Delrin and aluminium bushes

[Yaninnya]

In the past I have contact only with polyurethane and nylon bushes. How hard are delrin bushes in comparsion with nylon bushes? And how harsher is ride with them?
Also how harsh is ride with aluminium diff mount and rear subframe bushes?
Cheers,
Jan

[Taffy]

Yes they're stiffer but they stop the deflection better so suspension geometry stays in the position you want it to for longer and for want of a better explanation accept more weight before deflecting, a definite upgrade for diffs and suspension bushes if you are on track

[Yaninnya]

Yes they're stiffer

They are stiffer than nylon? Did I understand right? And how harsh is ride with aluminium rear beam and diff mountings?
Jan

[dibdab]

Aluminium bushes cause a hard ride, not recommended for road use but fantastic for track use.

[Taffy]

Yes they make the ride hard, not ideal for a road car but as mentioned superb on track

[Yaninnya]

Yes they make the ride hard, not ideal for a road car but as mentioned superb on track

Hard? You mean vibrations and noise from diff are quite noticeable?
Cheers,
Jan

[Gleb]

Depending on your setup, they may be too hard even for the track, I have used E30 M3 ones
And ix for engine mounts, works great for me.