Postby Marko » 03 Sep 2009 19:29
its better to use a good live axle setup than a bad IRS.
i don't know on what is this IRS based on , but if i had to build a rear suspension i would cost a lot more than 2500 euro.
count in that the quaife diff is 600 euro.
-halfshafts are 99.9% from a some stock car because machining and heat treatment to produce custom made is very high
bushes, bolts,washers,nuts , wheelbearings (around 50 euro per piece , 2 per wheel) , disc brakes, calipers
i dont know if the shocks and springs are in the price as well.
so considering the ammount of "stuff you get" this is cheap.
if you calculate it by the weight of material per dollar , thats still cheap.
on the other hand , considering the ammount of work ( design, knowledge) needed to build a suspension.
and in "build a suspension" i mean.
analysis of the front suspension and its characteristics as in:
-roll centar location
-camber,castor,toe curves trough roll, pitch and steer.
-suspension and bush stiffnes
-spring stiffness and natual frequencies
-shock absorber bump and rebound, their curves.
and then use that data and cornerweights of the car,
to build all that data again for the rear.
and design and fabricate the strong enough and stiff enough suspension that could pass MOT or scruteneering for a racetrack or a race.
if i saw 1 rod end stressed in bending on that as a scruteneer i wouldn't let you on the track ,no matter how thick it was.
