92bb2

I've got a b18a that I'm putting a b18b intake manifold and am looking into putting b18b cams in it (supossedly the only difference between b18a and b18b).
Are the automatic b18b cams any more or less aggresive?? I have a set of each and am curious to know if one is different than the other.

Ruben19

waste of time

92bb2

between auto and manual cams or between b18a and b18b cams

92bb2

bump for curiosity

Ruben19

you wont gain any power if that what you looking for.

92bb2

From which? the b18a to b18b cams or the b18b auto to b18b 5spd cams?
this is what I'm most concerned about. Curiosity is really why I asked if the auto cams were different from the 5spd.

1SicLS

i dont think the auto to manual cams are different just the ecu has the power diff. but i could be wrong

IowayRUlz

iTrader: (5)

What year B18A1 do you have? 92-01 B18A/B had the same cam profiles, the 10hp difference between 90-91 and 92-93 was the cams. I think later differences were compression, intake manifold.

tilegend

the ECU, exhaust manifold, and cams were also different from 90-91 compared to the 92-93 and the difference isn't only from the cams.


anyways here's the specs:


B18A1 (90-91)

Camshaft specs:
IN: 1.3160
EX: 1.3083

B18A1 (92-93) B18B1 (94-95)

Camshaft specs:
IN: 1.3274
EX: 1.3083

B18B (96-01)

Camshaft Specs:
IN: 1.3274
EX 1.3200

IowayRUlz

iTrader: (5)

What's different about the ecu other than a change to OBD-1? More aggresive timing? I thought the only difference in the exhaust manifolds was the length?

tilegend

not sure on the ECU specs but it is changed to OBD1...

as for the exhaust manifold... the 90-91 is a 4-1, single "A" pipe (downpipe)
92-93 is a 4-2-1, double "A" pipe

and yes the length of the pipe is also different.

MHBb16CRX

good info.