are they the same?! the flywheels are different OD and weights, but the rotors are the same weight.

they DO have different part numbers.

could using an N/A on a turbo motor/flywheel cause vibration?

 

they are the same. they DO NOT have different part numbers

 

crap, was going by the mazdatrix part numbers. my imbalance must lie elsewhere then.

 

there are s4 and s5 part number differences...just not NA and turbo part number differences

 

ah..heres one thing i noticed tho, i may have a GSL-SE rear counterweight which does posses a different part number.

however i used that counterweight on this motor before with NO vibration problems. the only things changed are from an N/A rb flywheel to a turbo ACT flywheel, as well as a mystery clutch disk and JDM transmission.

it vibrates with the clutch IN or in neutral OR in gear. and only over 6,000rpm.


:edit: http://www.mazdatrix.com/faq/Rcounterweights.htm are the numbers the actual weights of the counterweights?

if i do in fact have an older 13B weight, how come i didnt have a vibration with the other flywheel/clutch/trans setup?

 

did more digging, the older 13b does indeed have heavier rotors, sent an email to mazdatrix to see if they have on record which weight i purchased a while back.

HOPEFULLY thats what it is!


(still dreading dropping the trans..lol)

 

on a hunch went and took off the clutch fan, vibration still there :[ so now i wait and find out if its my mistake or a parts mistake.