Road Racing Road Course | Autocross

Weight distribution

Thread Tools
 
Search this Thread
 
Old 10-17-2008, 02:31 PM
  #1  
Teching In
Thread Starter
 
fantastixvoyage's Avatar
 
Join Date: Feb 2008
Location: MotorCity, MI
Posts: 44
Likes: 0
Received 0 Likes on 0 Posts
Default Weight distribution

Any idea of the distribution for a stock '99 Z28??? Trying to locate scales locally for an exact numbers but figured someone here might know approximate numbers.

I'm looking at swapping motors, kmember, rear end, etc over the winter and wanted to take this time to play with weight. For the motor I'm undecided between an iron or alumimum based engine.

Not sure if I just want to cut weight everywhere and stay aluminum block or if going to a tubular Kmember and iron block would be a better combo...

Last edited by fantastixvoyage; 10-17-2008 at 02:39 PM.
Old 10-17-2008, 03:18 PM
  #2  
TECH Fanatic
 
2FAST4U's Avatar
 
Join Date: Oct 2002
Location: F.H,Waterford,Port Huron, MI
Posts: 1,648
Likes: 0
Received 0 Likes on 0 Posts

Default

I was thinking about this to. I have lost a lot of weight but also added some. I must still be heavy as my front still sits low about -1".

I have removed all ac/heat,seats,air bags,kmember,arms upper/lower. In the off season I will drop another 150lb of the front. With pin on hood,cutout fenders,bumper!,ect...

There is a pic in the drag forum of a Z28 with 5" of front fender gap due to weight drop. So know I am lost. I realy need base line numbers before the cuts.
Old 10-17-2008, 03:35 PM
  #3  
TECH Senior Member
 
JD_AMG's Avatar
 
Join Date: Jan 2004
Location: St.Charles MO
Posts: 5,801
Likes: 0
Received 16 Likes on 15 Posts

Default

From what I've read 4th gens have 56/44 F/R weight distribution.
Old 10-17-2008, 05:38 PM
  #4  
TECH Senior Member
iTrader: (14)
 
mitchntx's Avatar
 
Join Date: Nov 2001
Location: DFW, Texas
Posts: 6,480
Likes: 0
Received 2 Likes on 2 Posts

Default

Originally Posted by JD_AMG
From what I've read 4th gens have 56/44 F/R weight distribution.
LT1 4th gens are closer to 57 or 58% front.
Old 10-19-2008, 07:27 AM
  #5  
TECH Fanatic
iTrader: (15)
 
subtlez28's Avatar
 
Join Date: Jun 2006
Location: Janesville WI
Posts: 1,155
Likes: 0
Received 0 Likes on 0 Posts

Default

Like JD said 56/44:
I scaled my 02 Z28, not much lightening, besides hollow sway bars.
Me in it ~170, 3/4 tank of gas=3607 total
LF=1041 LR=815
RF=983 RR=767
Front 2024 (56%) Rear 1583 (44%)
Old 10-19-2008, 08:40 AM
  #6  
TECH Regular
 
AU N EGL's Avatar
 
Join Date: Mar 2006
Location: Rolesville, NC
Posts: 471
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by subtlez28
Like JD said 56/44:
I scaled my 02 Z28, not much lightening, besides hollow sway bars.
Me in it ~170, 3/4 tank of gas=3607 total
LF=1041 LR=815
RF=983 RR=767
Front 2024 (56%) Rear 1583 (44%)

The idea is to "corner balance" your car

LF+RR =

RF+LR =

or as above

1041(LF) + 767 (RR) = 1808

983 (RF) + 815 (LR) = 1798

LF+RR= 1808 = 50%

RF+LR=1798 = 50%

This car with driver is balanced.
Old 10-19-2008, 08:49 AM
  #7  
TECH Senior Member
iTrader: (14)
 
mitchntx's Avatar
 
Join Date: Nov 2001
Location: DFW, Texas
Posts: 6,480
Likes: 0
Received 2 Likes on 2 Posts

Default

Originally Posted by mitchntx
LT1 4th gens are closer to 57 or 58% front.
Not sure where my mind was ...

LS1 equipped cars should be closer to 57%.

I weigh 275 and my 96 TA came off track last weekend with almost a full tank of gas at 3360. So the car weigh under 3K dry.

I'm tall enough that I have the seat mounted to the floor in the rear passenger footwell, probably 8-10" further back that stock.



Quick Reply: Weight distribution



All times are GMT -5. The time now is 06:21 AM.