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Thread: 300x melted a piston
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12-30-2015, 08:52 AM #16Junior Member
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12-30-2015, 09:40 AM #175000 RPM
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looks like you were lucky
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12-30-2015, 01:54 PM #185000 RPM
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Standard pro. Clean injectors,depending year replace coils,coil drivers,and the fuel pumps mac. And elec. Try to save money and it will come back to haunt you
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11-29-2020, 02:42 PM #19Member
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A year ago, one of my '01 300X burned a hole in #6 just the pic above. I sent it to Chris Carson for a rebuild last winter. The injectors were cleaned. I also replaced both fuel pumps and the coil/driver for #6. 58 minutes into the break-in cycle, it burned holes in #3 and #5. The fuel was fresh and mixed to 94 octane. In both cases, there were no strange sounds or warnings of any kind from SmartCraft.
I ended up buying a used '05 powerhead which ran flawlessly all season. I'd like to rebuild my '01 to have as a spare, but am worried it will just happen again. I suspect it's in the electronics. I'm curious, could the electronics from the '05 be used on the '01? I see the coil part numbers are different, but would they work?2001 Spectre 30 w/twin 300X - sold
2008 Velocity 390SS w/twin staggered 525efi - sold
2003 Sonic 31SS w/twin 496HO - sold
1988 Baja Sunsport 196 w/500HP SBC and 125 shot nitrous - sold
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11-30-2020, 12:27 AM #205000 RPM
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11-30-2020, 12:30 AM #21
It's a 300x thing. Chris can do you right and depending on year have the ignitors and coils checked.
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11-30-2020, 12:49 AM #225000 RPM
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Chris Carson
Key Largo Florida ??
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11-30-2020, 01:37 AM #23
yessir
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11-30-2020, 10:42 AM #24Member
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2001 Spectre 30 w/twin 300X - sold
2008 Velocity 390SS w/twin staggered 525efi - sold
2003 Sonic 31SS w/twin 496HO - sold
1988 Baja Sunsport 196 w/500HP SBC and 125 shot nitrous - sold
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