Originally Posted by two stroke mick
Interesting comment on the prop. I originally had a 17" * 13 dia prop and moved to a 19"* 13 and now have changed to a 21*13. I have yet to check out the new 21*13. But It may improve matters. The engine was overreving with the lower pitch props (approx 6400-6500 with the 19" and approx 7000 rpm with the 17")
Maybe the new prop will improve the handling of the DR490 in a head sea
I suspect the pitch change may not actually help that much with the bow. You could expect to come down a couple of hundred revs, however, It sounds to me you a prop that is not buest suited for your boat.
I just realised you are running an ETEC.
Are you running Vipers out of interest. They have quite a sweep on the blades, and causes bow lift. Go the SST (Traditional Props) and give them a go if your dealer is assisting you.
This is info from my Link the other week. It may be of interest or use to you. Note I am running twin Donks on an SR6, however, the principals are there.