Any MAP over 60KPa is causing knock, but why?
Thread Starter
Registered User
Joined: Feb 2002
Posts: 1,106
From: Toledo, Ohio USA
Any MAP over 60KPa is causing knock, but why?
Ok got a tune from PCM4Less for a 94.
Anyhow it has LE Heads, Joe O cam on a 381 Bottom. Loaded the tune up, BLMs are split a little and the Left bank keeps rising to the 160 point.
I'm not really concerned about that bceause I know how to fix that, just about the knock that occurs every time the motor is over 60KPa.
It has a sufficient fuel setup and is running 94 Octane on a SCR of 11:1...
Any help would be greatly appreciated, thanks.
Anyhow it has LE Heads, Joe O cam on a 381 Bottom. Loaded the tune up, BLMs are split a little and the Left bank keeps rising to the 160 point.
I'm not really concerned about that bceause I know how to fix that, just about the knock that occurs every time the motor is over 60KPa.
It has a sufficient fuel setup and is running 94 Octane on a SCR of 11:1...
Any help would be greatly appreciated, thanks.
Registered User
Joined: Oct 2002
Posts: 1,639
From: Toledo, OH
Here is the datamaster log of a run with 15* of timing taken out from the original tune, im down to below 24* of advance across the board and its still knocking.
http://www.geocities.com/jonaddis842...degreesout.uni
What I know for sure is that when I took out 5-10* I could hear it spark knocking for sure. It either went away a little bit, or got fainter when I went 15* out but im 90% sure its still there.
http://www.geocities.com/jonaddis842...degreesout.uni
What I know for sure is that when I took out 5-10* I could hear it spark knocking for sure. It either went away a little bit, or got fainter when I went 15* out but im 90% sure its still there.
Thread
Thread Starter
Forum
Replies
Last Post