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Old 10-05-2007, 12:22 PM   #1
TurboLX
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Default Weight Reduction 101 (Mustangs)

Weight - Your basic 5 speed coupe without driver weights 3250lbs. So with an average driver weighing about 180lbs that puts your race weight at 3430lbs. At that weight and a power to weight ratio of .075 you would need 258RWHP to hit 12’s. Power to weight is the power of your car (rear wheel) divided by race weight of the car. Using my car when I broke into the 12’s first time I was making 246RWHP and had a race weight of 3250lb, which worked out to a .075 power to weight ratio or .075RWHP per pound of the car. From what I’ve seen a car can get into the 12s with a .075 to .080 P/W ratio. So if your race weight is 3430lbs then 3430 * .075 = 257.25RWHP. As long as you keep this ratio in the .075 to .080 range you are fine plus keep in mind you can drop weight instead of adding power. An example of this is a car with a 3000lb race weight could break into the 12s with 225RWHP

Weight Reduction 101:
Fiberglass or Carbon Fiber (if available)
Hood
Front Bumper
Fenders
Doors
Dash
Trunk lid
Rear bumper

Other Ideas:
Tubular k-member
Tubular A-arms
Coil-overs
Aluminum Block
Aluminum radiator
Aluminum Heads
Aluminum Driveshaft
Aluminum Flywheel
Aluminum underdrive pulleys
Remove smog
Remove front sway bar
Remove Power steering
Remove Inner wheel tubs
Remove Spare tire & Jack
Remove Air Conditioning
Remove Rear Seat
Remove rear seat brace
Remove Sound Deadening In trunk and under rear seat and in Interior panels
Remove Trunk Panels
Remove Black Block around the Driveshaft (a.k.a the "Dogbone")
Remove Strut tower brace
Remove Spoilers
Remove Stereo Equipment
Remove Air box
Remove Center Console
Remove floor mats
Remove rear seatbelts
Remove black boxes in rear (which is supposed to help stop the car during a rear end collision)
Remove front/rear bumper foam
Remove Bumper Supports
Remove Quad Shocks
Remove Cruise Control
Remove/ Cut your exhaust off before the rear axle
Remove Fog lights and mounting braces
Remove Radio and accessories
Remove the heater assembly
Remove door supports
Remove power locks and window motors are heavy too
Windshield washing system
Light weight battery (Odyssey makes a 25lbs battery)
Fuel Cell
Light weight Racing Brakes (Aerospace brakes)
Lexan Windows
Lightweight Rear Control Arms
Racing seats Racing Rims *aka Weld Prostars Bogart’s
The black braces behind the rear tires (Inside the fenders) There is a ballast weight bolted to the inner right fender used to dampen cowl shake. (Verts Only)
-Stock mid-pipes and Headers weigh a ton -
Get a Gym Membership

At the track you can take out passenger Seat

Weight Transfer
-Remove Front Sway bar
-Relocate Battery
*most/ some of the stuff is not for street use. Use common sense*
If you can think of anything else let me know and i will add it in.


(Stock Parts) Description Quantity Weight in LBS (Each)
Carpet 1 14
Center console 1 7
Cobra R steering wheel 1 24.5
Dash 1 25
Door glass 2 11
Door panel 2
Drive Side Air Bag 1 2
Front Driver Side Cloth Seat 1
Front Driver Side Leather Seat 1 58
Front Floormat 2 2
Front Passenger Side Cloth Seat 1
Front Passenger Side Leather Seat 1 40
Jack and tire iron 1 7
Mach 460 door speakers, cass/CD player, amp 1 15
Mach 460 rear speaker enclosure 1 22
Passenger side air bag 1 7.5
Quarter window and motor (convertible) 2 11
Rear Cloth Seat 1 53
Rear Headrest 1 4
Rear Leather Seat 1 46
Seat Belt 4 2.5
Side impact beams in door 2 20
Sound deadening material (est.) 1 10
Spare tire 1 25
Trunk carpet and board 1 5.5
Window motor 2

Interior (Aftermarket Parts)

Description Quantity Weight in LBS (Each)
Cobra clubman seat 2 12
Convertible top with all parts 1 100
Kirky enconomy drag seat 2
Kirky road race seat 2 18
RCI plastic race seat 2 10
Rookie MOMO coarse racing seat 2 11

Exterior (Stock Parts)

