Prop slip on 36
 

What kind of prop slip numbers are you getting with your 36 CATS? My 2005 36 Nor-Tech with Bravos is amazing it is getting 4-5 % prop slip at 158MPH Herring 5 Blades. Old Hooters race boat!

with bravo's?? aren't you ripping that outdrive off at those speeds?

:confused::boat:

NO not yet! LOL

What is you power and set up? Notches? extension boxes? both? What is your pitch and diameter?

900 HP , Yes i have the notches, imco extension boxes and imco drives with 1.36 ratio and 36 pitch 15 1/4 " diameter.Herrings. I had them at 6500 rpm give or take a 100 rpm because my tachs only go to 6000 RPM.

158MPH...... I think I'm smelling some poop.... :bsflag:

ya me too,anybody got a spare pair of boots

:angry-smiley-038:

:grinser010:Attachment 433650

Yes when my girlfriend drove we only went 138 !

Is that Kilometers perhaps

The GPS does not BS maybe you do! :drink:

sweet boat,what was the rpm when she was driveing?

She only had it to 5700 RPM that was enough for her she said.

there is no doubt thats a better boat then what I'm runnin but the numbers don't add up. We run a 33 elimianator with 632 tall decks NA with dry sump 6 drives 132 gears and 16/3/4 x 35 merc lab four blades the mills dyno at 944 hp.
when we let it eat she spins 6 to 62 at 135.

One Question.... How come in the picture of your girlfriend driving the boat you do not see the back side top of the GPS / Speedo???? Based on the other picture of the GPS / Speedo you should clearly be able see the top of the back of the Speedo gage as it appears to be above the dash... For some strange reason its not there.... Things that make you go Hummmmmmm........

what kinda boat is that ?

it is a B_ _ _ _ S _ _ _ T Boat

36 NT, its the old Hooters Race Boat Nor-Tech

Hmmmmmmmm ....photo shop ooops :party-smiley-004:

just my 2 cents here but are you sure thats the recall and not the cycle the speedo goes through on power up

The pic of my GF was from last year when i had 525EFIs and smart craft that is why there is no speedo on the dash. I sold those motors and the smart craft setup.The boat went 115 with STOCK Merc 525s, about 8 MPH faster then a regular 36 NT.

Do you boat on lake Erie ? If so i would love to run your Eliminator maybe to Put in Bay last one buys. I`ll take a Bud bud.:drink:

36 nt speed
 

what does the boat weigh

sounds like a good time,I will have to see how the boat runs this spring I'm pulling the motors first of the year there a little high strung for the way we like to boat

I have a buddy that lives all the way up Sanduskey bay its about 35 miles from put in bay we could meet there and run back out to kellys

I never had the boat weighed but i`am sure it is at least 1000LBS lighter then a regular 36 NT. It has no cabin not even carpet below the deck. The cockpit is not like a regular NT either,5 lite seats no other interior and the deck is thinner then a regular NT. Having a Bravo setup vs a #6 setup is also to my advantage for weight and efficancy. Have you ever tried to turn a #6 drive by hand ? But you can a Bravo very easy. A lot power being eatin up by a #6 !!! and yes i know i have NO dependabilty with a Bravo.

Ive been on the boat seeing is believing.

Race boats are light, less wieght equal more speed. DUH. Hence why you can do 130 in a 36 skater with 525s, also bravos use alot less power then a #6

Pretty good numbers and nice looking ride...I'll bet your closer to 1500 lbs lighter...than a production one...I know mines heavy but it does have a nice solid feel

Bruce, these guys are giving you a hard time. They smell poop, I smell jealousy! :hitfan:

straight shooter
 

figure I'll finally jump in here.... 26awsome is straight up....if B-man says it dose 158mph It dose exacly that.
No BS from him.

here's to the bucket list :doing 150+ in something you put together your self.

but two bare a$$ doning 60 is just as good


later b-man

143 on the chip.... and holding (for now) :(

158 on 900hp not happening.
I had a 36 and been in several others. Bravos at these speeds are no faster than a merc 6. The prop size.efficiency. is way faster than a bravo prop. The 36 race boat was not a fast boat. It was slightly lighter. With 1200hp/side thee 36 will comeclose to 160 mph. But with 900s 145mph is max.:bsflag::bsflag:

158 on 900hp not happening.
I had a 36 and been in several others. Bravos at these speeds are no faster than a merc 6. The prop size.efficiency. is way faster than a bravo prop. The 36 race boat was not a fast boat. It was slightly lighter. With 1200hp/side thee 36 will comeclose to 160 mph. But with 900s 145mph is max.:bsflag::bsflag: and 3-4% slip on those props is not possible:bsflag:

King, Could be a hickup in the GPS, so I'm staying neutral, however the 3% @ 158 mph ? with the info provided 9% @ 148 seems more realistic with this setup.

Bring along a couple pals with secondary GPS's and put the doubt to bed.:evilb:

Mr buttonhead says the 36 NT race boat was not fast. Yes compared to a Skater 525HP = 130 mph. My NT with 525s did 115MPH all other 36 NT are 6 to 9 MPH slower. So with 900HP in a stock NT vs 900HP in my NT the difference is 13mph maybe more being that the hull is more efficient at higher speeds. Since you say 145 is max with 900s in a stock 36NT add 13mph, What do you have?????? I also said my slip is 5% NOT 3-4%. Till summer comes and i can get video of my speeds and take more people out for rides i`am not sure why SOME people don`t like the FACTS!:kiss:

I was talking 145mph in your 36.a non race 36 runs 138-140mph on 900's. A non race 36 with bravos runs 114mph per sweets. I love the nortechs but this is what they run fact.a 388 skater race with 525's and 6's runs 133mph prop stop:bsflag:

bring on summer
 

P ROB you still owe me drinks..... it's faster than our slug....and faster than your guess of 130-135 max.... though truth be told wish you where right... but your not...
:( is it time for a road trip? it is F ebuary :O

Button head: you do the math.....

115mph with 1200hp = .0958mph / per hp
1700hp X .0958mph = 163 mph
only variable not accounted for is wind resistance...but the boat is lighter the faster it gets....

1200/2 = 600/side (real 525 fly wheel hp on the dyno)

900 dyno = 850 in true marine trim X2 = 1700hp (as they sit in the boat)

now I'm going to get some popcorn.... later B

I dont think it works like that....:party-smiley-004:

The MPH/hp decreases with speed due to increased wind resistance and friction. Might very well be .0958mph/hp at 115mph, but it probably isnt the same at 160+mph.

I have no opinion on whether or not the boat really does 158mph, just pointing out some flaws.

Cabin Fever
 

SK,
It's good to see BL hitiing the big numbers, but you know me seeing is beleiving anyway not to hijack his link, yah it's getting close and I'm getting the itch to say bring her down but given the recent weather I think I'll sit tight and wait till the weather looks more favorable.

I'll bring the Captain Morgan's this week.

P ROB