Is it a bad idea to
i'm sure the point they're trying to make has more to do with harmonic balancing-...
in some higher horsepowered cars, the crankshaft can vibrate and a harmonic balancer dampens out the vibrations-... it's not always the wisest idea to have a lightweight flywheel and an undampened underdrive pulley because the vibrations have no way being subdued. one or the other is a better alternative-... with that being said, many beta1/2 members on here (including myself) have both installed and have not had any issues.
NOW, some of the turbo'd betas who had both the findanza and obx pullies,have had issues w/ crankwalk or oil pumps shattering (i think those were 300+hp motors).
in conclusion, depending on how reliable you want your set up to be, LEAVE the harmonic balancer and go with a lighter flywheel. a chromoly flywheel isn't as lightas aluminum but will dampen more vibrations than an aluminum flywheel-... i'm sure an aluminum flywheel will be more than fine for a street car.
in some higher horsepowered cars, the crankshaft can vibrate and a harmonic balancer dampens out the vibrations-... it's not always the wisest idea to have a lightweight flywheel and an undampened underdrive pulley because the vibrations have no way being subdued. one or the other is a better alternative-... with that being said, many beta1/2 members on here (including myself) have both installed and have not had any issues.
NOW, some of the turbo'd betas who had both the findanza and obx pullies,have had issues w/ crankwalk or oil pumps shattering (i think those were 300+hp motors).
in conclusion, depending on how reliable you want your set up to be, LEAVE the harmonic balancer and go with a lighter flywheel. a chromoly flywheel isn't as lightas aluminum but will dampen more vibrations than an aluminum flywheel-... i'm sure an aluminum flywheel will be more than fine for a street car.



