelbrock modified STB, 3.73 Moser 12 bolt, BBK Fuel Pump, Moog springs and Bilsteins all around and March Revolver pulley system, Wilwood full Big Brake Kit and Master Cylinder ..... I give up .... lots of sh!t oh yeah a full Sport Comp gauge package

92 White Z28 5.0 Stock T-Tops


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firechicken269
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89 Formula 350
BigEd65
Aug 22 2010, 02:00 PM
1320B4U
Aug 21 2010, 09:50 AM
Another thing people should look at is the weight of themselves....you don't see 250lb horse jockeys do you?
what exactly are you trying to say
time for a SUPERCHARGER!!! :rock:
Posted Image
1989 Formula 350, 5.7 TPI, T-5, WS6 suspension, 3:23 posi rear, disc brakes, T-Tops, Holley 52mm TB, Ported Upper Plenum, SLP Siamese Runners, 24# Injectors, G92 Exhaust option, Custom Chip(By gp90gta). car definitely wouldnt be what it is today without alot of help from all my friends here... thanks guys
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Formula388
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Senior Technical Advisor
Stan, it doesnt make sense to weigh different size rims... Take 3 different style 16" rims and youll end up with 3 different weights, same things with tires! With so many different tires available each has a different weight you wont get anything accurate to compare to.
BTW I have been searching for 17" Magnesium corvette rims... I bet those weigh less than you 16" rims
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black83zee
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Media Specialist
Magnesium is definitely a lighter material....but very expensive. It was really used a lot in the 60's then everyone switched to aluminum alloys. You hardly ever see mag wheels now.
Edited by black83zee, Aug 22 2010, 03:43 PM.
Posted Image
350, carb, headers, side exhaust, T-5, aluminum ds, Baer discs, Bilsteins, tubular a-arms,
tubular torque arm, adjustable track bar and control arms.



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1320B4U
"Miley Cyrus Club Pres"
Magnesium corvette rims where very a expensive option back in '03?? Some of the lightest wheels are made by volk and i think there 17lbs for 16's. A lot of guys (in the import scene) used to run the 93+ rx7 5 spokes, they're really light stock rim and a 16" but had a tendency to crack on the spokes. The 18" racinghart c5's i had that were running 225/40 series rubber were 50lbs even. Interesting thread though.

Were the lexan tops an option in our cars? If so how much? Where they just used as a secondary manufacuturer that GM used back in the day?
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1991 R/S..1992 L98 Firehawk Tribute (sold)..1999 c5/t56 (sold)..2012 z-71
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black83zee
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Checked the Crager site.....17X8 steel rim=40lbs......17X8 alloy rim=26lbs.....15X8 alloy rim=19lbs. interesting they don't make a 16" rim in alloy.
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350, carb, headers, side exhaust, T-5, aluminum ds, Baer discs, Bilsteins, tubular a-arms,
tubular torque arm, adjustable track bar and control arms.



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charged355
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Nythirdgen Founder
My front rim n tire weigh twice as much what the back one does stupid steel wire in the tires lol fronts are 15x4 and the backs are 15x10
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Custom Forged 355 / Solid roller cam/valvetrain / Victor Jr heads / Hurricane Intake/ Accufab 1250cfm Throttle body / MegaSquirt 3 Engine Managment/ 1000cc SouthBay Injectors/ 7.6:1 CR / 4" Custom Single Exhaust / 4000 Circle D Stall/ CK Performance Billet 4L80 FMVB Trans Brake / 3" Chromoly Driveshaft / Full UMI Tubular Rear Suspension / Moser/Strange 9" / 4:11 gears Detroit Locker / Sumped LS1 gas tank / A1000 Fuel pump / A1000 FPR / Paxton Fuel filter / -10 Fuel line -8 return / Borg Warner S475 Turbo @10psi/ JGS 50mm WG & 56mm BOV / PA Racing Complete Tubular Front End Kit With Coilovers / Full Autometer Dash / Custom Black Suade Guts / Built by yours truly/ Tuned by George the EFI whiz

http://www.youtube.com/channel/UCnxlPhzRElZYM5YE-n2NRUw
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Formula388
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Senior Technical Advisor
black83zee
Aug 22 2010, 04:12 PM
Checked the Crager site.....17X8 steel rim=40lbs......17X8 alloy rim=26lbs.....15X8 alloy rim=19lbs. interesting they don't make a 16" rim in alloy.
Corvette magnesium wheels: Front: 17x8.5 weighs17lbs and Rear: 18x9.5 weighs 18.5lbs
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klowny
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Da Klownfather
black83zee
Aug 21 2010, 11:36 AM
Then Danica Patrick should be winning! Do they make her carry extra weight?
I actually thought about carbon drive shafts.....but then I saw a photo of one that just shattered....well, I didn't need that!
Can someone weigh a 16" rim and tire and post it here? Then we need the same for the 17".
One thing to note on carbon fiber driveshafts..they can handle upwards of 1500 horsepower and are one of the most strongest and lightweight ds u can use...they are also very safe..when they break, they broom up..



Check out my thirdgen videos and technical how to vids...from basic car maintenance to Performance mods..
subscribe (its free to subscribe) and you will be updated on future projects:

https://www.youtube.com/watch?v=6HO-D0aIgx8

https://www.youtube.com/watch?v=mIx1TqfXt6A

Thanks!
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