C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Minimum car height to remove spring for lowering

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Old Mar 7, 2009 | 04:11 AM
  #21  
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Just so you know what I did. I put a 3/8" piece of DELRIN on the end of the spring tips, as there was none when I received it. I also did the wedge kit in the center that most people do. I did not use any of the aluminum spacers that were in there originally on my 93. So, just wedges, and 3/8 inch delrin pieces on tips of spring put me at 25.5 inches at front.
Kinda low. I am getting ready to put another 3/8 inch more on the tips to raise it a little, as I am a little to low and my Flowmaster resonator scrapes a little and front spoiler allot.
I also run -2.2 degrees negative camber up front. WIthout it, the tires would hit the inner fenderwells. I use the ZO7/Z51 115nm spring up front too, so its pretty stiff, for a factory spring.
I do have 275/40/17 up front and 315/35 rears, so they may be a little lower than what looks like your rims/tires. Not sure though.
Here is a pic to show how low it is.
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Old Mar 7, 2009 | 12:22 PM
  #22  
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Originally Posted by 96GS#007
That's how mine was.
My base spring is curved like your top Z51 spring in your picture. Less curved then the bottom one. What code is that one? Mine is FHA (93.1).
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Old Mar 7, 2009 | 12:50 PM
  #23  
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Originally Posted by Aardwolf
My base spring is curved like your top Z51 spring in your picture. Less curved then the bottom one. What code is that one? Mine is FHA (93.1).
My Z51 spring is FHB. I believe it was '92 they switched to the Z51 FHA springs which weren't quite as stiff.

Base spring is a base '96 spring. Not sure of the spring code off the top of my head.
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Old Mar 7, 2009 | 04:42 PM
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Jeez I checked and it looks like that would be a 60 n/mm rate! I didn't know they made them so much less.

So if you have a spring rate of less then 93.1 n/mm then you would need to have much more for min. height. (looks like 93 non Z51 and 115 rate Z51 springs would need the same height for clearance)
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