Mistress repower #2 begins....
#761
Registered
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
#762
Gold Member
Gold Member
Thread Starter
Join Date: Oct 2005
Location: Olmsted Falls,Ohio Marblehead,Oh
Posts: 11,638
Likes: 0
Received 209 Likes
on
133 Posts
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
#763
Registered
Join Date: Sep 2007
Location: Kent Island MD
Posts: 216
Likes: 0
Received 0 Likes
on
0 Posts
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
#765
Gold Member
Gold Member
Thread Starter
Join Date: Oct 2005
Location: Olmsted Falls,Ohio Marblehead,Oh
Posts: 11,638
Likes: 0
Received 209 Likes
on
133 Posts
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
#768
Registered
Join Date: Sep 2007
Location: Kent Island MD
Posts: 216
Likes: 0
Received 0 Likes
on
0 Posts
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%)
#769
Registered
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