Quick weight removal questions!!
Thread Starter
Le Mans Master
Joined: Feb 1999
Posts: 9,922
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
Quick weight removal questions!!
R D Racing ST frame 47 pounds, front passenger seat ?? Camber Brace ?? Front sway bar (32 0r 30,mm solid whatever the 93 ZO7 was)??
Spare tire is gone. What else?
Anything else I can remove to assist in gettting one or two tenths down.
Limited funds and time. I dont need the S/T Frame for the track, as yo dont need it till 11.49. I have
Spare tire is gone. What else?
Anything else I can remove to assist in gettting one or two tenths down.
Limited funds and time. I dont need the S/T Frame for the track, as yo dont need it till 11.49. I have
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
My '88 sport seat & track is worth maybe 40lbs or so, pretty heavy assembly.
Spare & jack could be another 40-45lbs.
Dropping from 3/4 tank to 1/4 tank of fuel is worth about 60lbs.
These should be worth 1.5sec reduction in ET or more properly increase in trap speed.
If you hit the track with a good DA that will give you some added power.
My front sway bar is hollow so almost no weight there.
Spare & jack could be another 40-45lbs.
Dropping from 3/4 tank to 1/4 tank of fuel is worth about 60lbs.
These should be worth 1.5sec reduction in ET or more properly increase in trap speed.
If you hit the track with a good DA that will give you some added power.
My front sway bar is hollow so almost no weight there.
Thread Starter
Le Mans Master
Joined: Feb 1999
Posts: 9,922
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
I hear the parts I am looking at taking off arent light, but I have no scale, so I am looking to see if anyone knows the weights.
100 pounds huh, well I if I didnt eat, and took allot of exlaxx ....
100 pounds huh, well I if I didnt eat, and took allot of exlaxx ....
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by 65Z01
My '88 sport seat & track is worth maybe 40lbs or so, pretty heavy assembly.
Spare & jack could be another 40-45lbs.
Dropping from 3/4 tank to 1/4 tank of fuel is worth about 60lbs.
These should be worth 1.5sec reduction in ET or more properly increase in trap speed.
If you hit the track with a good DA that will give you some added power.
My front sway bar is hollow so almost no weight there.
Spare & jack could be another 40-45lbs.
Dropping from 3/4 tank to 1/4 tank of fuel is worth about 60lbs.
These should be worth 1.5sec reduction in ET or more properly increase in trap speed.
If you hit the track with a good DA that will give you some added power.
My front sway bar is hollow so almost no weight there.
RACE ON!!!
Safety Car
Joined: Sep 2003
Posts: 3,599
Likes: 24
From: Orange County NY
St. Jude Donor '10-'11-'12-'13
Melting Slicks
Joined: Oct 2000
Posts: 3,426
Likes: 4
From: Heidelberg PA
Cruise-In V Veteran
Be careful with the fuel - I keep mine near 1/2. If you get starvation off the line - no fuel, you will never forget the feeling.
Good Luck
PS - If you trailor it and get rid of the exhaust, you will be there.
Good Luck
PS - If you trailor it and get rid of the exhaust, you will be there.
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Team Owner
Joined: Sep 2003
Posts: 20,177
Likes: 673
From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
Originally Posted by steve40th
100 pounds huh, well I if I didnt eat, and took allot of exlaxx ....
Heel & Toe
Joined: Oct 2005
Posts: 15
Likes: 0
From: Tucson Arizona
one thing to consider is rim weight. 1 lb off a rim is the same as 10 off the body, because its rotational mass. good light weight rims, save 10 lbs off each tire, 40 total, is like 400 pounds less (is what i am told).
i have forgelines on mine. supposed to be 10 pounds lighter per rim, i bought the car with them on it.
i have forgelines on mine. supposed to be 10 pounds lighter per rim, i bought the car with them on it.
Last edited by Shorin; Nov 13, 2005 at 01:14 AM.
Thread Starter
Le Mans Master
Joined: Feb 1999
Posts: 9,922
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
Originally Posted by Shorin
one thing to consider is rim weight. 1 lb off a rim is the same as 10 off the body, because its rotational mass. good light weight rims, save 10 lbs off each tire, 40 total, is like 400 pounds less (is what i am told).
i have forgelines on mine. supposed to be 10 pounds lighter per rim, i bought the car with them on it.
i have forgelines on mine. supposed to be 10 pounds lighter per rim, i bought the car with them on it.
