Best Hull for jet boat

[neilsleder]

How is your SJ? 50 MPH?

I wish! 40mph at tops.

 

[neilsleder]

33 mph boys. That’s with no fuel on board and only in my boxers.

That’s all your boat will do wide open? I thought it would be faster then that. If I took the junk out of mine I could probably get 43mph. But I am always packing more than I need. And got a stereo, heater , bbq, and whole bunch of stuff that weighs me down I could take out.

 

[Chrisco]

52to53 mph for me WOT.

 

[pfi572]

52to53 mph for me WOT.

.

 

[gunner3006]

I might have too much stuff in my boat now. Nice to be prepared tho.

 

[LennyR]

.

LOL , Damn technology !!

 

[neilsleder]

I might have too much stuff in my boat now. Nice to be prepared tho.

Me to but it nice to have that stuff.

 

[iceman5689]

Depends what you plan on using it for and what type of body of
water

 

[LennyR]

8 degree , 212 Hamilton, 21.5. ft . Bottom had a redo in 2016 , (rocks are hard) . This pic was in 2017 on wapiti. 58 mph , 59 kept popping up on gps but wouldn’t stay long even if we rearranged ourselves in boat , about 140 litres of fuel and 2 guys. When I bought this boat it didn’t have a stomp grate , would see just over 60 , I put a stomp grate in soon after , dropped the top speed drastically. We play in shallow water way to much to go without one. I don’t think most guys realize how much it takes to gain even 2 or 3 mph , it’s tough , Especially in the volume pumps like Hammy and Scott. Sure are a lot of nice boats around now though .

 

[174mcx]

What kind of MPH do these tubs do at cruise and WOT?

I had mine out for a rip yesterday on the NSR at home and these are some cruise numbers for you.

Upstream
27-28mph
3150 rpm
36L/hr

Downstream
30-31mph
3050rpm
33L/hr

Keep in mind river water speed and depth all play a part. If I run shallow I can pickup another 1-2mph on each cruise speed in the NSR, I have to stay in less than 12" of water though. Also on the Ram river (which I only run about 10km with this boat the same rpms as above give me 15mph upstream and 40+mph downstream speeds.

WOT, I have no Idea really, in deep water on a lake I would guess 45mph. I have seen 50mph before going downstream in shallow water, If I could go WOT downstream on the Ram I bet I'd have a 60mph boat!

 

[Chrisco]

YEAH !!!! on the lake lol, river is faster. holy fk !! 50.8 for the lake is great.

 

[Chrisco]

What motor Len?

 

[neilsleder]

The only way my boat breaks 40 is to put it in the trailer and pull it with my truck lol. It’s seen 160km before lol.

 

[LennyR]

What motor Len?

LSA. Had a 3.4 was ok , tried a 4 kw hated it , now have a tweaked 3.4 really like it .

 

[LennyR]

YEAH !!!! on the lake lol, river is faster. holy fk !! 50.8 for the lake is great.

I’ve compared on river and lake quite a bit Chris with same set up . It may make 2 mph difference , maybe , but not likely . Where it makes a huge difference is your hole shot , way worse.