Well yesterday I went to take my buddy for a ride and was wanting him to watch the knock and to log it because I made a nitrous run the day before and it didn't feel like it did previously. So I take him for a ride and go from a 45 jump and spray it. He watches teh knock and he said it hit 1.49 degrees and then started slowly going down. I'm on a 200 shot and this was on PUMP gas. So I'm thinkin it's either time to lower the jets a little or only spray on ras gas? What can I do? Or is this not enough knock to worry about?

 

Are you pulling any timing on that 200 shot? What plugs are you running and at what gap?

Put it on a dyno with a wideband if you haven't already....

 

Have you logged any runs off the bottle? It could be false knock. 1.49 is pretty low. A wideband log would tell you for sure.

 

100 octain would do the trick for ya .

My car was pulling almost 3 degrees on the spray untill i used the 100 and the knock went away .