Issue: Balancer read timing versus Tunerpro

**rsicard** · 04-11-2015

Gentlemen:

One last issue. What is seen on the TunerPro screen and what is read off the balancer with a timing light are different numbers. Is there supposed to be any type of correlation between the two or is the TunerPro derived timing an offset value to be added to the balancer read number? Balancer timing on run-in stand (no load) is varying between 0-10 degrees advanced at or off idle. Just wished had a bench signal simulator and output data capture that would capture all the data side by side to see just what the interrelationships, between inputs and outputs, built into the binary file. Please advise. Thanks.

**fastacton** · 04-11-2015

The readings should be the same provided the base timing is set properly on the engine and in the tune and there are no other ignition related issues.

**rsicard** · 04-11-2015

Originally Posted by fastacton

The readings should be the same provided the base timing is set properly on the engine and in the tune and there are no other ignition related issues.

Thanks for the reply. The strobed balancer and TunerPro should read the same number? Hmm. Set the base timing by disconnecting one wire from PCM, adjusting distributor to zero degrees advanced on the balancer with timing light. Reading on TunerPro is different and NOT Zero Degrees advance/retard with one wire STILL disconnected. Don't understand. Must be a specific procedure perhaps to get correlation between the two.

**fastacton** · 04-11-2015

I don't know if they'll be the same with the bypass disconnected, but when reconnected they should be the same.

**rsicard** · 04-12-2015

Originally Posted by fastacton

I don't know if they'll be the same with the bypass disconnected, but when reconnected they should be the same.

That is the exact issue. When reconnecting the bypass, there appears to be no relationship between balancer and TunerPro. Thinking maybe TunerPro timing number is a command to advance timing, greater than some value(?), by the amount displayed in TunerPro. Looks like some OFFSET value. Please advise. Thanks.