Knock on supercharged grandsport
06-14-2018, 12:26 PM
#1
Racer
Thread Starter
Knock on supercharged grandsport
Hey guys,
Teaching myself to tune from the ERM tutorial. Having an issue with knock. Car is a 2013 grand-sport corvette w/ ecs kit and methanol on 93. Thinking it might be false knock but not sure. Never hear the car ping, but see pretty consistent knock with what i feel are pretty conservative timing and fuel settings. Fuel isn't perfect by any stretch but i've played around with it making it richer than what you see in these logs and it didnt make any difference. I have checked the exhaust and while some areas are tight i don't see any signs of anything hitting. I'll include an older log where i had a can of torco in a 1/2 tank. It was a slightly different tune then but still see knock.
Any advice or feedback would be appreciated.
Teaching myself to tune from the ERM tutorial. Having an issue with knock. Car is a 2013 grand-sport corvette w/ ecs kit and methanol on 93. Thinking it might be false knock but not sure. Never hear the car ping, but see pretty consistent knock with what i feel are pretty conservative timing and fuel settings. Fuel isn't perfect by any stretch but i've played around with it making it richer than what you see in these logs and it didnt make any difference. I have checked the exhaust and while some areas are tight i don't see any signs of anything hitting. I'll include an older log where i had a can of torco in a 1/2 tank. It was a slightly different tune then but still see knock.
Any advice or feedback would be appreciated.
The following users liked this post:
1966427 (06-16-2018)
06-17-2018, 05:28 PM
#5
Pro
Phil is a great guy and does excellent work! 
06-17-2018, 09:20 PM
#6
Racer
Thread Starter
Here is latest tune and a long log from tonight. Going to work on the VVE table and see if I can get fuel closer. If anyone else has any more advice id appreciate it.