I have a small problem that maybe someone can help me with.

I have a 97 r that I have road raced the last 5 years. I have run the car in several different classes/configurations over these seasons using various parts etc, to fit class rules.

I originally changed out the R valve springs for Mugen ones and then 2 seasons ago I changed these for some Toda springs when I was running some of my sponsors Toda B cams.

The stock cams were put back in last year but I have just realised that I can only find my original R springs and I don't know what I have in my head. Somewhere along the way I have lost a set of springs and I would like to find out if my Mugen springs were put back or if they are the Toda ones.

Does anyone on here knows the lbs/in measurement for the Mugen and the Toda springs?

Thanks so much.

Victor Penner