Description Quantity Weight in LBS (Each)
Air bag sensor 2 1
Boxes behind rear wheels and brackets 2 4
Carbon Cannister 1 5
Convertible weight in pass. Side fender 1 25
Foglight 96-98 Cobra 2 1
Foglight 96-98 GT 2
Foglight 99, 01, 03 Cobra 2
Foglight 99-03 GT 2
Front bumper support and foam 1 14
Hood 01-03 1
Hood 99/00 (no scoop) 1 32
Rear bumper support and foam 1 22.5
Side Scoop 01-03 GT 2
Side Scoop 99/00 GT 2 0.25
Side Scoop Bullitt 2 0.25
Stock gas tank 1 32.5
Tire Goodyear Eage 245/45/17 4 20.5
Wheel 01/02 GT 17" 4 20
Wheel 03 Cobra 17" 4
Wheel 99, 01 Cobra 17" 4
Wheel 99/00 GT 16" 4
Wheel 99/00 GT 17" 4 22
Windshield wiper 2 1.5
Wing 01-03 1
Wing 99/00 1 8

Exterior

Description Quantity Weight in LBS (Each)
Hood Kaenen Cobra R (Bolt-on) 4 18.5
Hood Kaenen Cobra R (Lift-off) 4 10
MT ET Drag 26x8.5x15 2 20
Wheel Pro Star 15x3 2 8
Wheel Pro Star 15x8 2 12
Wheel Steeda Ultralite 4 17

Engine (Stock Parts)


Description Quantity Weight in LBS (Each)
A/C blower/heater core 1 18
A/C compressor/lines 1 36
A/C condensor 1 5
Air box/filter/silencer 1 3
Balancer pulley 1 8
Battery 1 36
Catted H pipe 1 45
Exhaust manifold 2V 2 8
Intake 02-03 GT 1
Intake 96-98 Cobra 1
Intake 99, 01 Cobra 1
Intake 99-01 GT 1 8
Intake Bullitt 1 37
Tailpipe 2 10

Engine

Description Quantity Weight in LBS (Each)
BBK longtube header 2
BBK shorty H pipe 1
Dynabatt 1 13
FRPP shorty header 2
Hooker longtube header 2
Hooker shorty X pipe 1
JBA shorty header 2
MAC longtube header 2 11.25
MAC O/R H pipe 1 15
MAC Prochamber 1
Steeda underdrive pulleys 1 8
Vortech S trim with brackets 1 20
VRS O/R X pipe 1
VRS shorty catted X pipe 1
VRS shorty X pipe 1

Suspension (Stock Parts)

Description Quantity Weight in LBS (Each)
A arms 2 13
K-member 1 58
Lower control arm 2 6
Quad shock 2 2
Shock 2 2.5
Spring front 2 9
Spring rear 2 6
Strut 2 8
Strut tower brace 1 10
Sway bar/mounts front 1 17
Sway bar/mounts rear 1 10
Upper control arm 2 2.5

Suspension (Aftermarket Parts)

Description Quantity Weight in LBS (Each)
AJE tubular K member mild steel 1 24
Griggs boxed LCA 2 7
MM/Pro3i LCA 2 6
Steeda strut tower brace 1 10.5
Steeda sway bar 1 13
UPR Anti-sway bar 1 13
UPR Tubular K member chromoly 1 19
UPR Tubular A arms chromoly 2 5
UPR Coil overs 2 5
UPR Caster camber plates 2 1

Drivetrain (Stock Parts)

Description Quantity Weight in LBS (Each)
Axle 2
Bump stop bracket above rear end weight 1 1
Clutch 1 3.5
Driveshaft 1 22
Half shaft Cobra 2 26
Mott bar (weight under rear end) 1 8
Pressure plate 1 17
Trans 3650 w/bellhousing 1 120
Trans T-45 w/bellhousing 1 109
Trans T-5 w/o bellhousing 1 75

Drivetrain (Aftermarket Parts)

Description Quantity Weight in LBS (Each)
Centerforce DF disk 1 3.5
Drive Shaft Shop chromoly half shaft 2 24
FRPP aluminum driveshaft 1 12
FRPP heavy duty pressure plate 1 17
Lakewood bellhousing 1 38
Trans 3550 w/o bellhousing 1 100
Trans T-56 w/bellhousing 1 115-129
Trans TKO w/o bellhousing 1 100
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Old 10-14-2007, 10:17 PM   #2
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Default Re: Weight Reduction 101 (Mustangs)

Im pretty sure thats it
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