Went from tired stock 502 EFIs to fresh 540 CU mills with 570 hp apiece and 622 ft/lbs of torque. Speed was 75mph...new speed is t.b.d....this weekend. Also added -2 lowers on the drives...
Trying 30 Bravos to start....
Results 21 to 40 of 59
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06-02-2011 02:33 PM
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06-07-2011 08:59 AM
Rebuilt engine, went from 71 to 85 and still prop testing
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06-07-2011 03:59 PM
1988baja stock 454 mag365hp 62mph now i have a 540dart 718hp best 81mph
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06-09-2011 09:59 PM
That is great. I had an 18' Donzi, loved the boat. There used to be a blue X18 Donzi with a SBC blown and arneson drive that ran strong (over 100 mph), never met the owner who put it together (George Desomd), but alwasy thought of making an 18' Donzi ran anywhere 80 mph is ballsy, and a cool boat. I like what you are doing with your boat!
Keep us informed on how the prop testing goes. Cool performance upgrade.Last edited by Smarty; 06-10-2011 at 03:07 PM.
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06-10-2011 10:26 AM
I TOOK ALL THE AIR OFF THE BOAT I COULD..!!!
IMCO #10- 2009 National Champions
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06-10-2011 10:33 AMGeorge,
The boat looks awesome!!!!
Wil
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06-11-2011 02:26 PM
thanks Will and Paul ,,,but you will have to get an up and close look ,, to see all the changes,, it truly will amaze you of the simple hull and deck changes,,and a zero drag theroy,,it,s simple and it works,,,see ya all in Sarasota,,
IMCO #10- 2009 National Champions
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06-12-2011 06:06 PM
Not sure if we will stick the motors in the boat at this power level. http://www.youtube.com/watch?v=yiny0...el_video_title
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06-13-2011 07:32 PM
I lost some weight, quit drinking Heinies. Gained about .00015 MPH. Just kidding.
Did some prop testing, dinoed, got 580 & 581 horsies out, knowing the motors were OK, I wasn't afraid to "push it" with some trimming out, running props out, instead of "in", we had a great run in Jax. Last once out of the docks, we got to the upper 1/3 by the bridge in dish washing type chit of waters. THe Avanti loves that rough stuff.Life is: what happens... when you plan something else.
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06-14-2011 08:19 AM
Smarty ,,we added a Bussell to the transom ,to reduce the vacume at the back of the boat,,,i useto have a real tall scoop ( about 14'' high) ,,and as you can see ,i went to the hydro ,cabover 5'' ,,their are also a hand few of things ,i,v done to the deck and hull that will come out after everyone sees it at the first race,,SARASOTA !!
IMCO #10- 2009 National Champions
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06-14-2011 08:37 AMthe new scoop looks killer, George.
Boat-less...
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06-14-2011 12:07 PM
thanks Gris,,,i,m dying to come out to Texas with her ,when you guys have the big tie-up party,,,
IMCO #10- 2009 National Champions
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06-14-2011 12:53 PMWont a bussell create more negative drag at the transom since the airflow is sucking it out from under it? I think a rolled down deck to transom is the best to advance the airflow and not to have drag at this point ???!!
Now with the airscoop, wouldn't it be better to have one that does not force air in and have it sucked in as needed (like 1 or 2 small ones turned reverse on the hatch) ?
I think forced air is always like a parrasute effect no matter how much holes u have to let it out..hhhhhmmmm
But it looks good, like always !