Knock Question - please see powerlogger file

[jcblade]

Help - my son and I were at the track the other day. He had a few good runs. His car has a built motor with methanol injection. Car seems to run strong but always in the middle of the run he gets some knock. I can't tell if it's caused by the shift or something else. Obviously, we are concerned and want to make sure we don't damage anything. What do you think? Should we turn the alky up or something else? Thanks for any advice you can give.

 

[Bescurred]

Turn the boost down a little and see if its still getting the knock. I don't have access to PL on this computer so I can't help you there.