I just purchased a stock flywheel and I'm trying to determine wheather it's 88-89 or 90 91. Does anyone know a way to determine which one I have(number of teeth, diameter of contact area)? Any input would be appreaciated as I'm going to have it lightened and I want to make sure it's the right one. My car is a 90 crx si and the clutch I'm mating the flywheel with is a 90-91 exedy clutch. Thanks.

 

Where did you purchase it from? How do you know it's the right one at all? Stock motor and trans?

 

90-91 surface area is 212mm 88-89 is 200mm...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crxgator &raquo;</TD></TR><TR><TD CLASS="quote">90-91 surface area is 212mm 88-89 is 200mm...</TD></TR></TABLE>

Is that from the center out or straight across?

 

i would think surface area means area and not radius or diameter. might try search seems like i've read this before.

 

The flywheel I have has a 212 mm contact patch and the clutch I have is also 212mm(exedy 08801b) which leads me to believe that it's a 90-91 flywheel.