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260 w/496 mag top speed

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Old 08-03-2011 | 05:30 AM
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From: Merritt Island FL
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i have never evem looked at the fuel press.
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Old 08-03-2011 | 05:59 PM
  #12  
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From: Wyandotte, MI
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Originally Posted by what ever
What is your fuel pressure?
My electric gauge read low making my presure high.
When i brought it down to what Dustin wanted it made big differance.
I haven't ever looked at fuel pressure, but I may take a look there next. But to be running in fresh water with the amount of gear I am, with the stock prop, and hitting a solid 69 on GPS, I'd say it is running pretty good.
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Old 08-04-2011 | 09:46 PM
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From: Syracuse,New York
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Originally Posted by low_psi
I haven't ever looked at fuel pressure, but I may take a look there next. But to be running in fresh water with the amount of gear I am, with the stock prop, and hitting a solid 69 on GPS, I'd say it is running pretty good.
True,but soot comes from be to rich.
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Old 08-05-2011 | 09:50 PM
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I can tell you this. THe soot is much different now, after the stage II tune. Before it was realy thick and greasy, and a real pain to clean. Now it is much thinner and not as greasy and comes off with soap and water. However, becasue it is lighter/thinner than before it seems to get all over the place. It is now wider spread. Before it wouldn't get all over the swim ladder. Now I have to get out and clean the ladder before any one uses the ladder to avoid the soot being tracked all over the boat.

I will be putting a gauge on the fuel rail next week. Anyone know what idle psi and wot psi should be? It does sound like if there is a fuel psi issue it is at higher RPM.
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Old 08-05-2011 | 10:06 PM
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On my 500 EFI that was warmed up 550 on the dyno...it was 39 at idle and 42 wide open...I bought a guage when I put a ASM monoblade on it...then an adjustable regulator and bumped it up three PSI both ways...ran like a scalded dog...but definitely sooted the transom...put it back to stock after the JAX poker run
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