just wondering if theyr is any diff. in the motor it self. like cams manifolds that type of thing

 

i know that automatic b16 cams are less aggressive than manual b16 cams.

 

i use to run auto B16a motor with 5spd tranny and sucked!

 

i have a auto ZC with my si tranny, but since i have never had one before i can't really comment on it... but it runs nice!

 

My ZC was originally an Auto.

 

is there any diff than man.

 

As far as I know Auto and Manual ZCs are the same.

There is a difference in Auto and Manual B16s.

 

engines are the same..
what changes are the ECU Fuel map, ignition timing, and other sensor reading/outputs....

 

my d16y8 was originally from an auto EX. I struggled for a month while I tried to figure out why it wouldn't idle right....Now I know the manifold was different so I traded my 89 si seats for a manual intake. Runs great now!

 

I also found out that there is no dual valvesprings on the intake side just single springs all the way around.

 

im not sure if they have any hp differences but one thing i know that auto engines are in much better condition than manuals because usually manuals have had more abuse. not in every case but most.