Howdy!

I have a 1988 CRX Si. Can I use an '89-91 flywheel? It seems that AASCO is the only company that makes an aftermarket flywheel for the 1988. Can anybody confirm this?? I really need to make this decision ASAP. Thanks

 

88 and 89 Si flywheels are the same - you can use 89 flywheel - you need to use 88 clutch disc to fit the 88 transmission - 90-91 flywheel will not work with 88 or 89 clutch

 

Thank you sir.

 

Back up a sec, I think you may be incorrect here.

I think you can use any 88-91 flywheel, the 88 is smallest, 89 is the next up, and 90 and 91 are the biggest. You should be able to use any clutch with a 90 or 91, an 89 requires an 89 or 88 clutch and the 88 flywheel is only big enough for the 88 clutch.

It's all related to the surface size of the flywheel

 

Well my clutch kit is made for an 88, so if I use an 89 flywheel then it should work, right?

 

Yes

Where you run into problems is when you try to use a clutch that's too large for the surface area of the flywheel. Having more flywheel than you need isn't a big deal.

 

I looked up the Fidanza part number on their website and it said 1.6L SOHC. It didnt specify what year though...you think that'll fit?

 

Yea, it'll fit. The 90+ flywheels are considered an "upgrade" by ACT, that's how I got it all figured out when I put an ACT clutch on my 88 civic with an 89 tranny and 88 flywheel.

 

What about the Fidanza flywheel, the website didnt specify what year it is for. All it said was 1.6L SOHC.

 

I meant 90+ flywheels in general, I was just using ACT's explaination as an example.

 

jlicrx is right, you have to use the clutch disc for your tranny. The 88's have a different number of splines on the shaft than the 89-91's.

 

I always get conflicting info on this also. Maybe I put in an 89 clutch instead of an 88.

 

Any flywheel will bolt up, but for the clutch disc you need the right amount of splines to match your tranny shaft.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sporkcrx &raquo;</TD></TR><TR><TD CLASS="quote">Any flywheel will bolt up, but for the clutch disc you need the right amount of splines to match your tranny shaft.</TD></TR></TABLE>

right - any 88-91 flywheel will bolt to the engine - the 88-89 pressure plate will not bolt to 90-91 flywheel - the pressure plate mounting bolt circle is larger on the 90-91 - with 88 disc to fit transmission, you need 88-89 pressure plate (200mm), which means you need 88-89 flywheel - on anything with 89 and up transmission, you can upgrade to the larger 90-91 flywheel and clutch, but with the 21 spline 88 disc, you cannot upgrade to the larger flywheel, since you can't get a larger disc with 21 splines

 

taken from: http://hybrid2.honda-perf.org/tech/zcinfo.html

the 89 DX and the 89,90,91 CRX use the same size shaft and same number of splines on the transmission. The 89 DX clutch disk and pressure plate is smaller in diameter by about one inch than the CRX Si. Although the flywheel is the same diameter on both. As long as you stay with one or the other it should work fine.

as for the 88's they use a different spline count as everyone else has said.

good luck

 

So in conclusion, I can use an 89 flywheel w/ my 1988 ACT clutch kit?