Prop slip numbers
 

What kind of prop slip numbers is everyone getting with thier 280's? I think mine is kind of high and I can't figure out why. With my labbed 26 hydro I was getting 14% and I just put on a stock 27 hydro and I'm getting 18% with major blow out getting on plane. My 26 doesn't blow out at all.


Frank

Re: Prop slip numbers
 

Hey Frank,

My 280 is right there at about 13.5 -14% slip with a labbed 26 hydro with chewed up edges. What are you triming to on your indicator? I'm usually down around 7 or so. What did that 27 do for RPM's vs the 26 and did you see any speed?

Re: Prop slip numbers
 

I actually get 100 more rpm out of the 27 and about 3 or 4 mph slower.

Frank

Re: Prop slip numbers
 

Holy Chit. If trimmed my drive down around 7 I think it would fly. :drink: Dots show my trim & tab settings. Tabs at 2-1/2 and trim at 5. :cool:

Re: Prop slip numbers
 

Frank,
I can run alot more than 5 on my boat,I can trim way out but I do not know if the Imco Drive trims alot different but I do know that the drive length and cavatation plates are alot different.Try trimming it until it starts to lose bit and back down a little and see if it gives you any performance value and also take a straight edge and see where the drive is at different settings and make sure that the indicators are working properly.

Re: Prop slip numbers
 

With my worked hydro I don't hardly trim past neutral for my best speed, but with the stock 27 I have to trim the snot out of it to get anywhere. I think I'm going to send out the 27 to get some work done to it.

Frank

Re: Prop slip numbers
 

Hey Frank instead of sending out your props why dont you just buy my boat and be done with it,you can go 100 plus and not change a thing,what do you think.PS Did any of you guys get any running shots during the Fun Run of my boat,just curious.

Re: Prop slip numbers
 

Rick,

Most 280 or 260 owners that I talk to get down to around somewere between 6-8. I assume 2 on your tabs is about level? Try picking them up all the way. I can tell a difference on mine. Just a little harder to keep it on the pad, but less drag.

Re: Prop slip numbers
 

Should I be taking out a insurance policy before I try this. :rolleyes: I'll give it a go tonight.

Re: Prop slip numbers
 

Hold the phone!!!!

You guys keep playin around with these little ear blades.

I've played around with a few different blases. The Bravo runs so much better all around then the hydro.

hole shot is better...cruise is way better....I might have lost 1 mph top end if that.

Never i mean never any blow out.

+/- 600hp, 1:1.34 ratio, 26"pitch, 5200rpm, 82/83 mph