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-   -   Spectre 36 2x1060hp Video (https://www.offshoreonly.com/forums/general-boating-discussion/284977-spectre-36-2x1060hp-video.html)

pstorti 09-23-2012 11:00 AM


Originally Posted by espen (Post 3782550)
when it comes to diesels the problem are small rpm band so in my opinion there is a hugh advantage of higher max rpm , you can use a smaller pitch propeller and get more acceleration , idle at not insane speeds... Lars can fill in here .

As you can see from the dyno graph there is a very wide rpm band with usable power from 2000-4000 rpm. There is a small advantage to the higher max rpm, it only equates to 5 or 6 mph extra top end for me.

My boat idles at normal speeds 5mph or so. Spinning a smaller pitch prop negates the benefit of any extra HP or rpm, I want to spin a bigger prop not a smaller one, I don't understand your reasoning. Maybe it is more applicable to large diameter and high pitch (35+) cleaver style props like on a #6 drive, but for bravos it doesn't make sense. Also I am running a standard 1.5 gear ratio not some super low 1:1 or something.

If the engine makes more power throughout the rev range I can go from a 26p to a 28p and gain more cruise speed and top end. My idle speed would be almost the same. But I would gain 10-11 mph top end big improvement!

Top speeds at 4300 rpm
24p 56mph
26p 61mph
28p 66mph

But in order to turn the 28 I need more power all the way through or else I will be lugging the motor in the midrange where I spend 99% of my time. If I am wrong please explain it to me I am always willing to learn. :)

TeamSaris 09-23-2012 11:11 AM

Sweet! We filled the notches on ours too (#6) made a big difference

SS930 09-28-2012 03:26 PM

Nice job guys. I like the custom exhaust/notch!

dicudmore 09-29-2012 09:27 AM

great video, and beautiful boat :D

low_psi 09-30-2012 01:41 PM

I just want to know how the driver is able to push that boat at those speeds without any glasses on..... At 60 behind the windshield of my Velocity my eyes tear up so bad I am blinking once evey 2 seconds.......

tony stamis 09-30-2012 07:08 PM

My boy owns A 2003 36 spectre called Maximus Boat has a set of teague Whippled motors with Bravo XRs with all Teague shafts Stainless Bell Housings Its a sweet ride The acceleration is insane from 0- 120 I think it may pull harder than his 40 skater with 1100s. The spectres a clean boat for a great deal i cant believe it hasn't sold yet for that price.

PBR1 10-01-2012 12:00 AM


Originally Posted by espen (Post 3778618)
Hi ! Just made this video , like to share the joy , hope you like it.
Not many boats like this in Oslo ,Norway.
https://vimeo.com/49585110

WOW!! That thing was sweet.

You guys were going really fast it must have been a really fun time.

mtm 01-03-2013 10:02 PM

any other pictures
 

Originally Posted by espen (Post 3778618)
Hi ! Just made this video , like to share the joy , hope you like it.
Not many boats like this in Oslo ,Norway.
https://vimeo.com/49585110

nice boat do you have any other pictures


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