Zinger16

@lovetosurf just curious what prop are you running on the fi23. do you have a 409 and what surf rpms are you seeing fully loaded

I have a 2018 FI23 with the 6.0l 409 hp motor at sea level in portland oregon. The boat has 149 hours on it and i just re changed the engine oil and fuel filters. The boat has a 16x13.9 prop. I u The problem -- The motor runs good then it will run like it lost 70 hp.... unloaded you can feel it not pull as hard and take longer to plane. Then later in the day it will jump out of the whole no problem. Last night we went to surf and when we started we couldn't get tot surf speed until we dumped about half of all the ballast. An hour later i refilled the ballast and it pulled it the rest of the night no problem. This happens all the time. A few nights before it ran great as soon as we got into the water. After about 45 minutes of surfing it wouldn't get to speed and we had to dump 30 percent of the ballast for it to make speed again. A couple hours later it started running great again and filled everything back up and pulled with ease..... IT doesnt miss... and make any unusual sounds when running... running 92 octane .. No codes are thrown and its running at 167 degrees Any thoughts here ??? Please Help :-)

I have a 2018 FI23 with the 6.0l 409 hp motor at sea level in portland oregon. The boat has 149 hours on it and i just re changed the engine oil and fuel filters. The boat has a 16x13.9 prop. I u

@lovetosurf Just checking in have you done any more mods ? where did you end up putting the lead ?

When i continue to over ride the ramfills i never see water come out of the vents on the side of the boat. Is this normal? Is water suppose to come out ? Thanks 2018 FI23

Just tried it last night and it is a great surf prop for sure but barely any top end.. I dont need to fly down the lake but would like to be able to run 36 -37 wot and cruise at 30. I had a 2279 15x15.75 and it seemed to be just barely to much... They have a 15.5 x15 that looks tempting :-)

I just tried a 16x15 on my 2018 409 fi23. Worked great for normal driving but couldnt get up to speed with fully ballast. i just got a 3409 16x13 .150 prop which ill be trying todo in the Willamette (sea level). @H20 KING have you done any more work or testing with your prop? I was hoping to have a little more top end... we go upto green peter which is about 1200 ft so i need to ensure it works for a little elevation.

H20king I’m in pdx as well and just bought a 2018 Fi23. Wanted to get your thoughts on prop selection and your experience. Tried to message you but it wouldn’t let me Can also text me at 541 nine seven four 2625 Thanks ahead for any help

Thank you.. I tried the 16x15 the other night and without ballast i loved it but as you mentioned it didn’t work well with full ballast. I just ordered the 16x13 with the .150 cup. They had another with a .105 cup. Not sure how big of a difference that will make.... I wish they had a 16x14 :-)

Installing a ladder myself on our new 2018 fi23. Is still holding up good ? How big of a person have you had on it? You mentioned newer boats have metal in them?? Would that include mine ? @InfinitySurf

@h20king