Epas rack stiffness?

[plees]

With the EPAS rack only being held on via two bolts instead of the 4 found on a hydraulic rack, would anyone say there’s a reduction in stiffness from that point.

I have had the wishbones plated and the subframe stiffened so seems silly to sacrifice rigidity here.

 

[Brigsy]

No bushes on the epas rack so probably stiffer rigid mounted.

 

[kurai]

I have an epas rack (270LocktoLock), and honestly I don't feel it not being stiff. I use it on my track toy, equipped with full AST 5100 suspension, lsd, sticky tires, shorter final drive, strong engine with ITBs and surely it does not feel flimsy.
I usually use it with very little aid from electric motor.

 

[plees]

Cheers chaps! Just the two bolt mounting compared to the 4 of the standard rack.

 

[kurai]

Cheers chaps! Just the two bolt mounting compared to the 4 of the standard rack.

Don't focus on bolt count. Standard use 4 bolts because it use 2x 2bolt clamps to have the rack and subframe separated by rubber bushes.. that's why 4bolt clamps.
In fact, you can upgrade those bushes with stiffer powerflex units.
Steering rack does not work on twisting or anithing else.. it does just an axial push pulll job. So its not in danger of being ripped of the subframe or get into weird twisting..