Rev limiter value

[lonewolf41]

I'm trying to re-prop the boat and making runs with different props to check performance, verify WOT, etc. I have the diacom cable and software hooked up so I can monitor the engine (5.0 GXi-E)....specifically the engine speed. I went down in prop size and the motor didn't rev any faster so i assume I am on the rev limiter. I see fields like Governed RPM control, Governor controls MPH, and a few others in the software that seem related to a rev limiter, but none of them ever change from idle to when I hit max RPM. Is there a parameter that gets set or turns on when the rev limiter engages/activates? It would be nice to verify the rev limiter is kicked in rather than I'm just out of power with this combo. The max RPM logged is 5120, but I am only around 4850, so just want to be sure I am tuning everything for best performance and figured the best way was to run out of power right at or before the rev limiter kicks in.

 

[Scott Danforth]

pretty sure the rev limiter in the software is near 5100 RPM. IIRC its a soft limiter on the EFI motors that simply starts cutting spark and fuel by a few cylinders at a time.

 

[Grub54891]

You should be able to hear it when the limiter kick in. It will cut out and sound different.

 

[cyclops222]

2002 Mercruiser V8 with a carburetor had a 4800 RPM rev limiter. Definite change in sound.