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Old 09-16-2010, 10:42 PM   #1
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I've been doing some fine tuning with the emb lately and i'm noticing a trend.

It seems when i'm recording runs, if I go from a standing start and redline the first few gears I'm seeing 85-90% duty cycle max on the log. If I just do some roll on's, say 4k to redline in 3rd I only see DC's of like 60-65%.

Also, on the freeway in 4th and 5th gears if I go wot the DC's only hit about 60%

Afr's remain the same regardless on all three different circumstances.
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Old 09-16-2010, 11:00 PM   #2
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That's weird. Are you datalogging the total injector duty cycle, or the "stock" injector cycle?

Hum.... maybe I should try some roll-ons and see if I get different injector duty cycle.

What size injectors do you have?

Dave,
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Old 09-17-2010, 12:26 AM   #3
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Just stock nb's, 265cc I think. I'm getting really close to needing larger ones though.

Yeah, try doing a couple runs. I usually record getting on to on-ramps and running it up to about 80, then i'll do some 4th and fifth gear roll on logs.

I record rpm, tp, greddy sensor, normal dc, total dc, and ignition.
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