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Location:
sunny coast, qld
Registered:
October 2002
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fuel tuning question
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Tue, 13 September 2005 11:31
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I have been out tuning my 1jz with wolf 3d v4. before.
Basically what is happening is that between 5000 and abou 5500 it is at about 13.0 - 12.8 then it is getting richer and heading to 12.4 at about 6000 then gets to mid 11's between 6000 and 7000.
That is at 15psi the whole time. The strange thing is that the fuel map is at 7.8ms from 5000 to 5750 or so and at 6000rpm it goes down to 7.3. Yet it is at the same time that the fuel amount decreases that the engine gets richer?
How can this happen?
The only thing I can think of is that the acceleration enrichment is not quick enough as it is really coming on boost hard at about 5000rpm.
I thought of duty cycle on the 550cc injectors but that doesn't make sense either as if they were running out of flow it would be leaning out in the top end of the rev range.
Any other ideas?
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