I am swapping a b20b into my 90 crx dx. I am planning on using a p75 ecu. can i use the stock b20 intake manifold of do i have to use an integra manifold. One other question i have is i am using a hydro b16 tranny should i buy the clutch and flywheel for a b16 or b20 or does it matter. any help is appreciated.

 

the b20 im is too large and tall. obd1 ls intake manifold is on the right.



get a clutch/flywheel for a b16.

 

i've alway's known that the b20 intake manifold was too big for swaps, but damn....i never saw a side to side comparrison. thats quite the difference.

 

flywheel does not matter, all b series will work. If you question is which OEM flywheel is lighter, i don't know.

for clutch the are the same tq rating. ITR clutch holds a tad bit more tq. Just get an exedy sport full disk clutch and be done with it.