Has anyone reflashed their 3.0SC V6 aka Tune?

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Nechaken

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Yes. It saves the old checksum
Thanks. Installed the lower pulley and stage 2 tune today. Took it for a bit of a spin just around town, definitely makes up for a bit of the torque loss going to the V6. Although, since I’m at 5200 feet, I guess this is what stock feels like at sea level. Unfortunately it’s rush hour so not like I had a chance to make any hard runs.

For anyone else wondering, once the stage 2 file is on there the Vflash adds a menu option to flash back to original.
 

Nechaken

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Question for those of you living at sea level and have done the pulley -- have any of you logged "boost pressure absolute - raw value" with the IID tool to see where it falls in the 3500-5000 range? I'm curious how much the tune + pulley makes up for me living at elevation.
 

16FujiDisco

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Question for those of you living at sea level and have done the pulley -- have any of you logged "boost pressure absolute - raw value" with the IID tool to see where it falls in the 3500-5000 range? I'm curious how much the tune + pulley makes up for me living at elevation.
I didn’t know you could do that! I may have to try this
 

Fuji4

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Question for those of you living at sea level and have done the pulley -- have any of you logged "boost pressure absolute - raw value" with the IID tool to see where it falls in the 3500-5000 range? I'm curious how much the tune + pulley makes up for me living at elevation.
A48948CC-756D-4195-9DC4-FF2341E60E88.png
 

16FujiDisco

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So I just completed an upper pulley swap and have a couple of notes for others who my attempt it:

- my stock pulley had to have been seized on (85k mi), I tried a supercharger pulley remover, 3 jaw puller, heat, cutting and I could not get it off. I ended up replacing the snout with one from quality superchargers (eBay) that’s was a genuine LR rebuilt. Be prepared for this possibility

- because of the above, I would prob recommend doing this at the same time as crossovers, and doing the coupler and oil as well. Taking everything off twice is no fun

- to heat the new pulley I used a cheap hot plate from Amazon and it worked perfectly; no torch needed

- another good option would be a new snout with performance pulley already installed from quality superchargers, had I not already had a pulley I would have done this.
 

Nechaken

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@16FujiDisco - Random question for you. I've done the lower pulley but so far have held off on doing the upper pulley. I've noticed during the summer that sometimes on hot days (90+) driving around town in traffic, the car sometimes feels weaker, like it is pulling timing or limiting boost. (Probably no worse than stock, however). No misfires, stuttering, or detonation, so I'm assuming more a matter of conservative tuning to deal w heat soak -- which I'm fine with. Have you ever experienced that ?
 

16FujiDisco

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@hickersb i haven’t noticed anything like that so far and we had a really hot summer here this year. Maybe @Fuji4 could chime in, but I could see that being a symptom of supercharger water pump not being efficient or failing.
 

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