Safety Car
Joined: Apr 2004
Posts: 4,532
Likes: 7
From: Lahaina Hi
If you have an electric seat on the drivers side and mechanical on the passenger side remove the drivers side seat and put the passenger seat inplace ,of the drivers seat.
About 40 lbs. diff.
The only problem ,if you have the seat up to far the lever for the seat back can trigger and throw the seat back foward.
Install the plastic head lights from mid america,dump the glass 2 lbs.
Remove the A/C.
Remove the carpet 36 lbs.
Remove the top ,but it will slow the car about a .10
Wax the car less wind resistance.
About 40 lbs. diff.
The only problem ,if you have the seat up to far the lever for the seat back can trigger and throw the seat back foward.
Install the plastic head lights from mid america,dump the glass 2 lbs.
Remove the A/C.
Remove the carpet 36 lbs.
Remove the top ,but it will slow the car about a .10
Wax the car less wind resistance.
Drifting
Joined: Aug 2000
Posts: 1,614
Likes: 0
From: Colleyville Texas
Change out my regular battery at the track and put in lite weight Odyssey PC680. Weighs 13 LBS. About 25 LBS less than regular. Works well all day even with start and stop in staging lanes. Car weighs 2995. Battery costs $68.00
Le Mans Master
Joined: Jan 2002
Posts: 9,036
Likes: 13
From: Edmonton AB
Originally Posted by Red Rocket
Change out my regular battery at the track and put in a light
weight Odyssey PC680.
weight Odyssey PC680.
"L 7-3/16, W 3-1/16, H 6-9/16(in). 15 lbs. Top and side terminals."
It appears too small to clamp securely using the OEM method. Did
you add an aftermarket bracket and something to keep the battery
from sliding around on the mounting plate?
Also, what's your trick for quickly R&R'ing the C4 battery at the track?
.
Drifting
Joined: Aug 2000
Posts: 1,614
Likes: 0
From: Colleyville Texas
It appears too small to clamp securely using the OEM method. Did
you add an aftermarket bracket and something to keep the battery
from sliding around on the mounting plate?
Also, what's your trick for quickly R&R'ing the C4 battery at the track?
.[/QUOTE]
The battery on its side attached to the connectors fits snug on top of the factory mounting plate. Keep all screws on the side panel just tight enough where I could unscrew by hand. Used special wrench for connectors. Did not use battery hold down bracket and bolt.
you add an aftermarket bracket and something to keep the battery
from sliding around on the mounting plate?
Also, what's your trick for quickly R&R'ing the C4 battery at the track?
.[/QUOTE]
The battery on its side attached to the connectors fits snug on top of the factory mounting plate. Keep all screws on the side panel just tight enough where I could unscrew by hand. Used special wrench for connectors. Did not use battery hold down bracket and bolt.
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
Originally Posted by Shorin
one thing to consider is rim weight. 1 lb off a rim is the same as 10 off the body, because its rotational mass. good light weight rims, save 10 lbs off each tire, 40 total, is like 400 pounds less (is what i am told).
i have forgelines on mine. supposed to be 10 pounds lighter per rim, i bought the car with them on it.
i have forgelines on mine. supposed to be 10 pounds lighter per rim, i bought the car with them on it.
Except with the 1lb = 10. I was told that 1lb of rotational mass = 3 to 4 lbs of body mass which worked out to be about correct if the rule of thumb of 100 lbs = 1 tenth of a second. I purchased John Mackeys old race wheels and tires. They are the 26x11.5x15 ET Streets (bias ply) on 15x10 Weld rear wheels and 165x15 radial tires on the front on 15x3.5 weld wheels.
I have a set of digital refrigerant scales that are very accurate, and the difference in weight between my stock wheels and mich. tires, vs the race wheels and tires is 74 lbs.
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
Originally Posted by 85vet
Be careful with the fuel - I keep mine near 1/2. If you get starvation off the line - no fuel, you will never forget the feeling.
Good Luck
PS - If you trailor it and get rid of the exhaust, you will be there.
Good Luck
PS - If you trailor it and get rid of the exhaust, you will be there.
But dont it drive you crazy that a "sports car" is designed with such a poor fuel pick up as the C-4 has? Its another one of the things that in the 12 years that the C-4 was produced, they never corrected. The exhaust idea, I have been considering doing myself. If you do, look at where your headers will be exhausting all that heat. I believe you need a turndown off of the header to protect the shift cable etc, on the transmission.