It seems I have TEIN type NR:
TYPE NR
Street spec
Well Balance
Master
DNN65-12531
ECR33-R
20012
From the TEIN site:
Type NR Kit includes:
Fixed Rate damper X 4, S-TECH Spring X 4
Detailed handbook, 90 mm measuring gauge, damper adjustment tool
C ring height adjustment equipment (4 levels) fixed damper X 4
C RING TYPE HEIGHT ADJUSTMENT MECHANISM
The C Ring Type height adjustment mechanism enables a wide range of driving variations depending on the situation, by changing the setting for weight balance, corner weight.
Base setting is 2nd from top. The position for the 4 steps are defined based on the model data and putting in consideration the lever ratio, is set to change by 10mm. However, if set in a position other than the base position, there is a possibility for spring space to occur or other problems from pre-load over.
http://www.tein.co.jp/nrdampe.html
So I can't change the dampening, but I can adjust the height between 4 levels using C ring height adjustment equipment (which I don't have).
Does this seem right? Are there any guides/instructions out there as to how to adjust the height?
John