So in oregon i was able to take a 3,000RPM shift and only about 10* of KR or so on the 1-2 shift. At WOT it was 20* quickly then would taper down till the 2-3 shift.
now I only have to be at 2500RPM and get 15-20 degrees of KR
Keep in mind I ran a 15.2 with 20* of KR as well...I happened to have the scantool on for every run.
We checked the fuel pressure with Boosty'* Gauge I think, it showed 50psi or so, real healthy according to SSEiMatt93.....have to ask him the exact numbers at idle and WOT....Obviously I replaced the fuel filter recently as well. I also just put a high flow cat on several months ago.
And I am running a K&N RX4750 and this is with a 2.3" Pulley.
So I got home tonight with the newly aquired scantool, and just around town I had it on...the 1-2 shift says 18-20 degrees of KR even at 2500RPM and 0 pounds of boost
(top of the gauge).......WTF is up with that I ask myself? Well perhaps my exhaust system is clogged. The muffler needs changed or the manifolds are cracked so bad they are giving KR...I really doubt though I am outflowing the manifolds at 2500RPM shifts......
I have a spare set of manifolds ready to be ported when I find someone that can weld and port them for me.....so far no luck there. I suppose I could replace the muffler as well.
Could this possibly be a Flaky PCM? what the hell else would cause it?
My next step is to put the 2.53 pulley back on to see if the KR is the same, I imagine it will be since I am recording those numbers at 0lbs of boost.
Really need ideas here lol. Pulling my hair out.