flywheel comparsion

[1.5 liter]

does anybody know whats the difference between a 88 dx flywheel and a 91 si flywheel? i need this info cuz im changing my dx tranny to a 91 si tranny and i need to know if i need a si flywheel.
thanks

[RedRacerCivic]

The 88 has a tiny 190mm/7.5 inches clutch disk size and the 91 has 212mm/ 8-3/8 inches clutch disk size. The 88 has 21 splines and the 91 has 20 splines. I believe that you will need to get a 89-91 flywheel and clutch to match the 1991 tranny because the splines on the 88 will not work..

Correct me if I am wrong.

[Juicy05]

Yeah the 88 and the 91 one wont match up for shit, the splines are different, i found this out when i bought my stage 2 clutch and flywheel from my friend who owns an 88. So they are NOT compatible.........

[itechengineers]

Originally Posted by RedRacerCivic

The 88 has a tiny 190mm/7.5 inches clutch disk size and the 91 has 212mm/ 8-3/8 inches clutch disk size. The 88 has 21 splines and the 91 has 20 splines. I believe that you will need to get a 89-91 flywheel and clutch to match the 1991 tranny because the splines on the 88 will not work..

Correct me if I am wrong.

that counds correct! = you need the 89 to 91 flywheel setup!

[GTA]

you can use the 88 flywheel but only if you get an 89 clutch. cause the surface area of the clutches are the same in 88-89 (200mm). If you want a clutch that has more surface are get a 90-91 flywheel and it will be 212mm