HOW MUCH POWER IS A LIGHTWEIGHT FLYWHEEL WORTH? DOES A LIGHTWEIGHT FLYWHEEL ADD ANY POWER? CAN A FLEXPLATE MAKE MORE POWER THAN A FLYWHEEL? WHAT IS MOMENT OF INERTIA? WHY DOES SIZE MATTER MORE THAN WEIGHT ON A FLYWHEEL? CAN I ADD POWER TO MY LS WITH A LIGHTWEIGHT FLYWHEEL? JUNKYARD 4.8L POWER MODS. HOW TO MAKE MORE CHEAP LS POWER. HOW MUCH DOES A STEEL FLYWHEEL WEIGH? HOW MUCH DOES A STEEL FLEXPLATE WEIGH? CHECK OUT THIS TEST WHERE I COMPARED A STEEL FLYWHEEL AND STEEL DRIVE PLATE TO A LIGHTWEIGHT FLEXPLATE AND ALUMINUM DRIVE PLATE ON THE DYNO ON A BTR-CAMMED, JUNKYARD 4.8L LS.