3 replies to this topic

[Apexed]

Like the title says I am looking to see if anyone knows what the factory rear spring rate was on our cars? Do we also know the 1g Integra rate? I did not find any numbers for either of these two springs using the search feature. If nobody has this number I am in the position to do a little testing if it would help out.


Justin

[DEIVIONCRX]

Unfortunaly i cant tell you the factory springrate.

But the Eibach springs for our cars, which cant be very much stiffer than stock cuz they were soft as hell, were progressive 60lb-200lbs.

So i would say stock is something around 25-50lb to 100-150lbs

[Apexed]

Ok so I had to know what they were so I did the mechanical testing and came up with the following: (as a bonus, I also did the 1g integra rears)

CRX Spring Rate

Disp (in.),Load (lbs.), Rate (lbs./in.)
0.50, 25.9, 51.8
1.00, 55.5, 55.5
1.50, 86.8, 57.8
2.00, 117.6, 58.8
2.50, 148.5, 59.4
3.00, 179.2, 59.7
3.50, 209.8, 60.0
4.00, 240.9, 60.3
4.50, 276.2, 61.4
5.03, 315.9, 62.8
5.50, 353.3, 64.2
6.00, 395.4, 65.9
6.45, 439.2, 68.1
7.07, 501.0, 70.9
7.50, 546.7, 72.9
8.01, 604.3, 75.4

Low Rate = 51.8 lbs./in. High Rate 75.4 lbs./in. Average Rate = 62.8 lbs./in.


1g Integra Spring Rate

Disp (in.), Load (lbs.), Rate (lb./in.)
0.50, 40.5, 80.8
1.00, 82.4, 82.6
1.50, 124.2, 83.1
2.04, 170.2, 83.3
2.50, 208.3, 83.4
2.98, 249.7, 83.7
3.50, 297.4, 85.1
4.01, 349.6, 87.1
4.50, 404.3, 89.8
5.00, 465.5, 93.1
5.50, 529.5, 96.2
6.00, 593.9, 99.0
6.51, 659.9, 101.5
7.00, 729.1, 104.2
7.51, 799.9, 106.6
8.00, 870.1, 108.8

Low Rate = 80.8 lbs./in. High Rate = 108.8 lbs./in. Average Rate = 91.8 lbs./in.


Hope this data helps some others down the road.


Justin

Edited by Apexed, 08 September 2009 - 09:11 PM.

[firstgencrx]

Ok so I had to know what they were so I did the mechanical testing and came up with the following: (as a bonus, I also did the 1g integra rears)

CRX Spring Rate

Disp (in.) Load (lbs.) Rate (lbs./in.)
.50 25.9 51.8
1.00 55.5 55.5
1.50 86.8 57.8
2.00 117.6 58.8
2.50 148.5 59.4
3.00 179.2 59.7
3.50 209.8 60.0
4.00 240.9 60.3
4.50 276.2 61.4
5.03 315.9 62.8
5.50 353.3 64.2
6.00 395.4 65.9
6.45 439.2 68.1
7.07 501.0 70.9
7.50 546.7 72.9
8.01 604.3 75.4

Low Rate = 51.8 lbs./in. High Rate 75.4 lbs./in. Average Rate = 62.8 lbs./in.


1g Integra Spring Rate

Disp (in.) Load (lbs.) Rate (lb./in.)
0.50 40.5 80.8
1.00 82.4 82.6
1.50 124.2 83.1
2.04 170.2 83.3
2.50 208.3 83.4
2.98 249.7 83.7
3.50 297.4 85.1
4.01 349.6 87.1
4.50 404.3 89.8
5.00 465.5 93.1
5.50 529.5 96.2
6.00 593.9 99.0
6.51 659.9 101.5
7.00 729.1 104.2
7.51 799.9 106.6
8.00 870.1 108.8

Low Rate = 80.8 lbs./in. High Rate = 108.8 lbs./in. Average Rate = 91.8 lbs./in.


Hope this data helps some others down the road.


Justin

Somebody push this to the wiki