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-   -   500efi to engine builder (https://www.offshoreonly.com/forums/velocity/247527-500efi-engine-builder.html)

Airpacker 02-22-2011 08:19 AM


Originally Posted by rmfriday (Post 3330377)
wow, well im not married(yet, got till august), no kids, and she knows what she is gettin into. As for the heads, that would not be the worse think that could happen. did you have your ecm reflashed? i would be almost sure it would be need to be done with new heads. all i know is i hope he hurries up!!

nope, just upped the fuel pressure 3psi and that brought the O2 numbers back into line.

rmfriday 02-22-2011 02:58 PM

good to know, how did you up the fuel pressure?

Airpacker 02-22-2011 03:10 PM

converted to an adjustable fuel pressure regulator.

rmfriday 02-23-2011 02:42 PM

cool, thanks for the info

rmfriday 03-27-2011 06:17 PM

well i got the report on my engine. block totaly apart, every thing hot tanked and miked. Everything looks good so we are going to resize the rods, new main bearings and new rings. Also we will totals rebuild the heads. Both heads gaskets were blown between all the cylinders, looks like the have been that way for a lil while. Hoping to pick up a few mph with the fresh engine.

CAVelocity 03-28-2011 10:35 AM

Sounds basically the same as what I did to my motor last time..... Those 500EFIs are pretty much bullet proof on the bottom end.


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