Didn't make any changes to VE. Needs some more adjustment on transients. I figure decaps make larger fuel droplets, so more will collect on the port walls. The decay of residual fuel can be seen in the AFR curve when the throttle is closed after a power run.
i gotta pipe the wg back into the exhaust! mf is loudtacobell.hpl
Definitely an interesting VE table.
Open it up some more on the next one.
Just an FYI guys that VE looks like it's scaled about -30% or .7
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Yes it does. AFR is still set normal, though. Unless there's another way of scaling? I just figured chinese injectors causing VE to be so weird.
Could be fuel pressure, too. FUel pressure set to 58 psi with vacuum line disconnected?
Fuel pressure or INJ data not correct.Originally Posted by SiriusC1024
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Yessir. 58 psi. With KOEO and at idle no vacuum.
What does scaled by .7 mean?
It means tricking the computer into thinking it has a smaller injector size. This reduces cylair so that timing can be adjusted for the whole operating range. I'll keep trying to make this work for you if you want, but better injectors would be ideal.
Make a new thread for your project. We'll get you going.
something came loose on the later longer pull. i took er on the freeway tonight. i think its just an exhaust leak by the sound. im very pleased with the results thus far tho!jae.hpl
I'll make the VE table prettier after it gets closer. Still, not sure those transients will ever get under control. This will work for now. AFR should be closer on the next log.
I had some thoughts on the residual fuel problem after a power run. I'm guessing water-meth is active during your runs? What kit and which nozzle?
Last edited by SiriusC1024; 11-26-2023 at 06:10 AM.
Yes Meth is Active and also 2nd fuel pump kicks on simultaneously. It comes on about 6+ lbs. Meth kit is from SNO. It?s the basic ?level1? kit and I have the larger of the two nozzles in right now, can remember specs.
Where is the IAT sensor located? MAF sensor or in the manifold?
I would set those up to come on individually. With them both coming on at the same time there's going to be a huge dip in your airflow tables or PE or both. It will be easier to tune if one comes on then the other. Depending on what the in-tank pump is, you might be able to get away with just the meth and leave out the second pump. You really want the simplest solution possible. Less to fail, easier to tune, etc.
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Indeed, there is a big dip in the VE table. I was thinking tuning it without WMI in order to get VE setup. Spark is low enough right now for that.
Iat is in intake pipe after turbo before TB.
I can set up the water-meth and fuel pumps to come on separately no problem.
That or ill just disable the 2nd pump so its just Water-meth triggering.
That's good. So IAT spark reduction can be retained as a safety in case the WMI system fails.
I'd like to see a log with WMI disabled. Spark is low enough, and fuel is close enough, that detonation shouldn't be a concern. This will help to focus on air/fuel directly. Turn it on after VE is squared away. If you're not comfortable turning it off entirely then at least put in the smaller nozzle.
Sounds like a plan! I?ll disable it and make a log
If it hasn't been said yet, do short, abbreviated pulls until you know the A/F is good at XXXX RPM before going higher. Start with short pulls to 4200 or so. Make sure that's good. Then go to 5000 or so. That'll keep you from doing full blasts when the A/F might not be right.
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Good idea, will do.
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