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Diesel Conversions Powerplant swaps, Repowers, etc.

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Old 02-25-2024, 06:52 AM   #681
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I see I was hoping it was a dummy plug that would allow the engine to run. You must have extreme patience to deal with rewiring.
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Old 02-27-2024, 09:39 AM   #682
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VW is on its shit again. According the the TDI guys, in addition the the VNT being worn, I likely have a tear in the diaphragm causing an all or nothing response from the turbo actuator. I'm not sure if I want to fight with that or source another turbo at this point.

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Old 02-27-2024, 02:11 PM   #683
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Damned thing is almost as high as my 472Click the image to open in full size.

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Old 02-28-2024, 01:49 AM   #684
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As much as a turd as this VW is, I think it deserves its own thread. Sounds like you could fill it up quick!
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Old 03-02-2024, 11:44 AM   #685
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Certainly more consistent. Still need a few more mpg out of it.Click the image to open in full size.

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Old 03-08-2024, 11:25 AM   #686
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The thread about tuning Husqvarna's has me thinking about mine.

I think I caused an issue with my cranking fuel that causes the starter to drag. I've thought it was an issue with the OTIS not liking the fact that the diesel starts slower, but now I'm thinking I cut out too much fuel so the engine stumbles to life rather than kicking off and achieving idle speed quickly.

Anyone got any pointers and where to be with that? I haven't messed with the tune in nearly six months now.

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Old 03-21-2024, 10:15 PM   #687
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Better than it was. Consistent across the last two tanks.Click the image to open in full size.

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Old 03-22-2024, 09:30 AM   #688
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If anyone has any tips on getting more economy out of the lawn mower tune, I would listen. I have the main and pilot timing cranked up pretty high to try and gain some efficiency. I have pilot tapering off at 2400rpm, but that also causes an issue with some of my part throttle shifts because the timing causes a notable change in torque right before the shift. It's almost like a PID hunt right before it shifts, completely self inflicted and correctable. A simple rescale of the pilot map would change it. I'm guessing I'm right at 500rwhp on the daily and pulling 15mpg regularly. I would like to be as close to 18 as I can squeeze. I suppose I could always back the power down closer to stock but that's no fun. I plan to run to the East Coast in a couple of weeks and would like to get a road tune worked up.

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