y2k prop slip
 

Hey guys lets talk prop slip. I just tested my boat this weekend. first run out we saw 100mph but prop slip was @ 20% wtf. My combo rt now is a stock xr w a lab 32 bravo spinning 6200. need to get the slip down! Help

thanks Ron

LOL my slip numbers are high also . Leave the slip high and save the XR . Drop too 10% and you can kiss it goodbye !

hp? speed? prop shaft height? propeller of choice? -- Hopefully you don't mind my bombardment of questions.

i'm a month or two behind t-mone.... I purchased a y2k about 2 months ago (after t-mone took me for a ride in his, I bought one the next day) and it's getting gutted and rerigged and repowered for the next 2 months.

I too just picked one up in Nov.....would like info on you set up as well

Which one did you get!? The yellow one, the white whippled one, or the black one?

Lotsa y2ks back on LI. T-mone is from LI despite his avatar saying CT haha.

I picked this one up near Albany.... Had red and black graphics on it...took off all the red not my favorite color...fresh BBC tall deck 598 in it....can't wait till spring

Mine is all white and black canopy with red interior.... Red not my thing either haha...interior is going. I have the former "Once Bitten" boat boat that was in TX originally.

Currently has the original 496 that is getting yanked out

Where on LI are you ?

Hey Vic. Its Ron who bought the trailer. How ya been.

Hey Ron things going well...pulled interior out having that redone in white with black accents..... Put tilt steering in and trying to make some interior cabinets.... Its getting there..boat out of oakdale

I might add that Darrell from don't frost is doing my seats.....Ron you may want to try a drive spacer....there are a few threads about this

Sounds like Gary's boat. I was considering it before I bought mine.

T-Mone, a Maximus 5 blade will bring your slip down but will cut some speed too.

Bravo's are the fastest, but they slip a lot in the lower and mid range. When I plane with a bravo, as soon as I hit 3K RPMs you can hear and feel the prop slip. I don't experience the same thing with a Maximus, it just steadily pulls.

My setup is a little different though. I have ITS.

Dave yes it was Gary's boat.....making a few changes on it....

Hey Dave, i just picked up a 32 maximus an a -2 sportmaster. gonna give this a shot

Also Dave i might add my boat was fastest w a p5 hydro it was 2 mph faster than a bravo w a stock xr drive. Seems my hull likes a stern lift prop. The bravo sunk the ass an held bow up wasnt crazy about it, w the p5 boat ran nice an level.

Ron...keep us posted on bow this set up works out thanks

I def will.Im gonna prob run it sunday as long as it dont rain.

Fingers crossed we get a break in rain sunday! -2 is on boat w a 32 maximus 15 5/8 w short diff. prop center is 1 1/2 below bottom w this set up

Good luck. I'm curious how the -2 is going to work. Maybe Fastedy will chime in. Pretty sure he's tried just about everything and he told me that a shorty didn't work on his boat.

How fast is fasteddys boat ?

Dave ill let u know tmw hopefully. Everyone told me a p5 would not work either an mine ran faster a so level w it compared to the bravo. I also spin it rt hand w no issue.

Also if anyone has a external pick up on there y2k where did you install it?

Hey Ron you go out for a test run....

Ok so i finally got out in between the fog .. I can def say i tried a -2 imco an it sucked! First run was w a 32 maximus w 15 5/8 dia. boat planed well but top end close to 95mph boats ass got loose had to back out of it at 5800. Next i tried the -2 w the 32 bravo that i used w my first run w stock lower which boat ran rt about 100. With the -2 boat only went 82 at 6000 rode like a bag of ****. So now im goin to my original set up w was my fastest set up w my other engine. Stock lower w a hydro p5 only thing is i need to get a 32 pitch.

Well sorry to hear that did not work out....a spacer might work better there are a few threads on this you might want to read

I started my new setup with a -2 Imco and my slip was 30% . The only time it came down was at wide open with a P5 on it . I ran 96 mph @5900 but in effort to not break the XR I've really have been trying to run Bravo's so I started throwing spacers on there, 1/2" then 1" and now 1 1/2" but still was running out of prop . Last time out was 104 @ 5900 pulling back .. I've got some more props in but winter sports have began so it will be spring before I finish my tuning .

Long story short , -2 doesn't work on my boat !

You should call Brett at BBlades (or whoever you labbed it with) you are using the wrong numbers in your slip calculation for a "labbed" prop.

At 32 isnt a 32 (for prop slip calculation purposes) after it is labbed its considered more of a 31 or maybe even 30. After you use a more appropriate number you will see the slip numbers get more in check.

What is in your boat for power at those speeds and rpm?

[QUOTE=Shibby1485;4244449]What is in your boat for power at those speeds and rpm?[/QUOTE

598ci big M, N/A around 800hp . Motor hasn't seen a dyno in seven years

104 an you backed out wow. Thats fast w 800hp. Steve you know i have over 900 so we def are still off w our numbers. plus i have the new design bottom. Well Steve looks like we will be out this weekend testing again! OCCJoe what pitch p5 did you run that u ran out of prop. I just got off the phone w Todd he is sending me a wheel now.

Ron.

Joe give me a call i would like to talk some about set up 516-523-5852 Ron

I have an external pick up on my boat. Im about 5 minutes from your shop so if you want to shoot over and take a look its ok with me.

Why do you want an external pick up ? With the sea grass in the Great South Bay I had Skip make me a custom strainer ! If you want me to take a pic I can send it to your cell