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UpRev Tuning A/F Targets

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Old May 19, 2013 | 05:54 PM
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Default UpRev Tuning A/F Targets

What does base fuel schedule mean in the A/F target

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Old May 19, 2013 | 07:04 PM
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It's effectively load; not exactly, but close enough to read that way.
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Old May 19, 2013 | 07:19 PM
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So 6 would be low load and 17 would be high load?
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Old May 19, 2013 | 11:48 PM
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Exactly.
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Old May 20, 2013 | 06:37 PM
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It's theoretical injector on time in mS, without corrections. It does relate closely with load. If you change your injectors to bigger ones you'd typically rescale that axis.
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Old May 22, 2013 | 06:38 AM
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Originally Posted by djamps
It's theoretical injector on time in mS, without corrections. It does relate closely with load. If you change your injectors to bigger ones you'd typically rescale that axis.
how does one calculate that rescaling? now i'm curious.
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Old Jun 2, 2013 | 11:54 AM
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at the top of the pop up there is an edit button and you can change the values of the BFS. So if you want a higher load area for say a high boost vehicle you take that 17 and change it to 20 or greater.
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Old Jun 3, 2013 | 12:09 PM
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so the stock maps start with 6ms IPW essentially?

Originally Posted by djamps
It's theoretical injector on time in mS, without corrections. It does relate closely with load. If you change your injectors to bigger ones you'd typically rescale that axis.
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Old Jun 3, 2013 | 01:11 PM
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Stock ecu tune just extends targets for any bfs not specified in the fuel map. For example, say you are at bfs 3ms and rpm 2400. Ecu will use target 14.7 according to table in op. The bfs number has no relation to actual ipw but may sometimes equal pw like possibly on a stock car with 0 correction and target afr of 14.7. It is the calculated pw needed to maintain afr 14.7 at the corresponding load.

Last edited by balaguru; Jun 3, 2013 at 03:04 PM.
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