Inner West Crew Whoretown (toowong/st Lucia/kenmore/indooroopilly And Sometimes Sunnybank?)
By
funkymonkey,
in Queensland
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Probably. But keep in mind that all Joshua was saying that because of things like timing scatter, and many other related and unrelated things, tuning too aggressively should be avoided. Hence why both he and I said that fitting the cat shouldn't cause you to suddenly fall into the danger zone. -
I’m running links ecu and an upgraded crank sensor. So I guess I have less chance of this. -
The stock Nissan CAS gets very messy at high rpm, particularly with bigger cams/springs, and most aftermarket ECUs don't do as good a job of filtering the noise as the OEM ECU somehow manages to do. So you get "scatter" in the timing signals that can be really destructive to the ECU's knowledge of engine position. And so you can get spark firing many degrees early, leading to catastrophic detonation events.
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So you’re saying pretty safe to put back on the high flow. I guess I will lose alittle horse power which is fine. Never heard of timing scatter? My idle has been an issue running rich since I put on a custom intake with smaller pipings so not sure how it will react to the high flow cat also - would add some more back pressure to the system no? Thanks
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I'm pretty sure that HK would only have the same blend all year 'round, but whatever.
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