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-   -   Our New Twin 650HP Big Block Running Strong!! (https://www.offshoreonly.com/forums/general-boating-discussion/316135-our-new-twin-650hp-big-block-running-strong.html)

Ran-Dom 32 08-01-2014 10:59 AM

no Twin step in '99 , I had the same boat '99 Single Step with 500HP's that were rebuilt making low 600's on they dyno 85 MPH best... (with -2 lowers) & Bravo 30's labbed I would think you should have a high 80's MPH boat IMHO, search the fountain section, there are many variations & HP combo's done on this exact hull... good luck

Fountainfunatic 08-01-2014 02:43 PM

If I had not run out of lake the boat would of run 75mph the way itt is. So I am hoping for more than 10 mph with the new props. I will be testing the props next week so I can update you. Not that it makes a difference but the motors were dynod at 1750da and I am almost at sea level so the hp should be a little more but not much.

ROB FREEMAN 08-02-2014 06:34 PM

23 pitch at 75 sweet slip numbers bro also 5800 about the most Id be playing ! Solid roller motor should yield more than 650 ! Be carefull bro

Fountainfunatic 08-04-2014 11:57 AM

Yesterday was a great day on the lake. There was about 7 fountains on the water ranging from 37ft lightnings to 27ft lightnings and a my buddy's 27ft 1300hp blown intimidator cat! However i was able to play with the trim and was able to run a solid 75.4mph!
Can't wait for the 30pitch 4 blades to get here this week. I will be happy with 90 something mph. I have some plans for this winter to get me over the 100mph mark!!! I will do a vid of it running this week for you guys!

4bus 08-04-2014 01:32 PM


Originally Posted by Fountainfunatic (Post 4165011)
Yesterday was a great day on the lake. There was about 7 fountains on the water ranging from 37ft lightnings to 27ft lightnings and a my buddy's 27ft 1300hp blown intimidator cat! However i was able to play with the trim and was able to run a solid 75.4mph!
Can't wait for the 30pitch 4 blades to get here this week. I will be happy with 90 something mph. I have some plans for this winter to get me over the 100mph mark!!! I will do a vid of it running this week for you guys!

Congrats on the boat.....now a bit of advice before the change. Don't chase a "number". You just missed most of the summer of 14, and just got your boat back. It sounds as if you now have a nice reliable set up that has the power to put down a good number......every day.

onesickpantera 08-04-2014 03:54 PM


Originally Posted by 4bus (Post 4165090)
Congrats on the boat.....now a bit of advice before the change. Don't chase a "number". You just missed most of the summer of 14, and just got your boat back. It sounds as if you now have a nice reliable set up that has the power to put down a good number......every day.

I agree go enjoy the boat!

Fountainfunatic 08-04-2014 05:58 PM

That is exactly hat my wife had said. Get the correct props and lets enjoy the boat.
However I am a speed junky and I love HP! I guess we all are in a since. The boat is getting dropped off in the middle of October to get painted as well. All in all I will end up leaving it alone for a little while.

Fountainfunatic 08-06-2014 07:08 PM

The new 30pitch 4bladeprops arrived today from BBLades! Cant wait till the weekend t try them out! If theboat will run in the 90"s I will be happy. I understand now that 100mh will be reaching a lttle high at this point with my curent HP.

4bus 08-06-2014 09:45 PM


Originally Posted by Fountainfunatic (Post 4166730)
The new 30pitch 4bladeprops arrived today from BBLades! Cant wait till the weekend t try them out! If theboat will run in the 90"s I will be happy. I understand now that 100mh will be reaching a lttle high at this point with my curent HP.

Looks like you had 15 percent slip on the 3 blades, which is great! If your slip stays the same and you can spin those 30 pitch at 5500+ yoy should break 90.

ROB FREEMAN 08-08-2014 06:25 AM

3 blade to A MAXIMUS 30 them some bad boy props , they look great in person too ..


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