Tech / Misc Tech topics that don't seem to go elsewhere.
Sponsored by:
Sponsored by:

Spring rates, How do you find out what they are?

Thread Tools
 
Search this Thread
 
Old Dec 18, 2001 | 12:13 PM
  #1  
Spade's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Aug 2001
Posts: 15,369
Likes: 3
From: Redwood City, Ca
Default Spring rates, How do you find out what they are?

I have Neuspeed Sports.....(what and how did you find out) are the rates.
Reply
Old Dec 18, 2001 | 12:14 PM
  #2  
WAFFLES's Avatar
Honda-Tech Member
 
Joined: Jul 2001
Posts: 5,307
Likes: 1
From: Tulsa, OK
Default Re: Spring rates, How do you find out what they are? (Spade)

I have Sprints, me tooooo!!!! tell me please
Reply
Old Dec 18, 2001 | 01:54 PM
  #3  
Jim S. '95 Z28's Avatar
 
Joined: Nov 2001
Posts: 63
Likes: 0
From: Lake Forest, CA, USA
Default Re: Spring rates, How do you find out what they are? (Spade)

Call Neuspeed
Reply
Old Dec 18, 2001 | 03:15 PM
  #4  
BoM's Avatar
BoM
Honda-Tech Member
 
Joined: Apr 2001
Posts: 3,199
Likes: 0
From: South Jersey, USA
Default Re: Spring rates, How do you find out what they are? (Jim S. '95 Z28)

either call neuspeed...or take my spring rate.....im the spring rate man! i found these...i must get them verified

G3 OEM - 212F, 117R
neuspeed sports - 250 f, 185 r

G2 integra
Neuspeed Sport 1.80/1.80 340/230

damn u have an HX, i'll think that they'll be softer than these...cause your lighter



[Modified by BoM, 7:16 PM 12/18/2001]
Reply
Old Dec 18, 2001 | 03:53 PM
  #5  
IntegraGSR23's Avatar
Honda-Tech Member
 
Joined: Oct 2001
Posts: 763
Likes: 0
From: West
Default Re: Spring rates, How do you find out what they are? (Spade)

I have Neuspeed Sports.....(what and how did you find out) are the rates.
Call or e-mail Neuspeed, I am sure they would be more then happy to help
Reply
Old Dec 18, 2001 | 08:32 PM
  #6  
Gasoline Fumes's Avatar
Honda-Tech Member
 
Joined: Apr 2001
Posts: 266
Likes: 0
From: NY, USA
Default Re: Spring rates, How do you find out what they are? (Spade)

I've never tried this formula, but I saved it a while ago.
----------------------------------------------------------
Here's a formula for calculating spring rates.
K=W^4G/8ND^3 this is for springs
K=Stiffness of springs in lbs. per inch
W=Diameter of the spring wire in inches.
G=12,000,000 for streel springs
N=Number of coils(number of free coils +1/2)
D=Diameter of the coil measured to center of wire, in
inches.
If you need more info let me know
Here's the calc for the stock springs
K= ((.395)^4(120,00,000))/(8(6.5)(4.3125)^3)
K=70lbs
That was for the top end of the spring
here's the bottom
K= (((.395)^4(120,00,000))/(8(6.5)(3)^3)
K=208LBS
-one coil has D=3 1/6.5*208+5.5/6.5*70=91.1 lbs
THEREFORE THE STOCK REAR SPRING RATE IS 91.1 lbs
If i were to cut one coil off- 107.5 lbs
If i were to cut two coils off- 131 lbs
-------------------------------------------------
For torsion bars its:
K=1,178,000*(D^4/L*A^2)
=1,178,000 ((0.67)^4/(20*11.625^2))
=88 lbs
That was for the stock torsion bars
The 27mm bars come out to:
K=1,178,000((1.06)^4/2700)
=550 lbs



[Modified by Gasoline Fumes, 12:34 AM 12/19/2001]
Reply
Old Dec 19, 2001 | 06:02 AM
  #7  
Spade's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Aug 2001
Posts: 15,369
Likes: 3
From: Redwood City, Ca
Default Re: Spring rates, How do you find out what they are? (BoM)

Yup, the Sports are on the HX.........love how light the car is and I already have the Alloy's

suprfast.....go somewhere else......yeah, that's it.....go somewhere else.

Reply
Old Dec 19, 2001 | 06:09 AM
  #8  
Crazydave's Avatar
Honda-Tech Member
 
Joined: Nov 2001
Posts: 3,476
Likes: 0
Default Re: Spring rates, How do you find out what they are? (Spade)

So whats the equation for progressive rate springs?
Reply
Old Dec 19, 2001 | 10:51 AM
  #9  
canuckr's Avatar
Honda-Tech Member
20 Year Member
 
Joined: Jul 2001
Posts: 1,352
Likes: 0
From: The Mitten State..
Default Re: Spring rates, How do you find out what they are? (Gasoline Fumes)

Thanks for the formula- gasoline fumes-->
Reply
Old Dec 19, 2001 | 11:55 AM
  #10  
WAFFLES's Avatar
Honda-Tech Member
 
Joined: Jul 2001
Posts: 5,307
Likes: 1
From: Tulsa, OK
Default Re: Spring rates, How do you find out what they are? (canuckr)

sprint told me that these are approx:
250-300f
180-200r
Reply
Old Dec 19, 2001 | 07:03 PM
  #11  
Chicken SOup's Avatar
Honda-Tech Member
 
Joined: Oct 2001
Posts: 524
Likes: 0
Default Re: Spring rates, How do you find out what they are? (WAFFLES)

So the higher the spring rate.. the stiffer the ride is??
I have ITR springs wut are the spring rates on them...
I heard 250/250
anyway
thanks
Reply
Old Dec 20, 2001 | 07:37 AM
  #12  
Spade's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Aug 2001
Posts: 15,369
Likes: 3
From: Redwood City, Ca
Default Re: Spring rates, How do you find out what they are?

300 front and 190 rear. for the Neuspeed sports.
Reply
Old Dec 20, 2001 | 10:38 AM
  #13  
neumonik's Avatar
 
Joined: Nov 2001
Posts: 299
Likes: 0
From: A Town, PA, US
Default Re: Spring rates, How do you find out what they are? (suprfast)

ha, those are all crappy spring rates. nothing to brag about. i run 400/600 GC on my daily driven CRX si.
you really are special


[Modified by neumonik, 9:04 PM 12/20/2001]
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
DIRep972
Acura Integra
1
Mar 13, 2004 05:55 PM
fishnfst
Honda Civic / Del Sol (1992 - 2000)
3
Aug 28, 2003 08:50 PM
93EH6
Road Racing / Autocross & Time Attack
1
Jan 18, 2003 01:04 PM
93EH6
Honda Civic / Del Sol (1992 - 2000)
1
Jan 15, 2003 01:56 PM
ALF
Acura Integra
5
Jul 28, 2001 10:22 PM




All times are GMT -8. The time now is 07:31 PM.