We are using ra60 struts. I never drove it with the originals so I cant compare.
Ill try and give you the right details anyway.
You need.
Ra60 struts with steering arms t18 and sigma ones wont work
Sigma 1 lower control arms. These are from the earliest sigmas. They are a one piece control arm. The later ones have a bolt on ball joint. These will not fit exactly, you will need to reduce the length of the crush tube and bushes. You will also need to angle grind some material off the rear of the arms where they attach to the car else they will catch and not move freely.
Use the t18 strut top. Springs might be tricky. The standard t18 springs taper down to the bottom perch. You need a spring which fits in the top original t18 spring holder and doesnt taper down too small so that it will still fit in the lower ra60 holder. We just cut the taper part of the standard t18 spring as a temporary fix.
Dont even bother trying to make ra60 springs and top holders fit, it wont work!!!
The brakes are good enough for the racing we do. There isnt that much hard braking though, only from about 70 to 30 once a lap is about the hardest work they get. Never seen fade however. They are really touchy with the standard booster. Due to the camber expect tire wear, but handling should be improved. The problem with camber is that it will also reducing braking due to the tire angle. Really quite easy to lock them on our car, that might be some what do to my lousy driving skills as I find I am getting better.
There are a few other miscellaneous things you will have to do e.g. drilling new sway bar holes in the arm, but overall if you use a bit of logic its not too hard a task!
Thu, 23 June 2005 11:45
