i made a video how to install mods for minecraft 1.8.1 without get black screen for this mods and with my system you can install one mod or more its how you want. i will add more mods to this system its mean no need to reinstall again. used BlockID 110 to 221 its mean still we have 34 Blocks Free.

IndustrialCraft² 1.15[sound FIX]
BuildCraft 2.2.0
Equivalent Exchange 4.16
Better Than Wolves 2.95
Millenaire 1.6.8
PortalGun V1
WirelessRedstone
TooManyItem
ZanMiniMap
Death Chest
Recipe Book
Timber

All download links in youtube video Description

Links
Part01
www.youtube.com/watch?v=YnHf7KsMicA
Part02
www.youtube.com/watch?v=ZFDMGVAS8vg