Need help with E-Maxx + Ofna 1/8 shocks

[justchil]

Hey guys I've been having a lot of trouble trying to locate stiffer springs for these shocks other than what Ofna has.

These are Ofna Ultra LX Buggy rear 13mm shocks... the springs are 20.5mm (.75") outside diameter and 88mm (3.5") long. I have the stiffest Ofna offers and they just arent stiff enough for my heavy E-Maxx.

Perhaps I should just get 4 more of these shocks and call it a day? They are pretty cheap so it's not a huge deal... just trying to learn as I go.

Any suspension guru's that can help me out? I have modified the piston holes to be a bit larger which helped a lot. I'm running 70wt but might try thicker if I can find some springs to help out. My main issue is not getting enough rebound/stiffness out of the suspension.