hows the noise and vibrations at troll? there is certainly something to be said for displacement speeds and fuel burns.... Straight shaft as well?
What’s your top speed?
- Thread starter Fixit
- Start date
Sotally Tober
Well-Known Member
Rain City
Crew Member
Only if I win the lottery...Good opportunity to pod and repower with outboards then.
Newf
Crew Member
Straight shaft yes. Noise is certainly higher than outboard, especially being diesel. The highest vibration is also at troll speed which is basically just in gear. Replaced the motor mounts at around 1500hrs as they wear starting to crack most likely due to the higher vibration at troll speeds. Over 2100hrs now so will be watching closely for more fatigue in them. Sorry for the derail guys..
Fish-on
Member
39 MPH in my Commander 30, twin 41 Volvo diesels @4000RPM with C-5's
Hit 61MPH in my 17 Double Eagle lake boat once, scary. 5.7GXI Volvo @ 5000RPM, 290 DP C-7"s 1.68:1 gear ratio.
20 Sea Ox 20C with a Volvo 4.3 GXI, DPSM drive, D-7 props @4800 RPM 38MPH (with full fuel 300L)
Just realized I better start selling some boats. lol
Hit 61MPH in my 17 Double Eagle lake boat once, scary. 5.7GXI Volvo @ 5000RPM, 290 DP C-7"s 1.68:1 gear ratio.
20 Sea Ox 20C with a Volvo 4.3 GXI, DPSM drive, D-7 props @4800 RPM 38MPH (with full fuel 300L)
Just realized I better start selling some boats. lol
Tyee Fighter
Member
Long story...
Wellcraft WA 22, sterndrive, Volvo Penta F6, 4600 dry weight, Quicksilver replacement Volvo longblock 5.7 for the original 5.0 TBI, rollerized valvetrain, Edelbrock Performer Intake, reprogrammed chip for displacement change, so far top speed 49.8 mph with the curtains down and a half tank of fuel, and troll at 2.7 mph which is far more important lol!
No fuel burn info, but I can tell you it burns fuel the louder it goes.
Wellcraft WA 22, sterndrive, Volvo Penta F6, 4600 dry weight, Quicksilver replacement Volvo longblock 5.7 for the original 5.0 TBI, rollerized valvetrain, Edelbrock Performer Intake, reprogrammed chip for displacement change, so far top speed 49.8 mph with the curtains down and a half tank of fuel, and troll at 2.7 mph which is far more important lol!
No fuel burn info, but I can tell you it burns fuel the louder it goes.
Rain City
Crew Member
You've taken that thing to 4k?! Man I wouldn't touch past 3800 RPM. What year is yours? Mines a 92 so I always feel like something might turn to dust if I treat it poorly.
Rain City
Crew Member
My first boat the 2007 Maxum had a fuel infected 4.3 Merc and from factory it came with a 21 pitch prop for some reason. I kid you not we had that thing going 60MPH on the river going up to stave. And yes that's up. I'm pretty sure the hull wasn't even designed for those speeds. Neither is the river.
albernifisher
Well-Known Member
26' podded hourston with a 300 verado
45 mph
17 hourston with a 115 Yamaha
44mph
45 mph
17 hourston with a 115 Yamaha
44mph
Fish-on
Member
1999, WOT under load is supposed to be 3900. I cruise at 3050-3100 @ 25MPH depending on tide. Took me some time but finally got my wife and kids dialed in to not packing a bunch of ****. Just the important stuff like beer, fishing gear and Mr.Noodles. lol.
Fish-on
Member
That's an awesome picture. Love that stuff
Aquaholic
Crew Member
That’s a circle boat, motor in backwards vs a drag boat so on straight stretches the prop torque was to the same side as the driver and the boat would torque up. You can see me using body english to help control the landing when I launched off a roller.
MadJigga
Well-Known Member
Nope. Nice collection. Perfect in my eyes
Aces
Well-Known Member
If you love your boat then you’re a lucky man