My combs were glued very slightly. Nothing a little alchy and the back of a screw driver didn't take care of.
I have Denso 550cc injectors, Supra pump (hotwired) and the IPO dual feed fuel system. Right now, my AFC is set to around the -36 to the -37 range.
I have looked back on quite a few logs, and noticed one major detail about my knock. It ALWAYS, (and I mean always) starts at 33 degrees TA. I'de never really paid alot of attention to my timing before, now I am. Every single run, 02's are at .94 -.96, duel, all the way up to about 5k. My timing starts at about 18, then goes up. When it hits 33, (and this is each and every time) I get knock. Then down comes the timing. I'm talking knock over 10. You can see my log up a few posts. The only way I can stop the knock is to add fuel, which runs it rich.
So how can I stop the ECU from advancing the timing so much?? My base timing is right where it should be. I'm going to try this gutted MAF trick, mainly for the added flow/spool up. But if it lowers my timing enough to get it to stay below 33, that would be perfect.
I still don't see how this is going to effect the timing at all, but I'll try anything for fun.
