how do i choose a clutch!

how do i choose a clutch for my car. do i go by the engine. or do i go by the tranny.
b16-engine
b18-tranny

I want to say tranny just b/c that is what the clutch is for... the tranny. The engine just makes the power to push the tranny. And seeing that the clutch is part of the whole transmission set-up it should be for that.

If I'm wrong though someone correct me. 99% sure that it's tranny though.

nitebeest : that is right the cluch and the fly wheel must be for the tranny.

you can use the b18 flywheel on the b16 ;)