Jb Or Npc Clutch For 32 Gtr
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By joshuaho96 · Posted
Dunno what to tell you, when I look at it on Consult I can see this warmup timing map kicking in around 40C coolant temp and it sticks around for a while: At part throttle on the normal base timing map it peaks around ~43 degrees of timing or something like that, this warmup timing map drops it to like 12-15 degrees. -
I don't think that's what you're seeing. Something else doing that. The only time I've seen it get so retarded is when it's trying to control idle (in which case we're not talking about mapped timing tagets anyway) and when there is an extreme coolant temperature sensor fault. The RB26 ECU is essentially the same as the 20 ECU and I knew that ging inside out. There is no facility for it to retard that heavily on cold start. The OEMs never used to do it back then. I mean, shit, the catalyst is abotu 3 miles down the exhaust anyway. Early light-off was just a twinkle in some EPA arsehole's eye back then, not a regular engine control strategy. -
I must preface my comments with a general expression of ignorance. I have no specific knowledge of these NA automtaic things. I can only assume that the "steering wheel button" is for enabling the tiptronic controls. Wierd that it would even need/want a button for that... But anyway.... Was the car previously tiptronic? Did you put a new cluster in as part of all this?
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By joshuaho96 · Posted
Regardless, it doesn't seem wise especially on RBs to actually chase MBT. Timing scatter is the big one on stock CAS, even if that's fixed overshoot is worse than undershoot. -
It's all about reducing the overall output. Reduce the source of it, you have wayyyy less to deal with in every other step and trick you play with. It's why something like a modern vehicle, so VW, Audi etc, there's thousands of tables for the ECU to calculate what it should be doing with the engine. Why would you NOT reduce emissions the most effective way possible, when it has very minimal tradeoff, AND manufacturers are always struggling to meet the current standards.
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