Mistress repower #2 begins....
07-07-2015 | 01:28 PM
#761
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Joined: Feb 2004
Posts: 2,590
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From: Endicott, NY
I saw 75 with TRS.
78.6 with Konrads.
Fastest was downhill with the dually full of fuel.
Good luck with your project.
Also the motors ran for 700+ hours before it threw a rod from what I heard. Flawless
78.6 with Konrads.
Fastest was downhill with the dually full of fuel.
Good luck with your project.
Also the motors ran for 700+ hours before it threw a rod from what I heard. Flawless
07-07-2015 | 01:45 PM
#762
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Joined: Oct 2005
Posts: 11,688
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From: Olmsted Falls,Ohio Marblehead,Oh
Sweet! I think I will se 75 one day with right props and water if not oh well I was super surprised how it ran with last engines but those were bombs
07-09-2015 | 08:56 AM
#763
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Joined: Sep 2007
Posts: 216
Likes: 1
From: Kent Island MD
These hulls are terribly inefficient, they ride bow high and you cant use a bunch of trim to get them out of the water as they tend to plow upward instead of pushing forward. I got my n/a 540s to 82 at 5800. I personally think it takes a crazy amount of power to pass that 75mph mark, 50 or 100 wont make much of a difference. 23p props will kill the cruise, if it were me, I would leave the 25s on it and advance the cams 4 deg and just settle. Im still working out the bugs on my new combo, props are difficult to find for #3 so im kind of limited. I have run 89 to date with 40 more cube, way better heads and 10-71 blowers! I was hoping to eventually see 100 but I doubt that will happen, should be a solid low-mid 90s boat
07-09-2015 | 10:01 AM
#765
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Gold Member
Joined: Oct 2005
Posts: 11,688
Likes: 216
From: Olmsted Falls,Ohio Marblehead,Oh
These hulls are terribly inefficient, they ride bow high and you cant use a bunch of trim to get them out of the water as they tend to plow upward instead of pushing forward. I got my n/a 540s to 82 at 5800. I personally think it takes a crazy amount of power to pass that 75mph mark, 50 or 100 wont make much of a difference. 23p props will kill the cruise, if it were me, I would leave the 25s on it and advance the cams 4 deg and just settle. Im still working out the bugs on my new combo, props are difficult to find for #3 so im kind of limited. I have run 89 to date with 40 more cube, way better heads and 10-71 blowers! I was hoping to eventually see 100 but I doubt that will happen, should be a solid low-mid 90s boat
07-09-2015 | 01:59 PM
#768
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Joined: Sep 2007
Posts: 216
Likes: 1
From: Kent Island MD
Im running 6# of boost right now, I think they are making a little better than 900 in this trim. Drives are #3 mounted 4.5" from bottom. Im currently running 17.5 x 31 3 blades but have a ton of slippage ( over 20%)
07-09-2015 | 02:25 PM
#769
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Joined: Feb 2004
Posts: 2,590
Likes: 173
From: Endicott, NY
These hulls are terribly inefficient, they ride bow high and you cant use a bunch of trim to get them out of the water as they tend to plow upward instead of pushing forward. I got my n/a 540s to 82 at 5800. I personally think it takes a crazy amount of power to pass that 75mph mark, 50 or 100 wont make much of a difference. 23p props will kill the cruise, if it were me, I would leave the 25s on it and advance the cams 4 deg and just settle. Im still working out the bugs on my new combo, props are difficult to find for #3 so im kind of limited. I have run 89 to date with 40 more cube, way better heads and 10-71 blowers! I was hoping to eventually see 100 but I doubt that will happen, should be a solid low-mid 90s boat
07-09-2015 | 02:34 PM
#770
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Joined: Oct 2005
Posts: 11,688
Likes: 216
From: Olmsted Falls,Ohio Marblehead,Oh
