What are acceptable levels of spark retard and knock count when viewed in Datamaster.

I've seen as much as 5 degrees being pulled - I believe I have the limit set to 5 degrees so no more than that can come out.

How much does pulled timing affect HP - is there a rough estimate on what 1 degree of timing = hp?

 

Knock count means nothing. Knock retard on the other hand has a direct correlation to HP loss. I don't think there is an equation that will net you a HP loss from knock retard, but if timing is being pulled, HP is lost. Idealy, you want 0 knock retard. Alot of people just tune out knock retard entirely in the PCM(me included), however you definitely want to make sure it is false knock before you program it out.

 

My scan tool is showing 19 degrees of knock retard at WOT! I have the Madz28 tune and he desenitized the KS. I'm going to try the LT4 KM.

 

You should be showing NO knock retard if madz28 programmed it out...

 

Have do I know if he programmed it out??? It's sure showing on my scantool...

 

It's possible he only programmed out some, and only in certain RPM ranges. Probably want to contact Madz28 to find out.

 

He said 19 on the scantool meant 1.9 degrees because it is impossible for the PCM to retard timing that much.

 

That sounds about right. It is most likely the headers causing the knock, assuming no enigne problems. Definitely get an LT4 knock module and see what happens.

 

I'm seing some knock too but i got heads cc306 lt headers and at that time cut out opened. I bet the cut out had something to do. to program out knock i should just put the max knock retard to 0 right?!?!?!

 

correct. For both PE and non PE tables