S M R
06-03-2004, 04:27 PM
Not too sure if this should be in the LT1 tech section or not... sorry if it should.
I'm in the process of tuning my car. Before I started I had a modest tune for my mods that was pretty good. I got the dyno numbers in my sig running a max of 32* at 4000+ rpms and some random knock retard... which turned out to be fuel related.
After a bunch of playing around with fuel and timing I have emliminated all knock retard and have been increasing my timing as much as I can. I currently have 42* advance at 5000~6400 with no knock. Is this too much? After reading some posts I see that most people don't have thier timing that high and others have knock issues with timing above 32*.
So my question is, is 42* timing in the 5000+ RPM area good if it can handle it? Also, if it can take some more timing will it help? Is there a point where more timing (with out knock) will hurt power?
My motor runs very strong up top and show no signs of any problems... There is a noticable "seat of the pants" increase in power come 5000rpm that just keeps going to 6400. I just want to make sure I don't kill the motor going over board with timing :)
I'm in the process of tuning my car. Before I started I had a modest tune for my mods that was pretty good. I got the dyno numbers in my sig running a max of 32* at 4000+ rpms and some random knock retard... which turned out to be fuel related.
After a bunch of playing around with fuel and timing I have emliminated all knock retard and have been increasing my timing as much as I can. I currently have 42* advance at 5000~6400 with no knock. Is this too much? After reading some posts I see that most people don't have thier timing that high and others have knock issues with timing above 32*.
So my question is, is 42* timing in the 5000+ RPM area good if it can handle it? Also, if it can take some more timing will it help? Is there a point where more timing (with out knock) will hurt power?
My motor runs very strong up top and show no signs of any problems... There is a noticable "seat of the pants" increase in power come 5000rpm that just keeps going to 6400. I just want to make sure I don't kill the motor going over board with timing :)