Base timing question*edited*



Ok so i noticed sumthing wird with my timing after i had took off my timing cover and then reinstalled it. Ofcourse this means that the CAS came off. I reinstalled it and began to adjust timing. Weird thing is when i retard the CAS all the way it only goes down to about 22 degrees and thats the most retard i can get out of it?! isnt the stock setting 15 for auto’s and 20 for 5sp? My car is an auto to manual swap and im not sure if i still have the auto ecu or a 5spd.AFter couple attempts at getting the timing to 20 i have noticed right afte ri set it and go out for a spin it pretty much fully advances itself. And no the cas is not moving that s.o.b is on there good.

I’ve been told that on most DIS cars u have to tell the computer that ur goin to set the timing, u usualy do this by jumping 2 pins in the diagnostic port, one will be like IGN and the other would be either to ground or to 12v’s from another pin.

My question is does this apply to skylines aswell? If so how do u “tell” the computer your going to set timing

I found a site explaining how to set base timing on an mr. Not a skyline but it illustrates what im trying to explain about bridging connections in the diagnostic port.
http://mr2.noegruts.com/ignition/timing.htm

As far as I know, I don’t have to mess with the ECU to change the timing on my 240sx…? Don’t havea clue as to why you can’t retard it past 22 degrees though. I know with my 240sx 20 degrees is optimal and there is a little play back and forth + or - 2 degrees. Maybe there is an issue with your distributor? Sorry I don’t have any direct answers as I have no experience with Skylines and limited experience with my own ride :oops:

Hope I spark a few ideas

man you are having some troubles. As far as I know nissan does not need to know you are setting timing but can be wrong. Ive never set timing on a RB20 cuz we throw those in the trash and swap in either RB25/26 so Ive never even had a 20 in my garage. I base time RB25’s and RB26’s without having to change any advance like your talking about with reaching my specific timing so I wonder why you cant retard your car. Give me a call sometime and just come over. We will see what is up.