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FJR Motorcycle Forums
Technical & Mechanical Problems
Power Commander V w/Autotune Discussion
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<blockquote data-quote="ajpagosa" data-source="post: 1315073" data-attributes="member: 30139"><p>I tend to agree with you there, sort of. It will run OK but it will actually be measurably off in AFR. I base this opinion on tuning cars and other bikes where I had a logging capability or other feedback (like obvious pinging).</p><p></p><p>It has been a while but I did look at the cell values for the various Dynojet maps, and compared the one for no mods (not the zero map, the base map) and for my mods (K&N + TBR) and they were different. Every other bike/car I've had needed to be tuned one way or another for exhaust/intake mods. Oh I have one other mod, the PAIR delete.</p><p></p><p>Anyway I think the prior suggestion was a good one, which is start from the zero map and work up from there. This prodded me to consider something I haven't before, or at least not as carefully, which was perhaps the altitude fix updated ECU was starting from a different baseline tune than the Dynojet maps were developed on. I may just set it to zero and run out for a cruise later today.</p></blockquote><p></p>
[QUOTE="ajpagosa, post: 1315073, member: 30139"] I tend to agree with you there, sort of. It will run OK but it will actually be measurably off in AFR. I base this opinion on tuning cars and other bikes where I had a logging capability or other feedback (like obvious pinging). It has been a while but I did look at the cell values for the various Dynojet maps, and compared the one for no mods (not the zero map, the base map) and for my mods (K&N + TBR) and they were different. Every other bike/car I've had needed to be tuned one way or another for exhaust/intake mods. Oh I have one other mod, the PAIR delete. Anyway I think the prior suggestion was a good one, which is start from the zero map and work up from there. This prodded me to consider something I haven't before, or at least not as carefully, which was perhaps the altitude fix updated ECU was starting from a different baseline tune than the Dynojet maps were developed on. I may just set it to zero and run out for a cruise later today. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Power Commander V w/Autotune Discussion
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