domyz

iTrader: (6)

Make sure downpipe/exhaust isn't touching anything.
It could be related to timing, could you post:
timing map
EGR enabled advance map
ignition trim vs air temp map


or a log of this happening with timing and AFR logged

fireroasted

iTrader: (3)

I have been following the comments here to see if my knock issues are related to this. I also have the 3 port BCS mounted against the frame rail. Its a Gruppe-S, but I don't recall having any issues this way before my build so I never bothered insulating it. Now I am getting desperate for clues for my knock. Are the folks here that have had knock logging and then padded the BCS and the knock went logging went away. I am not seeing that evidence in the posts. Did I miss something.

I do not have a tephra ROM, but I do have this table, but shown in a %. Any comments here? Your load kpa I get, but these percents I don't.

Raptord

iTrader: (10)

The %'s are load

fireroasted

iTrader: (3)

Really, 48.1 load? As in just 50 load in my logs. If those are not stock values, which I think they are, then I don't know how I would have came up with that at some point.

Raptord, do you know of anyone that solved rampant knock values by insulating the BCS?

domyz

iTrader: (6)

You're right fireroasted, this thread was first about knock, but at some point we talked about BCS clicking noise that is annoying....

Raptord

iTrader: (10)

At a quick glance they look like stock values. Mine is similar.

Howulikemyevo

iTrader: (27)

my downpipe and exhaust dont touch anything. its gotta be something but i cant figure out what causes it. many people in this forum have the same problems but i read on but still nothing is definite. will someone help?

EvocentriK

Why is the thread title "figured it out" ? Read through it all and no one's figured anything out lol. Trying to solve a possible false knock situation on my car that's worsened over the last couple months or so, previously didn't have an issue so I'm thinking whatever's setting it off is real, no idea what though. I've run the car up with DET cans though and the engine is not knocking.

Just getting knock when free revving the engine when stationary (clutch in and clutch out) and when it reaches 70-80-90 load or so and into low boost. Also getting knock on shift and decel, getting 1-2 counts at 10-20 load at <3000 rpm which is really confusing me. It's not the 3-port clicking, unplugged it and made no difference.

My thread is here if anyone's got any ideas: https://www.evolutionm.net/forums/ev...ng-causes.html