When running the datalogger with a coolant temp of *35 my timing is at *20btdc. but it jumps around *5 degrees steadily. At 1500rpm, 5%TPS and *100 coolant temp my timing maxs at the preset *40btdc. Im pretty sure my chain has some slack in it. But isnt the timing pretty retard for that temp and load? I only run 93octane b/c thats just a pet peeve. Im not recording any knock except at start-up i had 2 knock counts. Are them 2 counts from the starter?

 

Timing will jump at idle in order to stabilize idle.

40 degrees of timing sounds like enough to me.

Ignore the knock on startup, it's normal, and is likely from the starter.

 

Thanks Man!