|
Wellcraft 27' Nova 3 with 383's....how fast?
Hey guys, just curious...picked up a real nice shape Nova 3 this Spring with fresh built twin 383's dyno'ed at 450hp each and spinning Mirage 3-blade 23 pitch props. Dry weight is claimed 5600 lbs I believe, and haven't had her out yet but just wondered what you guys thought I should expect to see on GPS on a good day...Thanks! :)
|
i really want to see what is going on with these i am swaping 454's that took water with new 383's
|
:poopoo::eekdrop:nova 3 verry slow hull Ihade one bought a 26 scrrab 1996 a year old with a 454/385 ran 70 all day nova ran 50 tops with 350 mags:lolhit:
|
23P = 61-62 MPH
The truth is in the props. |
Mine is a 1991 Nova St ran 79 gps w 454's, mirage props 25p ,now with 383's around 380hp each and 500lbs less weight, should handle good.
|
Well, had it out yesterday and in a 1-2' chop I hit 68 mph on the gps with 5 people and 3/4 tank of gas, so thinking should hopefully be able to hit 70 with a few less people and less fuel. Boat ran great all morning, but in the afternoon the port engine started running terrible and wouldn't spin past 2500rpm. Tried limping it back into the launch on one motor and after about 10 min, that motor also started sputtering and wouldn't rev up like it should....thinking might have water in gas (since it was sitting for almost 2 years while motors were being built by previous owner, the joys of buying someone else's project :( ) as it doesn't make sense why both motors would be affected if something was wrong with one of the carbs, etc. Maybe the intake screen in the tank is clogged? I doubt both fuel pumps would go bad at the same time...going to start with draining the fuel seperators into a clear container and inspecting the fuel, and installing new filters. Anybody have any thoughts? Just weird that it ran great in the morning for about an hour and then when I went to start it back up in the afternoon it immediately experienced this problem...But having a boat with a big block previously, I was very impressed with the handling of the small blocks in this size boat. Would expect the stock 350's @ 260hp to be a bit of a dog in this platform, however!
Side note, with the engines being dyno'ed proir to installation in the boat at around 445-450hp each, do you think I have enough power to turn 25 pitch props? Not that I really have any need to go any faster, more just out of curiousity. Thanks! |
mine hade 350/260HP:evilb:
|
Originally Posted by acaruso
(Post 3689378)
:poopoo::eekdrop:nova 3 verry slow hull Ihade one bought a 26 scrrab 1996 a year old with a 454/385 ran 70 all day nova ran 50 tops with 350 mags:lolhit:
|
Originally Posted by jck3120
(Post 3692330)
Well, had it out yesterday and in a 1-2' chop I hit 68 mph on the gps with 5 people and 3/4 tank of gas, so thinking should hopefully be able to hit 70 with a few less people and less fuel. Boat ran great all morning, but in the afternoon the port engine started running terrible and wouldn't spin past 2500rpm. Tried limping it back into the launch on one motor and after about 10 min, that motor also started sputtering and wouldn't rev up like it should....thinking might have water in gas (since it was sitting for almost 2 years while motors were being built by previous owner, the joys of buying someone else's project :( ) as it doesn't make sense why both motors would be affected if something was wrong with one of the carbs, etc. Maybe the intake screen in the tank is clogged? I doubt both fuel pumps would go bad at the same time...going to start with draining the fuel seperators into a clear container and inspecting the fuel, and installing new filters. Anybody have any thoughts? Just weird that it ran great in the morning for about an hour and then when I went to start it back up in the afternoon it immediately experienced this problem...But having a boat with a big block previously, I was very impressed with the handling of the small blocks in this size boat. Would expect the stock 350's @ 260hp to be a bit of a dog in this platform, however!
Side note, with the engines being dyno'ed proir to installation in the boat at around 445-450hp each, do you think I have enough power to turn 25 pitch props? Not that I really have any need to go any faster, more just out of curiousity. Thanks! |
Originally Posted by MEANGREEN231
(Post 3696020)
What is the build sheet on the motors, and max rpms you can turn? I am running fairly built up 350's in my nova 3 and I see 73/74mph all day long at 5500rpms.
|
| All times are GMT -5. The time now is 12:19 AM. |
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.