Engine knocking sound above 4000 RPM

[snailpower]

my engine have knocking sound above 4k.
AEM AFR gauge show 10 = 10:1

is it too less fuel?

[Elevationtc]

my engine have knocking sound above 4k.
AEM AFR gauge show 10 = 10:1

is it too less fuel?
[/quote


thats extreamly rich

[snailpower]

thats extreamly rich

I should reduce? but my engine got knocking sound. normally if too less fuel then got knocking.
i using octane 98 fuel

[project03r/t]

Pull some ignition timing and you will get rid of that knock. You should tune your car for ~11:1 under WOT /boost. but to do that properly on a boosted car you need to pull some timing.

[snailpower]

Pull some ignition timing and you will get rid of that knock. You should tune your car for ~11:1 under WOT /boost. but to do that properly on a boosted car you need to pull some timing.

what is mean pull ignition? increase the number or decrease the num at 4000 RPM?
anyway, how is my ignition map, ok?

[Elevationtc]

No, expecially depending on ur base timing! 

U would pull a little more timing. And seriously lean out the fuel!

Start of at -.75 degree per psi.  get the cars fuel right 11.5-11.8 and start adding in timing!