Coilover springs - what brands are close to advertised rates ? - CorvetteForum - Chevrolet Corvette Forum Discussion

Go Back  CorvetteForum - Chevrolet Corvette Forum Discussion > General Corvette Topics > Autocrossing & Roadracing
Reload this Page >

Coilover springs - what brands are close to advertised rates ?

Notices
Autocrossing & Roadracing Suspension Setup for Track Corvettes, Camber/Caster Adjustments, R-Compound Tires, Race Slicks, Tips on Driving Technique, Events, Results
Sponsored by:
Sponsored by:

Coilover springs - what brands are close to advertised rates ?

Old 05-24-2018, 07:02 AM
  #1  
blackozvet
CF Senior Member
Thread Starter
 
blackozvet's Avatar
 
Member Since: Nov 2009
Location: Adelaide South Australia
Posts: 1,884
Thanked 67 Times in 64 Posts
Default Coilover springs - what brands are close to advertised rates ?

I have now bought 2 x sets of coilover springs for my rear coilovers.

A pair of QA1's rated at 350 lbs - tested at 331 lbs.
A pair from a business that sells to the riceburners and drifters, rated at 7.5 kg - which converts to around 400 - 420 lbs - actual rate 291 lbs !

for the people that have tested their springs against the advertised rate over the years, which brands are usually close ?

below on the left is the spring that was sold to me as being around 400 lbs against a real 450 lb spring.


blackozvet is offline  
Old 05-24-2018, 11:51 AM
  #2  
96CollectorSport
CF Senior Member
 
96CollectorSport's Avatar
 
Member Since: Sep 2003
Location: If you don't weigh in you don't wrestle Road America
Posts: 2,934
Thanks: 0
Thanked 38 Times in 26 Posts
Default

I rate each spring before I install them and Hyperco are going to be the closest, they are +/- 3% if I remember correctly.
96CollectorSport is offline  
The Following User Says Thank You to 96CollectorSport For This Useful Post:
blackozvet (05-24-2018)
Old 05-24-2018, 12:29 PM
  #3  
xtremeyolks
Junior Member
 
Member Since: Aug 2017
Location: SF Bay Area CA
Posts: 31
Thanks: 0
Thanked 6 Times in 5 Posts
Default

Swifts or hyperco seem to be the most true to rate I've seen.
xtremeyolks is offline  
The Following User Says Thank You to xtremeyolks For This Useful Post:
blackozvet (05-24-2018)
Old 05-24-2018, 03:01 PM
  #4  
GSpeed
Supporting Vendor
 
GSpeed's Avatar
 
Member Since: Dec 2015
Location: Cresson TX
Posts: 785
Thanked 366 Times in 205 Posts
Default

Swift, hyperco, or eibach. Beware of spring shape on hyperco, see this thread-

https://www.corvetteforum.com/forums...to-tierod.html
__________________

"Keeping You on Track!"
http://www.gspeed.com
877-512-5180

Instagram_Facebook_YouTube

GSpeed C7Z Cooling Development

2018 NASA TTU & TT3 National Champions
GSpeed is offline  
The Following User Says Thank You to GSpeed For This Useful Post:
blackozvet (05-24-2018)
Old 05-24-2018, 08:28 PM
  #5  
blackozvet
CF Senior Member
Thread Starter
 
blackozvet's Avatar
 
Member Since: Nov 2009
Location: Adelaide South Australia
Posts: 1,884
Thanked 67 Times in 64 Posts
Default

thanks guys, good to know, I can get Hyperco in Aus, if I want Eibach will have to get them from Summit.

The guy who tested my springs said that typically most coil springs that he tests are anything up to 10% below advertised rate - which isnt really helpful if targetting a certain spring rate for the track !

its amazing how a 'fat' spring can cause clearance issues, had that in the front going to a higher rate.
blackozvet is offline  


Thread Tools
Search this Thread
Quick Reply: Coilover springs - what brands are close to advertised rates ?


Sponsored Ads
Vendor Directory

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: