Figured out how to log knock on a stock ECU. Log is all over the place under boost. Pulled timing on my already timing-pulled map and it got a little better. So now I'm reeeally down on timing and still getting spikes. Starting to think I should ignore that sensor, which of course Nissan also does above 4k on a turbo car. There was a wasted hour.

Also ran a compression test just to see what's up. 165psi across the board, warm. Plugs look nice. Carbon on the outer ring, completely clean everywhere else, insulator slightly pink. Don't know what that last part means. Maybe Shell's super secret 93 octane mix?

So what's up, Nissan Tech? Are Longfellow and I the only people who work on cars on the weekend?