Prop Slip way high!

[Lape0019]

First thing to do is to contact the company that did the tune and ask what the current max RPMS are. When I looked into it, they raised the RPM limiter quite a bit. Until you know that number, you really do not have a WOT number to test slip with.

[rocket man]

What is the prop slip suppose to be.? I found a calculator on line and mine is 14% is that good.?

[mattfish11]

What is the prop slip suppose to be.? I found a calculator on line and mine is 14% is that good.?

I like it to be below 10%. My last setup my prop slip was about 7% and boat ran good - good rpms, good speed, handling, etc. I think 14% is high

[rocket man]

OK How do I lower it.? I know nothing about props. Right now I have a 21 pitch and can hit max rpms with enough trim. I already raised motor 2 holes, I have 1 left.

[Nova Kaw 650]

OK How do I lower it.? I know nothing about props. Right now I have a 21 pitch and can hit max rpms with enough trim. I already raised motor 2 holes, I have 1 left.

Did the slip get lower when you raised it?

[rocket man]

Did the slip get lower when you raised it?

Don't know didn't check til yesterday when I seen this thread. Raised last winter.

[alanhore]

Depends on the year. My 2013 75 4stroke has a 2.33 ratio.

What is the gear ratio on the 75 4strokes? I know on the flashed 2 strokes it seems as if everyone is running a 24 pitch prop including myself.

[alanhore]

I believe mine was raised to 6300.

First thing to do is to contact the company that did the tune and ask what the current max RPMS are. When I looked into it, they raised the RPM limiter quite a bit. Until you know that number, you really do not have a WOT number to test slip with.

[Boondock]

Lazer has to go

buy a x-7 ss and your slip will drop a ton
Ik supposedly at 4-7% slip with the stock x7 ss

[Lape0019]

If it was raised to 6300, have you hit the top speed at 6300 to do your calculation?

[Deerchaser]

Im running with 3% slip with my X7 with mostly just the foot in the water.

[alanhore]

If it was raised to 6300, have you hit the top speed at 6300 to do your calculation?

I have not. I dont like to turn it that tight. But I have hit 6300 at times.

[Lape0019]

I’d be more concerned with your prop slip number at WOT than anywhere else. If it’s that high, you either have to adjust engine hieight, get a new prop, or have cup added to your current one. If you are as low in the water as you say you are, I can’t see dropping the motor anymore.