Suspension and Chassis Questions about your suspension? Need chassis advice?

Spring Drop Comparison?

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Old Jul 13, 2003 | 04:41 PM
  #1  
wm_sorg's Avatar
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From: Annandale, VA
Car: 1991 Formula Firebird
Engine: 2001 LS1 Modded
Transmission: 2001 4L60E Yank SS3600 TC
Spring Drop Comparison?

Hi Guys,

I need to get an idea of how much real (including setteling) drop I will get from the following springs:

Ebiach Pro kit

B+G Sports

Hotchkiss

Global west

If possible I would like comments on quality and range of setteling. From reading the other threads on the subject, I still can not get a clear picture.

My car sat at 27.75 before the LS1 install. Not it is pitching up 1/2 an inch. I am looking to keeping the car as close to stock ride height as possible. Ideally I would only like to lower the front 1/2, to 3/4 inch from its current position.

It looks like I will be forced to use the factory rears to maintain the correct stance. If get lowering springs in the back how much can height can I get back using the 4th gen isolators?

Here is the before pic:
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Old Jul 13, 2003 | 04:54 PM
  #2  
wm_sorg's Avatar
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Joined: Dec 1999
Posts: 954
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From: Annandale, VA
Car: 1991 Formula Firebird
Engine: 2001 LS1 Modded
Transmission: 2001 4L60E Yank SS3600 TC
Sorry,

Here is another try.
Attached Thumbnails Spring Drop Comparison?-fendergap.jpg  
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Old Jul 13, 2003 | 09:59 PM
  #3  
Sonar_un's Avatar
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From: Houston, TX
Car: '86 T/A
Engine: 350/LT1 Intake
Transmission: 700R4 - Built
Axle/Gears: 4th gen 3.42
I am thinking pro-kit (assuming it drops about 1"). Then with the 4th gen isolators you should gain enough to get you pretty close to that mark. You may be a little lower than stock, but I would say thats better than being too high
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Old Jul 13, 2003 | 10:10 PM
  #4  
MrDude_1's Avatar
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Joined: Jun 2001
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From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
so you have a LS1 and the lack of weight caused the nose to come up, and you want the stock ride height back?

my thoughts would be:

1. cut the coil until its correct...
2. isnt the weight close to the V6 weight? can you use stock V6 springs?
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Old Jul 13, 2003 | 10:18 PM
  #5  
wm_sorg's Avatar
Thread Starter
Senior Member
 
Joined: Dec 1999
Posts: 954
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From: Annandale, VA
Car: 1991 Formula Firebird
Engine: 2001 LS1 Modded
Transmission: 2001 4L60E Yank SS3600 TC
Thanks. Any one here have experience with the B+G sports. They advertize 1.3 drop in front and 1" in rear.

Please keep posts coming.
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Old Jul 13, 2003 | 11:52 PM
  #6  
SLP IROC-Z's Avatar
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From: Salem, NH
Car: 1999 Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.23 10 Bolt
my sport lines sit 25.75 front and 26 rear with no rear isolators, its a lot lower then stock but it looks really ncie.
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Old Jul 14, 2003 | 02:35 AM
  #7  
Justins86bird's Avatar
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Joined: Jul 1999
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From: Another world, some other time
Car: 86 LG4 & 92 TBI Firebird
Engine: The Mighty 305!
Transmission: 700R4
Axle/Gears: 3.42
My Hotchkis springs did a 1" drop in the front and 1.5" in the back. Had WS6 stock.
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