Does the crank pulley on the B18C5 without modification to the frame rail fit on a 1990 Dx hatch? Just trying to determine which pulley to buy. I want to retain the factory a/c and obviously the alternator but I want a stock looking pulley. Just wondering if there is an alternative if it doesn't fit without denting in the frame rail.

 

Which mount kit are you using?

 

will be using a Hasport mount kit

 

It'll fit, but the alternator pulley may touch, use the shortest belt you can.

 

How is the clearance with the b18c5 crank pulley and the OEM D-series Civic/CRX cross member radius rod?

 

It depends on the mounts you use, from what I've been told. Underdrive pulley is a better bet for B-swaps with a/c.

 

Not good. I have HaSport mounts and it'll hit. I ended up having a set of '92 Accord curved radius rods custom machined, much better clearance now.

 

I just measured. My setup clears just fine.

Here are the specs:

Mounts: Hasport 2011-2012 (latest design revision), click for image
block: b18c
crank pulley: b18c5, unmodified
clearance between bottom of crank pulley & D-CRX oem radius rod with suspension @ full compression (shock removed, everything else connected, upper control arm fully compressed against chassis): about 0.275"

I personally feel this is sufficient clearance. THe upper control arm should never bottom out against the chassis. So the clearance I measured is the "theoretical" minimum (using my setup), assuming the upper control arm can bottom out against the chassis.