Comptech Sport Spring Rates?

[Honcho]

When LarryB and I put my NSX up in the air, we discovered that I do not have the Eibach spring kit as I thought, but a set of of silver-colored springs instead. LarryB is fairly sure they are Comptech Sport springs. I've searched Prime and discovered that these springs are no longer available, but does anyone know the spring rates? Also, I have silver-colored sway bars, which we think are the Comptech Sways. Does anyone know the diameters? I'm very happy with the setup, but if I do decide to make adjustments, I'd like to know where I'm starting from.

 

[docjohn]

shoot a pm to shad at driving ambitions,he was comptechs tech guru back in the day.

 

[Honcho]

Thanks John. PM Sent.

 

[Honcho]

No doubt Shad is super busy, so anyone else know the data? Google did not help- found lots of springs for sale, but no specs...

Edit: These springs may instead be the RM Racing springs. I did some research and it looks like I have RM sways. It's possible the prior owner just did a full RM performance upgrade, as I have a RM intake and exhaust too. It looks like no too many people have the RM springs. Any ideas on rates? Is there any way to know for sure what I've got?

 

[Honcho]

Just an update in case anyone else ever needs the info. The springs are RM Racing. Drop is 1.5". Spring Rates (they are progressive):

Front Start: 170 lb/in
Front End: 250 lb/in

Rear Start: 150 lb/in
Rear End: 308 lb/in

 

[Honcho]

Update 2: Here are pics. So are they RM or Comptech?

 

[Honcho]

Anyone?

 

[ChopsJazz]

From these pics they appear to be the CT springs. I had them on my '91. They lowered the car nicely, but camber became a problem, but they rode hard as hell. And this is coming from a guy who currently has a Type-R set-up!

 

[Big_D]

Its hard to tell by looking at them.

Spring Rate info:

http://www.daliracing.com/v666-5/catalog/suspension/more_springs_matrix.cfm

 

[Honcho]

Thanks for chiming in, guys. I ruled out Comptechs because I was told that they were linear rate springs. As you can see, both my F and R springs are progressive wound. That plus the grey color makes me think RM (and the fact that the PO seems to had a shopping spree at RM). But, I could be wrong... It kills me not knowing what springs I have!

 

[Honcho]

Final resolution. I went out and measured my ground clearance per the service manual. I got 200mm to the center of the rear toe link bolt. According the service manual, that is 23mm lower than stock, or about 0.9 inches. This means they must be Comptech Sport Springs because they are advertised at about 1 inch drop. The RM springs are 1.5 inches. So, once again LarryB was right. I will e-mail CT and get the rates and report back here.

 

[Honcho]

Final report. The CT Sport spring rates (progressive) are:

Front: 150 - 200 lb

Rear: 150 - 250 lb

 

[whiteNSXs]

From these pics they appear to be the CT springs. I had them on my '91. They lowered the car nicely, but camber became a problem, but they rode hard as hell. And this is coming from a guy who currently has a Type-R set-up!

I also had the CT sport springs before. Like Ken said, they are bone jarring hard on the street. I think even my teeth felt the stiffness. I soon changed to Eibach and they are much nicer to my spines.
Steve

 

[Honcho]

I also had the CT sport springs before. Like Ken said, they are bone jarring hard on the street. I think even my teeth felt the stiffness. I soon changed to Eibach and they are much nicer to my spines.
Steve

That's strange, Steve, given the starting rates of 150 F and 150 R. Those are softer than even OEM! My car rides very nicely and feels quite comfortable. However, when I hit a big bump or (yikes) a deep pothole the shock is a spine-buster. I always thought it was due to my Konis, which have almost double the comrpession stiffness of a OEM shock... I also get terrible coil slap from these springs. I wish I could scrounge up a set of the OEM spring silencers, since I don't think the Tein ones will cover enough coils...