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08-10-2009, 12:04 AM #1
Has anyone tuned their ski w/ the powershot?
Can someone share their Powershot settings while running with the 10 PSI boost limit?
It would be the same (or very close) for everyone, right? Same motors, same boost, same (stock) fuel systems?
If so it would save some people a lot of $$$ and time!!!
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08-10-2009, 03:23 AM #2
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08-10-2009, 12:52 PM #3
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08-10-2009, 12:56 PM #4
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08-10-2009, 05:30 PM #5
If I remember right, Jerry was getting good AFR's when he had the C3 & powershot with the preset fuel settings, although I think it was during cooler weather. I'm seeing around 9psi with my C1 & had to turn the green, yellow & red down to 1, 1, 1 to get the AFR up to 12:1 in all three zones in this damn heat & humidity, but the water coming out of the engine cooling pisser was scalding hot when I ran it that lean so I turned it up to 1.5, 1.5, 3 just to be safe. I didn't make any changes to the 3 crossovers. With the fuel presets(2, 2, 4.5) I was getting a bad bog when I hit the top speed crossover(7000rpm with red/blue @ 4). If yours is running fine as is I wouldn't go any leaner without using and AFR meter. All my testing was done with an LM-2.
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08-10-2009, 05:38 PM #6
- Join Date
- Jul 2008
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- Wylie, Texas
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+1. And, if you get a LM-2 it has a fitting for a standard camera mount that you can use to fix it to the ski for testing. I was also using a 12 volt relay to run the power for this. I tapped into I think a yellow/red wire to the ECU that was hot when running to trigger the relay.
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08-10-2009, 05:57 PM #7
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08-10-2009, 05:58 PM #8
I went high tech mounting my LM-2...velcro
. I had my GPS, LM-2, PET tach & powershot attached to the glove box lid with the IAT & boost gauges right above...it looked like I was launching the space shuttle. I still haven't gotten around to connecting the analog cabe from the LM-2 to the OEM tach lead so I can log AFR & rpm at the same time.
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