Why Is My Timing Being Pulled So Much - 7 Deg

[Corman12345]

Allright, I just did the EVOIII 16g swap and ported everything. Now my timing retards like a mo fo at wot. at 4K its 7 degrees and it jumps up to about 10 degrees at 5500 rpm and stays there. I have played with a/f mixture with no result and am currently at .94v-.96v. I have also built an airbox and air temp is down to 35 degrees. Base timing is 5 degrees. Could the ecu be picking up knock from something else. I don't have any boost leaks either. Any Idears fellas??


EVOIII 16G
S-AFC
Walbro 255
650 cc injectors
NGK 7es
9.3mm wires
Injen intake,
Apexi N-1 exhaust
Ported 02 and ext manifold

 

[btrux06]

does your valves tick loud, that could be picked up as false knock and cause the timing to be pulled alot, or pump may have gone bad or other fuel problem , clogged filter

 

[pickens]

man, I just logged the same thing.......NEGATIVE timing of -3. Read my post in the problem diagnostic forum.