2007 353 2x496 correct props?
#9
You should be able to spin 28's much higher than 4000 rpms trimmed out at sea level with 1.50 ratio drives and it should have 1.50's.
Any chance the drives are 1.36 ratio?? If they are for some reason 1.36's, you will need to drop down in pitch to 24's or labbed 26's.
If not 1.36's then I'm thinking you may be in 80% guardian mode as well.
Does it get to 4000 rpms WITHOUT trimming up?? What GPS speed are you seeing at 4000rpms?
Any chance the drives are 1.36 ratio?? If they are for some reason 1.36's, you will need to drop down in pitch to 24's or labbed 26's.
If not 1.36's then I'm thinking you may be in 80% guardian mode as well.
Does it get to 4000 rpms WITHOUT trimming up?? What GPS speed are you seeing at 4000rpms?
Last edited by Griff; 09-12-2021 at 10:23 PM.
#10
60+ MPH and pretty sure 1.5 drives going to get smaller props to test? Thanks 3 seasons on boat very little trim to get to 4000 rpm just payed a fortune to correct still no luck?









